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Configuring MLD snooping

This chapter describes MLD snooping, how to configure MLD snooping, configuration examples,
troubleshooting methods, and an appendix about processing IPv6 multicast protocol messages.

Overview

MLD snooping is an IPv6 multicast constraining mechanism that runs on Layer 2 devices to manage
and control IPv6 multicast groups.

By analyzing received MLD messages, an MLD snooping–enabled Layer 2 device establishes
mappings between ports and multicast MAC addresses and forwards IPv6 multicast data based on
these mappings.

, without MLD snooping enabled, the Layer 2 switch floods multicast packets

to all devices at Layer 2 (including VLANs). With MLD snooping enabled, the Layer 2 switch forwards
multicast packets destined for known IPv6 multicast groups to only the receivers that require the
multicast data at Layer 2.

This feature improves bandwidth efficiency, enhances multicast security, and helps per-host
accounting for multicast users.

Figure 89 Before and after MLD snooping is enabled on the Layer 2 device

Basic concepts in MLD snooping

This section describes basic concepts involved in MLD snooping.

MLD snooping related ports

, Router A connects to the multicast source, MLD snooping runs on Switch A

and Switch B, and Host A and Host C are receiver hosts as members of an IPv6 multicast group.

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Summary of Contents for 5820X Series

Page 1: ...HPE 5820X 5800 Switch Series IP Multicast Configuration Guide Part number 5998 7383R Software version Release 1810 Document version 6W100 20160129...

Page 2: ...d 12 212 Commercial Computer Software Computer Software Documentation and Technical Data for Commercial Items are licensed to the U S Government under vendor s standard commercial license Links to thi...

Page 3: ...rts 22 Configuring a port as a simulated member host 23 Enabling IGMP snooping fast leave processing 24 Disabling a port from becoming a dynamic router port 24 Configuring an IGMP snooping querier 25...

Page 4: ...ulticast VLAN 62 Configuration prerequisites 62 Configuring user port attributes 62 Configuring multicast VLAN ports 63 Setting the maximum number of forwarding entries for multicast VLANs 64 Displayi...

Page 5: ...for IGMP messages 106 Configuring IGMP SSM mapping 106 Configuration prerequisites 106 Enabling SSM mapping 107 Configuring SSM mappings 107 Configuring IGMP proxying 107 Configuration prerequisites 1...

Page 6: ...ng join prune message sizes 164 Configuring PIM to work with BFD 164 Setting the DSCP value for PIM messages 165 Displaying and maintaining PIM 165 PIM configuration examples 167 PIM DM configuration...

Page 7: ...tion into MBGP 226 Configuring MBGP route summarization 227 Advertising a default route to an IPv4 MBGP peer or peer group 227 Configuring outbound MBGP route filtering 228 Configuring inbound MBGP ro...

Page 8: ...blished 302 An MVRF cannot be created 302 Configuring MLD snooping 304 Overview 304 Basic concepts in MLD snooping 304 How MLD snooping operates 306 MLD snooping proxying 307 Protocols and standards 3...

Page 9: ...oping configuration example in a VLAN 345 Troubleshooting IPv6 PIM snooping 347 IPv6 PIM snooping does not work 347 Some downstream IPv6 PIM capable routers cannot receive multicast data 348 Configuri...

Page 10: ...ssages 389 Configuring MLD SSM mapping 389 Configuration prerequisites 390 Enabling MLD SSM mapping 390 Configuring MLD SSM mappings 390 Configuring MLD proxying 390 Configuration prerequisites 390 En...

Page 11: ...etting the DSCP value for IPv6 PIM messages 446 Displaying and maintaining IPv6 PIM 446 IPv6 PIM configuration examples 447 IPv6 PIM DM configuration example 447 IPv6 PIM SM non scoped zone configurat...

Page 12: ...ECMP routes 488 Configuring a large scale IPv6 MBGP network 488 Configuration prerequisites 488 Configuring an IPv6 MBGP peer group 488 Configuring IPv6 MBGP community 489 Configuring an IPv6 MBGP ro...

Page 13: ...broadcast and multicast Unicast In unicast transmission the information source must send a separate copy of information to each host that needs the information Figure 1 Unicast transmission In Figure...

Page 14: ...ses traffic flooding on the same subnet Broadcast is disadvantageous in transmitting data to specific hosts Moreover broadcast transmission is a significant waste of network resources Multicast Unicas...

Page 15: ...roup is a multicast receiver set identified by an IP multicast address Hosts join a multicast group to become members of the multicast group before they can receive the multicast data addressed to tha...

Page 16: ...to multicast group G Here S represents a specific multicast source and G represents a specific multicast group For more information about the concepts RPT and SPT see Configuring PIM and Configuring I...

Page 17: ...SSM model Dedicated multicast forwarding paths are established between receivers and the specified multicast sources Multicast architecture IP multicast addresses the following issues Where should th...

Page 18: ...ese addresses are considered locally unique rather than globally unique and can be reused in domains administered by different organizations without causing conflicts For more information see RFC 2365...

Page 19: ...dress The P and T bits must also be set to 1 P When set to 0 it indicates that this address is an IPv6 multicast address not based on a unicast prefix When set to 1 it indicates that this address is a...

Page 20: ...As shown in Figure 6 the most significant four bits of a multicast IPv4 address are 1110 which indicates that this address is a multicast address Only 23 bits of the remaining 28 bits are mapped to a...

Page 21: ...yer 3 multicast protocols in a network For more information about these protocols see the related chapters Layer 3 multicast protocols Layer 3 multicast protocols include multicast group management pr...

Page 22: ...ransport of multicast information Layer 2 multicast protocols Layer 2 multicast protocols include IGMP snooping MLD snooping PIM snooping IPv6 PIM snooping multicast VLAN and IPv6 multicast VLAN Figur...

Page 23: ...n in the network different routing tables are used to guide multicast forwarding These routing tables include unicast routing tables and multicast routing tables for example the MBGP routing table spe...

Page 24: ...VPN instances Multicast application in VPNs A PE device that supports multicast for VPNs does the following operations Maintains an independent set of multicast forwarding mechanisms for each VPN incl...

Page 25: ...enabled the Layer 2 switch floods multicast packets to all devices at Layer 2 With IGMP snooping enabled the Layer 2 switch forwards multicast packets destined for known multicast groups are multicas...

Page 26: ...in this document include both static and dynamic router ports and member ports NOTE An IGMP snooping enabled switch deems that all its ports that receive IGMP general queries with the source IP addres...

Page 27: ...fter receiving an IGMP report the switch forwards it through all router ports in the VLAN it also resolves the address of the reported multicast group and looks up the multicast forwarding table for a...

Page 28: ...received the leave message After receiving the IGMP group specific query the switch forwards the query through all its router ports in the VLAN and all member ports of the multicast group Then the swi...

Page 29: ...st group the proxy looks up the multicast forwarding table for a matching forwarding entry If a match is found and the matching entry contains the receiving port as a dynamic member port the proxy res...

Page 30: ...g configurations made on Layer 2 aggregate interfaces do not interfere with the configurations made on member ports In addition the configurations made on Layer 2 aggregate interfaces do not take part...

Page 31: ...ing functions Configuration prerequisites Before you configure basic IGMP snooping functions complete the following tasks Configure the corresponding VLANs Determine the version of IGMP snooping Enabl...

Page 32: ...of IGMP snooping igmp snooping version version number IGMPv2 snooping by default Setting the maximum number of IGMP snooping forwarding entries You can modify the maximum number of entries in the IGMP...

Page 33: ...address interface interface list vlan vlan id No static multicast MAC address entries exist by default To configure a static multicast MAC address entry in interface view Step Command Remarks 1 Enter...

Page 34: ...er ports igmp snooping router aging time interval 105 seconds by default 4 Set the aging timer for the dynamic member ports igmp snooping host aging time interval 260 seconds by default Configuring st...

Page 35: ...the simulated member host receives an IGMP query it gives a response Therefore the switch can continue receiving multicast data A simulated host is equivalent to a real independent host in the followi...

Page 36: ...t leave processing on a port Step Command Remarks 1 Enter system view system view N A 2 Enter Layer 2 Ethernet interface view or Layer 2 aggregate interface view or enter port group view Enter Layer 2...

Page 37: ...ine the source address of IGMP general queries Determine the source address of IGMP group specific queries Enabling IGMP snooping querier In an IP multicast network that runs IGMP a multicast router o...

Page 38: ...and avoid simultaneous timer expirations causing IGMP report traffic bursts set a proper value for the maximum response delay The maximum response delay for IGMP general queries is set by the max resp...

Page 39: ...view system view N A 2 Enter VLAN view vlan vlan id N A 3 Configure the source IP address for IGMP general queries igmp snooping general query source ip ip address current interface 0 0 0 0 by defaul...

Page 40: ...The default is 0 0 0 0 Configuring IGMP snooping policies This section describes how to configure IGMP snooping policies Configuration prerequisites Before you configure IGMP snooping policies comple...

Page 41: ...filter on a port Step Command Remarks 1 Enter system view system view N A 2 Enter Layer 2 Ethernet interface view or Layer 2 aggregate interface view or enter port group view Enter Layer 2 Ethernet in...

Page 42: ...abled the switch forwards unknown multicast data to its router ports instead of flooding it in the VLAN If no router ports exist the switch drops the unknown multicast data Configuration guidelines Th...

Page 43: ...ystem view N A 2 Enter IGMP snooping view igmp snooping N A 3 Enable IGMP report suppression report aggregation Enabled by default Setting the maximum number of multicast groups that a port can join Y...

Page 44: ...multicast group to the new one To realize such requirements you can enable the multicast group replacement function on the switch or on a certain port When the number of multicast groups that the swi...

Page 45: ...ring a multicast user control policy Multicast user control policies are configured on access switches to allow only authorized users to receive requested multicast traffic data This helps restrict us...

Page 46: ...nabling the IGMP snooping host tracking function With the IGMP snooping host tracking function the switch can record the information of the member hosts that are receiving multicast traffic The inform...

Page 47: ...splay static multicast MAC address entries display mac address mac address vlan vlan id multicast vlan vlan id count begin exclude include regular expression Available in any view Display statistics f...

Page 48: ...eiving multicast data Switch A drops unknown multicast data and does not broadcast the data to the VLAN where Switch A resides Figure 14 Network diagram Configuration procedure 1 Assign an IP address...

Page 49: ...1 0 4 as simulated hosts for multicast group 224 1 1 1 SwitchA interface gigabitethernet 1 0 3 SwitchA GigabitEthernet1 0 3 igmp snooping host join 224 1 1 1 vlan 100 SwitchA GigabitEthernet1 0 3 qui...

Page 50: ...s static member ports for multicast group 224 1 1 1 Suppose the STP runs on the network To avoid data loops the forwarding path from Switch A to Switch C is blocked under normal conditions Multicast t...

Page 51: ...RouterA interface gigabitethernet 1 0 2 RouterA GigabitEthernet1 0 2 pim dm RouterA GigabitEthernet1 0 2 quit 3 Configure Switch A Enable IGMP snooping globally SwitchA system view SwitchA igmp snoop...

Page 52: ...lan100 igmp snooping enable SwitchC vlan100 quit Configure GigabitEthernet 1 0 3 and GigabitEthernet 1 0 5 as static member ports for multicast group 224 1 1 1 SwitchC interface GigabitEthernet 1 0 3...

Page 53: ...oup s Router port s total 1 port s GE1 0 2 D 00 01 23 IP group s the following ip group s match to one mac group IP group address 224 1 1 1 0 0 0 0 224 1 1 1 Attribute Host Port Host port s total 2 po...

Page 54: ...work diagram Configuration procedure 1 Configure switch A Enable IGMP snooping globally SwitchA system view SwitchA igmp snooping SwitchA igmp snooping quit Create VLAN 100 and assign GigabitEthernet...

Page 55: ...This example uses Switch B Display statistics for the IGMP messages on Switch B SwitchB display igmp snooping statistics Received IGMP general queries 3 Received IGMPv1 reports 0 Received IGMPv2 repor...

Page 56: ...tchA system view SwitchA igmp snooping SwitchA igmp snooping quit Create VLAN 100 assign ports GigabitEthernet 1 0 1 through GigabitEthernet 1 0 4 to this VLAN and enable IGMP snooping and IGMP snoopi...

Page 57: ...oup report information of VPN Instance public net GigabitEthernet1 0 1 10 1 1 1 Total 1 IGMP Group reported Group Address Last Reporter Uptime Expires 224 1 1 1 0 0 0 0 00 00 06 00 02 04 When Host A l...

Page 58: ...g runs on Switch B Multicast sources and hosts run 802 1X client Perform the following tasks to meet the requirements To block multicast traffic from Source 2 to group 224 1 1 1 configure a multicast...

Page 59: ...rom Source 2 to 224 1 1 1 SwitchA acl number 3001 SwitchA acl adv 3001 rule permit udp source 2 1 1 1 0 destination 224 1 1 1 0 SwitchA acl adv 3001 quit SwitchA traffic classifier classifier1 SwitchA...

Page 60: ...1 0 1 quit SwitchA interface gigabitethernet 1 0 2 SwitchA GigabitEthernet1 0 2 dot1x SwitchA GigabitEthernet1 0 2 quit 3 Configure Switch B Globally enable IGMP snooping SwitchB system view SwitchB i...

Page 61: ...et 1 0 2 SwitchB GigabitEthernet1 0 2 dot1x SwitchB GigabitEthernet1 0 2 quit SwitchB interface gigabitethernet 1 0 3 SwitchB GigabitEthernet1 0 3 dot1x SwitchB GigabitEthernet1 0 3 quit 4 On the RADI...

Page 62: ...Switch A SwitchA display multicast forwarding table 224 1 1 1 Multicast Forwarding Table of VPN Instance public net Total 1 entry Total 1 entry matched 00001 1 1 1 1 224 1 1 1 MID 0 Flags 0x0 0 Uptime...

Page 63: ...y that the correct multicast group policy has been applied If not use the group policy or igmp snooping group policy command to apply the correct multicast group policy 3 Use the display current confi...

Page 64: ...3 multicast routing enabled use the display igmp group port info command to display Layer 2 port information If PIM is disabled on the switch one of the following occurs If IGMP is disabled the switch...

Page 65: ...Figure 19 Source 1 sends multicast data to multicast group G1 and Source 2 sends multicast data to multicast group G2 Receiver 1 belongs to G1 and Receiver 2 belongs to G2 The Layer 2 switch s interfa...

Page 66: ...IM see Configuring PIM Configuring PIM snooping When you configure PIM snooping follow these guidelines After you enable PIM snooping for a VLAN PIM snooping works only on the member interfaces of the...

Page 67: ...group 225 1 1 1 Router C and Router D run IGMP on GigabitEthernet 1 0 1 Router A Router B Router C and Router D run PIM SM and GigabitEthernet 1 0 2 on Router A acts as a C BSR and C RP Configure IGM...

Page 68: ...w RouterC multicast routing enable RouterC interface gigabitethernet 1 0 1 RouterC GigabitEthernet1 0 1 pim sm RouterC GigabitEthernet1 0 1 igmp enable RouterC GigabitEthernet1 0 1 quit RouterC interf...

Page 69: ...Upstream port GE1 0 2 Total number of downstream ports 1 1 GE1 0 4 Expires 00 03 11 FSM J The output shows that Switch A will forward the multicast data intended for multicast group 224 1 1 1 to only...

Page 70: ...s a PIM capable router that has the join suppression function enabled the broadcast join prune message fragments might suppress the join messages of other PIM capable routers in the VLAN As a result s...

Page 71: ...evice is the solution to this issue After the multicast VLAN is configured on Switch A Router A sends only one copy of the multicast data to the multicast VLAN on Switch A This saves network bandwidth...

Page 72: ...0 is configured as a multicast VLAN All user ports ports with attached hosts are hybrid ports and are assigned to VLAN 10 IGMP snooping is enabled for the multicast VLAN and VLAN 2 through VLAN 4 Figu...

Page 73: ...Configuring a sub VLAN based multicast VLAN This section describes how to configure a sub VLAN based multicast VLAN Configuration prerequisites Before you configure a sub VLAN based multicast VLAN co...

Page 74: ...tions made in port group view are effective on all ports in the current port group Configuration prerequisites Before you configure a port based multicast VLAN complete the following tasks Create VLAN...

Page 75: ...ser ports in the multicast VLAN or specifying the multicast VLAN on the user ports These two methods provide the same result Configuration guidelines You cannot configure a multicast VLAN on a device...

Page 76: ...se the system does not automatically remove any existing entries or create new entries To configure the maximum number of entries in the forwarding table Step Command Remarks 1 Enter system view syste...

Page 77: ...Assign an IP address and subnet mask to each interface according to Figure 24 Details not shown 2 On Router A enable IP multicast routing enable PIM DM on each interface and enable IGMP on the host s...

Page 78: ...LANs SwitchA multicast vlan 10 SwitchA mvlan 10 subvlan 2 to 5 SwitchA mvlan 10 quit 4 Configure Switch B Enable IGMP snooping globally SwitchB system view SwitchB igmp snooping SwitchB igmp snooping...

Page 79: ...t s IP group s the following ip group s match to one mac group IP group address 224 1 1 1 0 0 0 0 224 1 1 1 Host port s total 1 port s GE1 0 2 D MAC group s MAC group address 0100 5e01 0101 Host port...

Page 80: ...roup address 0100 5e01 0101 Host port s total 1 port s GE1 0 3 Vlan id 10 Total 1 IP Group s Total 1 IP Source s Total 1 MAC Group s Router port s total 1 port s GE1 0 1 D IP group s the following ip...

Page 81: ...Figure 25 Details not shown 2 On Router A enable IP multicast routing enable PIM DM on each interface and enable IGMP on the host side interface GigabitEthernet 1 0 2 RouterA system view RouterA mult...

Page 82: ...3 and GigabitEthernet 1 0 4 in the same way Details not shown Configure VLAN 10 as a multicast VLAN SwitchA multicast vlan 10 Assign GigabitEthernet 1 0 2 and GigabitEthernet 1 0 3 to VLAN 10 SwitchA...

Page 83: ...one mac group IP group address 224 1 1 1 0 0 0 0 224 1 1 1 Host port s total 3 port s GE1 0 2 D GE1 0 3 D GE1 0 4 D MAC group s MAC group address 0100 5e01 0101 Host port s total 3 port s GE1 0 2 GE1...

Page 84: ...ute from the multicast routing table based on the configured multicast routing and forwarding policy and adds the route entry to its multicast forwarding table The term interface in this chapter colle...

Page 85: ...s a route as the RPF route in the order of static multicast route MBGP route and unicast route The packet source can mean different things in different situations For a packet traveling along the SPT...

Page 86: ...a multicast packet arrives at Switch C on VLAN interface 20 Switch C forwards the packet to all outgoing interfaces If a multicast packet arrives at VLAN interface 10 Switch C performs an RPF check o...

Page 87: ...can create an RPF route so that a multicast routing entry is created to guide multicast traffic forwarding regardless of whether a unicast route is available Figure 28 Creating an RPF route As shown...

Page 88: ...3 IP Services Configuration Guide Figure 29 Multicast data transmission through a GRE tunnel As shown in Figure 29 a GRE tunnel is established between Switch A and Switch B Switch A encapsulates mult...

Page 89: ...s IGMP Type field set to 0x1E Process of multicast traceroute 1 The querier sends a query to the last hop router 2 After receiving the query the last hop router turns the query packet into a request p...

Page 90: ...bling IP multicast routing in a VPN instance Step Command Remarks 1 Enter system view system view N A 2 Create a VPN instance and enter VPN instance view ip vpn instance vpn instance name N A 3 Config...

Page 91: ...y name rpf nbr address interface type interface number preference preference order order number No static multicast route configured by default 3 Delete static multicast routes delete ip rpf route sta...

Page 92: ...The router maintains the corresponding forwarding entry for each multicast packet that it receives Excessive multicast routing entries however can exhaust the router s memory and cause lower performa...

Page 93: ...HPE 5800 switches and 2000 for the HPE 5820X switches 4 Configure the maximum number of downstream nodes for a single route in the multicast forwarding table multicast forwarding table downstream limi...

Page 94: ...exclude include match interface type interface number register statistics slot slot number port info begin exclude include regular expression Available in any view Display the DF information of the m...

Page 95: ...erface interface type interface number register all Available in user view When a multicast routing entry is removed the associated multicast forwarding entry is removed For more information about des...

Page 96: ...n VLAN interface 100 and enable PIM DM on each interface SwitchB system view SwitchB multicast routing enable SwitchB interface vlan interface 100 SwitchB Vlan interface100 igmp enable SwitchB Vlan in...

Page 97: ...ighbor on the route to Source SwitchB ip rpf route static 50 1 1 100 24 20 1 1 2 Verifying the configuration Display information about the RPF route to the source on Switch B SwitchB display multicast...

Page 98: ...quit SwitchC interface vlan interface 101 SwitchC Vlan interface101 pim dm SwitchC Vlan interface101 quit On Switch A enable IP multicast routing and enable PIM DM on each interface SwitchA system vie...

Page 99: ...100 RPF interface Vlan interface102 RPF neighbor 30 1 1 2 Referenced route mask 50 1 1 0 24 Referenced route type multicast static Route selection rule preference preferred Load splitting rule disabl...

Page 100: ...quit Create interface Tunnel 0 on Switch A configure the IP address and subnet mask for the interface and reference service loopback group 1 on interface Tunnel 0 SwitchA interface tunnel 0 SwitchA T...

Page 101: ...twork 10 1 1 0 0 0 0 255 SwitchA ospf 1 area 0 0 0 0 network 20 1 1 0 0 0 0 255 SwitchA ospf 1 area 0 0 0 0 network 50 1 1 0 0 0 0 255 SwitchA ospf 1 area 0 0 0 0 quit SwitchA ospf 1 quit Configure OS...

Page 102: ...pecifying the RPF neighbor leading toward the source as Tunnel 0 on Switch A SwitchC ip rpf route static 50 1 1 0 24 50 1 1 1 Verifying the configuration Display PIM routing table information on Switc...

Page 103: ...specify the next hop address for the outgoing interface when you configure the static multicast route 3 Verify that the static multicast route matches the specified routing protocol If a protocol was...

Page 104: ...IGMPv3 documented in RFC 3376 All IGMP versions support the ASM model In addition to the ASM model IGMPv3 can directly implement the SSM model IGMPv1 and IGMPv2 must work with the IGMP SSM mapping fu...

Page 105: ...members do not need to report their memberships This IGMP report suppression mechanism helps reduce traffic on the local subnet 4 At the same time because Host A is interested in G2 it sends a report...

Page 106: ...host sends a leave message to all routers on the local subnet The destination address is 224 0 0 2 2 After receiving the leave message the querier sends a configurable number of group specific querie...

Page 107: ...specific queries A general query does not carry a group address or a source address A group specific query carries a group address but no source address A group and source specific query carries a gr...

Page 108: ...in the IGMPv1 or IGMPv2 report into G INCLUDE S1 S2 information Figure 35 Network diagram As shown in Figure 35 on an SSM network Host A Host B and Host C run IGMPv1 IGMPv2 and IGMPv3 respectively To...

Page 109: ...ce Downstream interface An interface that is running IGMP and is not in the direction toward the root of the multicast forwarding tree A downstream interface acts as a router that is running IGMP Ther...

Page 110: ...uration in interface view the corresponding global configuration made in IGMP view applies to the interface To configure IGMP Task Remarks Configuring basic IGMP functions Enabling IGMP Required Speci...

Page 111: ...routing multicast routing enable Disabled by default 3 Enter interface view interface interface type interface number N A 4 Enable IGMP igmp enable Disabled by default Enabling IGMP in a VPN instance...

Page 112: ...en the interface can receive multicast data addressed to that multicast group Configuration guidelines When you configure an interface of a PIM SM device as a static member interface If the interface...

Page 113: ...cast group Setting the maximum number of multicast groups that an interface can join To configure the maximum number of multicast groups an interface can join Step Command Remarks 1 Enter system view...

Page 114: ...tibility the device by default ignores the Router Alert option and processes all received IGMP messages no matter whether the IGMP messages carry the Router Alert option To enhance device performance...

Page 115: ...ry When the timer value decreases to 0 the host sends an IGMP report to the corresponding multicast group To speed up the response of hosts to IGMP queries and avoid simultaneous timer expirations cau...

Page 116: ...present interval is IGMP general query interval IGMP robustness variable maximum response time for IGMP general queries 2 To configure IGMP query and response parameters on an interface Step Command...

Page 117: ...ocessing configuration is effective only if the device is running IGMPv2 or IGMPv3 The IGMP fast leave processing configuration is effective on Layer 3 interfaces other than VLAN interfaces including...

Page 118: ...value for IGMP messages Step Command Remarks 1 Enter system view system view N A 2 Enter public network IGMP view or VPN instance IGMP view igmp vpn instance vpn instance name N A 3 Set the DSCP value...

Page 119: ...ost still sends IGMPv3 reports In this case the corresponding multicast group will not be created based on the configured IGMP SSM mappings For more information about the igmp snooping host join comma...

Page 120: ...face with IGMP snooping enabled or vice versa Configuration procedure To enable IGMP proxying Step Command Remarks 1 Enter system view system view N A 2 Enter interface view interface interface type i...

Page 121: ...an display information about the hosts tracked by IGMP on Layer 3 interfaces other than VLAN interfaces Display information about the hosts tracked by IGMP on the Layer 2 ports display igmp host port...

Page 122: ...s that join the group based on IGMP SSM mappings on Layer 3 interfaces other than VLAN interfaces Remove dynamic IGMP group entries for IGMP groups reset igmp all instance vpn instance vpn instance na...

Page 123: ...uration procedure 1 Assign an IP address and subnet mask to each interface according to Figure 37 Details not shown 2 Configure OSPF protocol on the switches in the PIM network to meet the following r...

Page 124: ...an interface202 quit 4 Configure a multicast group filter on Switch A so that the hosts connected to VLAN interface 100 can join only multicast group 224 1 1 1 SwitchA acl number 2001 SwitchA acl basi...

Page 125: ...Switch A VLAN interface 100 133 133 1 2 24 Switch C VLAN interface 300 133 133 3 2 24 VLAN interface 101 192 168 1 1 24 VLAN interface 103 192 168 3 1 24 VLAN interface 104 192 168 4 2 24 VLAN interf...

Page 126: ...rface100 pim sm SwitchA Vlan interface100 quit SwitchA interface vlan interface 101 SwitchA Vlan interface101 pim sm SwitchA Vlan interface101 quit SwitchA interface vlan interface 104 SwitchA Vlan in...

Page 127: ...up reported Group Address Last Reporter Uptime Expires 232 1 1 1 133 133 4 1 00 02 04 off Display PIM routing table information on Switch D SwitchD display pim routing table Vpn instance public net To...

Page 128: ...On Switch A enable IP multicast routing enable PIM DM on VLAN interface 101 and enable IGMP on VLAN interface 100 SwitchA system view SwitchA multicast routing enable SwitchA interface vlan interface...

Page 129: ...r Symptom When a host sends a report for joining multicast group G no membership information of the multicast group G exists on the router closest to that host Analysis The correctness of networking a...

Page 130: ...membership information Analysis A router running IGMP maintains multiple parameters for each interface and these parameters influence one another forming very complicated relationships Inconsistent I...

Page 131: ...ncluding VLAN interfaces and Layer 3 Ethernet interfaces You can set an Ethernet port as a Layer 3 interface by using the port link mode route command see Layer 2 LAN Switching Configuration Guide PIM...

Page 132: ...to the upstream node The message notifies the upstream node to delete the corresponding interface from the outgoing interface list in the S G entry Then the upstream node stops forwarding subsequent...

Page 133: ...ward the packet to the local subnet As a result the downstream node Router C receives two identical multicast packets In addition both Router A and Router B on their downstream interfaces receive a du...

Page 134: ...r reaching the RP the multicast packet is duplicated and delivered to the receivers along the RPT NOTE Multicast traffic is duplicated only where the distribution tree branches and this process automa...

Page 135: ...the topological structure of the RPT you can configure multiple candidate RPs C RPs in a PIM SM domain among which an RP is dynamically elected through the bootstrap mechanism Each elected RP is desig...

Page 136: ...ave the same priority the C RP with the largest hash value wins The hash value is calculated through the hashing algorithm 4 If the C RPs have the same hash value the C RP with the highest IP address...

Page 137: ...through the RP reaches the corresponding DR along the established RPT and finally is delivered to the receiver When a receiver is no longer interested in the multicast data addressed to multicast grou...

Page 138: ...the source side DR by unicast to stop the source registration process This section assumes that the RP is allowed to initiates the switchover to SPT If the RP is not allowed to do so the source side...

Page 139: ...milar assert mechanism as PIM DM does For more information see Assert BIDIR PIM In some many to many applications such as multi side video conference there might be multiple receivers interested in mu...

Page 140: ...ceiving the RP information Router B and Router C initiate a DF election process for the RP 1 Router B and Router C multicast DF election messages to all PIM routers 224 0 0 13 The election messages ca...

Page 141: ...r to the RP form an RPT branch Each router on this branch adds a G entry to its forwarding table After a receiver host leaves the multicast group G the directly connected router multicasts a prune mes...

Page 142: ...e to the receiver instead of by the RP Administrative scoping This section describes division of PIM SM domains and relationship between admin scoped zones and the global scoped zone Division of PIM S...

Page 143: ...graphical spaces and multicast group address ranges In view of geographical locations An admin scope zone is a logical zone for particular multicast groups The multicast packets for such multicast gro...

Page 144: ...te a multicast source by means of advertisements consultancy and so on No RP or RPT is required no source registration process exists and the MSDP is not needed for discovering sources in other PIM do...

Page 145: ...try is created on all routers on the path from the DR to the source An SPT is thereby built in the network with the source S as its root and receivers as its leaves This SPT is the transmission channe...

Page 146: ...ards RFC 3973 Protocol Independent Multicast Dense Mode PIM DM Protocol Specification Revised RFC 4601 Protocol Independent Multicast Sparse Mode PIM SM Protocol Specification Revised RFC 5015 Bidirec...

Page 147: ...ling PIM DM When PIM DM is enabled a router sends hello messages periodically to discover PIM neighbors and processes messages from the PIM neighbors When you deploy a PIM DM domain enable PIM DM on a...

Page 148: ...mand Remarks 1 Enter system view system view N A 2 Enter interface view interface interface type interface number N A 3 Enable the state refresh capability pim state refresh capable Optional Enabled b...

Page 149: ...ft ack message from the upstream router within the specified time the router keeps sending new graft messages at a configurable interval known as graft retry period until it receives a graft ack messa...

Page 150: ...e static RP Determine the C RP priority and the ACL rule defining the range of multicast groups to be served by each C RP Determine the legal C RP address range and the ACL rule defining the range of...

Page 151: ...tance 7 Enable PIM SM pim sm Disabled by default For more information about the ip vpn instance route distinguisher and ip binding vpn instance commands see MPLS Command Reference Configuring an RP CA...

Page 152: ...ing policy on all C BSRs in the PIM SM domain When you configuring a C RP ensure a relatively large bandwidth between this C RP and the other devices in the PIM SM domain To configure a C RP Step Comm...

Page 153: ...have at least one C BSR Any router can be configured as a C BSR Elected from C BSRs the BSR is responsible for collecting and advertising RP information in the PIM SM domain Configuring a C BSR C BSRs...

Page 154: ...interface For more information about multicast static routes see Configuring multicast routing and forwarding To configure a C BSR Step Command Remarks 1 Enter system view system view N A 2 Enter pub...

Page 155: ...network PIM view or VPN instance PIM view pim vpn instance vpn instance name N A 3 Configure the hash mask length c bsr hash length hash length Optional 30 by default 4 Configure the C BSR priority c...

Page 156: ...ceiving all these BSMFs Because the RP set information contained in each segment is different loss of some IP fragments does not result in dropping of the entire message Generally a BSR performs BSM s...

Page 157: ...in scope zone boundary Step Command Remarks 1 Enter system view system view N A 2 Enter interface view interface interface type interface number N A 3 Configure a multicast forwarding boundary multica...

Page 158: ...the global scope zone c bsr global hash length hash length priority priority No C BSRs are configured for the global scope zone by default Configuring multicast source registration Within a PIM SM do...

Page 159: ...the device to calculate the checksum based on the entire register messages register whole checksum Optional By default the checksum is calculated based on the header of register messages 5 Configure t...

Page 160: ...guring C BSRs for each admin scope zone and the global scope zone Optional Configuring common PIM features Optional Configuration prerequisites Before you configure BIDIR PIM complete the following ta...

Page 161: ...system view N A 2 Create a VPN instance and enter VPN instance view ip vpn instance vpn instance name N A 3 Configure an RD for the VPN instance route distinguisher route distinguisher Not configured...

Page 162: ...You must perform static RP configuration on all routers in the BIDIR PIM domain and specify the same RP address To configure a static RP Step Command Remarks 1 Enter system view system view N A 2 Ent...

Page 163: ...within the BIDIR PIM domain C RPs must periodically send C RP Adv messages to the BSR The BSR learns the RP set information from the received messages and encapsulates its own IP address together with...

Page 164: ...border routers Because a BSR is inside the network whereas hosts are outside the network you can protect a BSR against attacks from external hosts by enabling the border routers to perform neighbor c...

Page 165: ...ent messages to the BSR The BSR summarizes the advertisement messages to form an RP set and advertises it to all routers in the BIDIR PIM domain All routers use the same hash algorithm to get the RP a...

Page 166: ...mer c bsr holdtime interval Optional By default the BS timeout timer is determined by the formula BS timeout timer BS period 2 10 The default BS period is 60 seconds so the default BS timeout timer is...

Page 167: ...scope zone also maintains a BSR which serves the rest multicast groups Enabling administrative scoping Before you configure an admin scope zone you must enable administrative scoping first Perform the...

Page 168: ...vpn instance vpn instance name N A 3 Configure a C BSR for an admin scope zone c bsr group group address mask mask length hash length hash length priority priority No C BSRs are configured for an admi...

Page 169: ...Before you configure PIM SSM complete the following tasks Configure any unicast routing protocol so that all devices in the domain are interoperable at the network layer Determine the SSM group range...

Page 170: ...sure that the same SSM group range is configured on all routers in the entire domain Otherwise multicast information cannot be delivered through the SSM model If the group address in the S G packets...

Page 171: ...Configuring common PIM timers Optional Configuring join prune message sizes Optional Configuring PIM to work with BFD Optional Setting the DSCP value for PIM messages Optional Configuration prerequisi...

Page 172: ...ring effect To configure a multicast data filter Step Command Remarks 1 Enter system view system view N A 2 Enter public network PIM view or VPN instance PIM view pim vpn instance vpn instance name N...

Page 173: ...diately Instead it maintains the current forwarding state for a period of LAN delay plus override interval If the downstream router needs to continue receiving multicast data it must send a join messa...

Page 174: ...Disable join suppression pim hello option neighbor tracking Enabled by default 8 Configure the interface to reject hello messages without a generation ID pim require genid By default hello messages wi...

Page 175: ...not immediately delete the corresponding S G entry Instead it maintains the S G entry for a period of time the multicast source lifetime before deleting the S G entry NOTE If no special networking re...

Page 176: ...e N A 3 Configure the maximum size of each join prune message jp pkt size packet size Optional 8100 bytes by default 4 Configure the maximum number of S G entries in each join prune message jp queue s...

Page 177: ...e BSR information in the PIM SM domain and locally configured C RP information in effect display pim all instance vpn instance vpn instance name bsr info begin exclude include regular expression Avail...

Page 178: ...e in any view Display PIM neighboring information display pim all instance vpn instance vpn instance name neighbor interface interface type interface number neighbor address verbose begin exclude incl...

Page 179: ...runs between Switch A and N1 and between Switch B Switch C and N2 Figure 53 Network diagram Device Interface IP address Device Interface IP address Switch A VLAN interface 100 10 110 1 1 24 Switch D V...

Page 180: ...e 103 SwitchA Vlan interface103 pim dm SwitchA Vlan interface103 quit Enable IP multicast routing IGMP and PIM DM on Switch B and Switch C in the same way Switch A is configured Details not shown On S...

Page 181: ...generated on Switch A You can use the display pim routing table command to view the PIM routing table information on each switch For example Display PIM routing table information on Switch A SwitchA...

Page 182: ...ve VOD information through multicast The receiver groups of different organizations form stub networks and one or more receiver hosts exist in each stub network The entire PIM SM domain contains only...

Page 183: ...105 192 168 4 1 24 Configuration procedure 1 Assign an IP address and subnet mask to each interface according to Figure 54 Details not shown 2 Configure OSPF on the switches in the PIM SM domain to ma...

Page 184: ...t source 225 1 1 0 0 0 0 255 SwitchD acl basic 2005 quit SwitchD pim SwitchD pim c bsr vlan interface 105 32 10 SwitchD pim c rp vlan interface 105 group policy 2005 SwitchD pim quit On Switch E confi...

Page 185: ...RP 192 168 4 2 Vlan interface105 Priority 192 HoldTime 150 Advertisement Interval 60 Next advertisement scheduled at 00 00 34 Display information about the BSR and locally configured C RP in effect on...

Page 186: ...ath Switch A and Switch E have a G entry and switches on the SPT path Switch A and Switch D have an S G entry You can use the display pim routing table command to view the PIM routing table informatio...

Page 187: ...192 168 9 2 local Protocol pim sm Flag WC UpTime 00 13 16 Upstream interface Register Upstream neighbor 192 168 4 2 RPF prime neighbor 192 168 4 2 Downstream interface s information Total number of d...

Page 188: ...110 3 1 24 VLAN interface 108 10 110 7 2 24 Switch C VLAN interface 300 192 168 3 1 24 Switch F VLAN interface 109 10 110 9 1 24 VLAN interface 104 10 110 4 1 24 VLAN interface 107 10 110 8 2 24 VLAN...

Page 189: ...interface vlan interface 101 SwitchA Vlan interface101 pim sm SwitchA Vlan interface101 quit Enable IP multicast routing and administrative scoping enable PIM SM and IGMP on Switch E and Switch I in...

Page 190: ...dary 239 0 0 0 8 SwitchD Vlan interface107 quit 5 Configure C BSRs and C RPs On Switch B configure the service scope of RP advertisements and configure VLAN interface 101 as a C BSR and C RP of admin...

Page 191: ...e BSR Address 10 110 1 2 Priority 64 Hash mask length 30 State Elected Scope 239 0 0 0 8 Candidate RP 10 110 1 2 Vlan interface101 Priority 192 HoldTime 150 Advertisement Interval 60 Next advertisemen...

Page 192: ...ope Global Uptime 00 11 11 Next BSR message scheduled at 00 00 49 Candidate BSR Address 10 110 9 1 Priority 64 Hash mask length 30 State Elected Scope Global Candidate RP 10 110 9 1 Vlan interface109...

Page 193: ...e public net PIM SM BSR RP information Group MaskLen 224 0 0 0 4 RP 10 110 9 1 local Priority 192 HoldTime 150 Uptime 00 00 32 Expires 00 01 58 BIDIR PIM configuration example Network requirements As...

Page 194: ...k to each interface according to Figure 56 Details not shown 2 Configure OSPF on the switches in the BIDIR PIM domain to make sure they are interoperable at the network layer Details not shown 3 Enabl...

Page 195: ...DIR PIM SwitchC system view SwitchC multicast routing enable SwitchC interface vlan interface 102 SwitchC Vlan interface102 pim sm SwitchC Vlan interface102 quit SwitchC interface vlan interface 103 S...

Page 196: ...DF Uptime DF Address Vlan200 Win 100 1 01 24 09 192 168 2 1 local Vlan101 Win 100 1 01 24 09 10 110 1 2 local Vlan102 Lose 0 0 01 23 12 10 110 2 2 Display the DF information of BIDIR PIM on Switch C S...

Page 197: ...n interface101 2 Vlan interface200 Display the DF information of the multicast forwarding table on Switch C SwitchC display multicast forwarding table df info Multicast DF information of VPN Instance...

Page 198: ...itch A VLAN interface 100 10 110 1 1 24 Switch D VLAN interface 300 10 110 5 1 24 VLAN interface 101 192 168 1 1 24 VLAN interface 101 192 168 1 2 24 VLAN interface 102 192 168 9 1 24 VLAN interface 1...

Page 199: ...icast routing and PIM SM on Switch D and Switch E in the same way Details not shown 4 Configure the SSM group range Configure the SSM group range to be 232 1 1 0 24 one Switch A SwitchA acl number 200...

Page 200: ...Vlan interface105 Protocol pim ssm UpTime 00 12 05 Expires 00 03 25 Troubleshooting PIM This section describes details about troubleshooting PIM A multicast distribution tree cannot be built correctl...

Page 201: ...g Solution 1 Use the display ip routing table command to verify that a unicast route from the receiver host to the multicast source is available 2 Use the display pim interface command to verify PIM i...

Page 202: ...o command to verify that the same static RP address has been configured on all routers in the entire network RPT establishment failure or source registration failure in PIM SM Symptom C RPs cannot uni...

Page 203: ...rify that the BSR information exists on each router and then use the display pim rp info command to verify that the RP information is correct on each router 3 Use the display pim neighbor command to v...

Page 204: ...among different domains With MSDP peer relationship established between appropriate routers in the network the RPs of different PIM SM domains are interconnected with one another These MSDP peers exc...

Page 205: ...he RPT Intermediate MSDP peer An MSDP peer with multicast remote MSDP peers like RP 2 An intermediate MSDP peer forwards SA messages received from one remote MSDP peer to other remote MSDP peers It ac...

Page 206: ...orwarded from one MSDP peer to another The information about the multicast source travels across all PIM SM domains with MSDP peers PIM SM 2 and PIM SM 3 in this example 5 After receiving the SA messa...

Page 207: ...for SA messages As shown in Figure 60 these MSDP peers dispose of SA messages according to the following RPF check rules 1 When RP 2 receives an SA message from RP 1 The source side RP address carrie...

Page 208: ...RP 9 accepts the SA message SA messages from paths other than those described previously are not accepted or forwarded by MSDP peers Intra domain Anycast RP through MSDP Anycast RP refers to an applic...

Page 209: ...hin the PIM SM domain and forward part of the multicast data This achieves load balancing between different RPs Redundancy backup between RPs When an RP fails the multicast source that previously regi...

Page 210: ...ions All the configuration tasks should be performed on RPs in PIM SM domains and each of these RPs acts as an MSDP peer Configuration prerequisites Before you configure basic MSDP functions complete...

Page 211: ...t of the remote MSDP peer An MSDP peer connection must be created on both devices that are a pair of MSDP peers To create an MSDP peer connection Step Command Remarks 1 Enter system view system view N...

Page 212: ...s help the administrator easily distinguish different MSDP peers and better manage MSDP peers To configure the description for an MSDP peer Step Command Remarks 1 Enter system view system view N A 2 E...

Page 213: ...You can flexibly control sessions between MSDP peers by manually deactivating and reactivating the MSDP peering connections When the connection between two MSDP peers is deactivated SA messages will...

Page 214: ...e multicast data packet by packet in register messages and send them to the source side RP The source side RP transmits the S G information to the remote RP through SA messages Then the remote RP join...

Page 215: ...instance vpn instance name N A 3 Enable the device to send SA request messages peer peer address request sa enable Optional Disabled by default 4 Configure a filtering rule for SA request messages pe...

Page 216: ...ation in SA messages peer peer address minimum ttl ttl value Optional 0 by default Configuring the SA cache mechanism To reduce the time spent in obtaining the multicast information enable the SA cach...

Page 217: ...ble in any view Reset the TCP connection with an MSDP peer reset msdp all instance vpn instance vpn instance name peer peer address Available in user view Clear S G entries in the SA cache reset msdp...

Page 218: ...rface 105 10 110 6 2 24 Switch C VLAN interface 104 10 110 4 1 24 VLAN interface 400 10 110 7 1 24 VLAN interface 102 192 168 3 1 24 Source 1 10 110 2 100 24 VLAN interface 101 192 168 1 2 24 Source 2...

Page 219: ...ce vlan interface 101 SwitchB Vlan interface101 pim bsr boundary SwitchB Vlan interface101 quit Configure a PIM domain border separately on Switch C and Switch E in the same way Details not shown 4 Co...

Page 220: ...SwitchE msdp quit Verifying the configuration Display information about BGP peering relationship on Switch B SwitchB display bgp peer BGP local router ID 1 1 1 1 Local AS number 100 Total number of p...

Page 221: ...13 0 Display brief information about MSDP peering relationship on Switch C SwitchC display msdp brief MSDP Peer Brief Information of VPN Instance public net Configured Up Listen Connect Shutdown Down...

Page 222: ...tgoing data packets 0 0 Inter AS multicast configuration by leveraging static RPF peers Network requirements As shown in Figure 63 There are two OSPF ASs AS 100 and AS 200 BGP runs between the two ASs...

Page 223: ...P address and subnet mask to each interface according to Figure 63 Details not shown 2 Configure OSPF on the switches in each AS to meet the following requirements Details not shown The switches in ea...

Page 224: ...pback 0 SwitchA pim c rp loopback 0 SwitchA pim quit Configure C BSRs and C RPs on Switch D and Switch G in the same way Details not shown 5 Configure BGP and redistribute BGP routing information into...

Page 225: ...tchA msdp static rpf peer 10 110 6 2 rp policy list dg SwitchA msdp quit Configure Switch A as the MSDP peer and static RPF peer of Switch D SwitchD ip ip prefix list a permit 10 110 0 0 16 greater eq...

Page 226: ...tion of VPN Instance public net Configured Up Listen Connect Shutdown Down 1 1 0 0 0 0 Peer s Address State Up Down time AS SA Count Reset Count 10 110 2 1 Up 00 16 40 13 0 Anycast RP configuration Ne...

Page 227: ...rface 400 10 110 6 1 24 Loop20 10 1 1 1 32 VLAN interface 104 10 110 4 2 24 Configuration procedure 1 Assign an IP address and subnet mask to each interface according to Figure 64 Details not shown 2...

Page 228: ...nd Switch E in the same way Details not shown 4 Configure C BSRs and C RPs Configure Loopback 10 as a C BSR and Loopback 20 as a C RP on Switch B SwitchB pim SwitchB pim c bsr loopback 10 SwitchB pim...

Page 229: ...B SwitchB display pim routing table VPN Instance public net Total 1 G entry 1 S G entry 225 1 1 1 RP 10 1 1 1 local Protocol pim sm Flag WC UpTime 00 15 04 Upstream interface Register Upstream neighb...

Page 230: ...10 1 1 1 local Protocol pim sm Flag SPT 2MSDP ACT UpTime 00 40 22 Upstream interface Vlan interface104 Upstream neighbor 10 110 4 2 RPF prime neighbor 10 110 4 2 Downstream interface s information Tot...

Page 231: ...rface 104 10 110 5 2 24 VLAN interface 103 192 168 2 1 24 Loop0 3 3 3 3 32 Configuration procedure 1 Assign an IP address and subnet mask to each interface according to Figure 65 Details not shown 2 C...

Page 232: ...face104 pim bsr boundary SwitchC Vlan interface104 quit Configure a PIM domain border separately on Switch A Switch B and Switch D in the same way Details not shown 4 Configure C BSRs and C RPs Config...

Page 233: ...ce Active Cache Information of VPN Instance public net MSDP Total Source Active Cache 8 entries MSDP matched 8 entries Source Group Origin RP Pro AS Uptime Expires 10 110 3 100 225 1 1 0 1 1 1 1 02 03...

Page 234: ...ntries exist in the router s SA cache Symptom MSDP fails to send S G entries through SA messages Analysis The import source command controls sending S G entries through SA messages to MSDP peers If th...

Page 235: ...ssage it performs RPF check on the message If the MSDP peer finds that the remote RP address is the same as the local RP address it will discard the SA message Solution 1 Use the display ip routing ta...

Page 236: ...fferent results ensuring consistent unicast forwarding and normal multicast between domains MP BGP is defined in RFC 2858 Multiprotocol Extensions for BGP 4 The application of MP BGP for multicast is...

Page 237: ...s Configuration prerequisites Before you configure MBGP make sure neighboring nodes can access each other at the network layer Configuration procedure To configure basic MBGP functions Step Command Re...

Page 238: ...bution from another routing protocol Enable route redistribution from another routing protocol import route protocol process id all processes allow direct med med value route policy route policy name...

Page 239: ...one To configure MBGP route summarization Step Command Remarks 1 Enter system view system view N A 2 Enter BGP view bgp as number N A 3 Enter IPv4 MBGP address family view ipv4 family multicast N A 4...

Page 240: ...ress family view ipv4 family multicast N A 4 Configure BGP route distribution filtering policies Configure the filtering of redistributed routes filter policy acl number ip prefix ip prefix name expor...

Page 241: ...ACL or IP prefix list filter policy acl number ip prefix ip prefix name import Reference a routing policy to routes from an IPv4 MBGP peer or a peer group peer group name ip address route policy poli...

Page 242: ...default Configuring MBGP route attributes You can modify MBGP route attributes to affect route selection Configuration prerequisites Before you configure this task you must configure basic MBGP functi...

Page 243: ...fferent Ass compare different as me d Enable the comparison of the MED of routes from each AS bestroute compare med Enable the comparison of the MED of routes from confederation peers bestroute med co...

Page 244: ...routing loops To configure the AS_PATH attribute Step Command Remarks 1 Enter system view system view N A 2 Enter BGP view bgp as number N A 3 Enter IPv4 MBGP address family view ipv4 family multicast...

Page 245: ...message Therefore the local router can perform dynamic route update and apply the new policy without terminating MBGP connections To perform soft reset through route refresh Step Command Remarks 1 Ent...

Page 246: ...information through specific route refresh messages For the parameters configured on both sides for ORF capability negotiation see Table 8 To enable the MBGP ORF capability Step Command Remarks 1 Ent...

Page 247: ...utes balance ebgp ibgp number By default load balancing is not configured Configuring a large scale MBGP network Refer to the following information for details about configuring a large scale MBGP net...

Page 248: ...unity attributes as needed When you configure MBGP community you must reference a routing policy to define the specific COMMUNITY attributes and apply the routing policy for route advertisement For ro...

Page 249: ...GP peer or a peer group as its client peer group name peer address reflect client Not configured by default 5 Enable route reflection between clients reflect between clients Optional Enabled by defaul...

Page 250: ...ist number comm list name whole match adv community list number begin exclude include regular expression Available in any view Display MBGP dampened routing information display bgp multicast routing t...

Page 251: ...nfiguration example Network requirements As shown in Figure 66 PIM SM 1 is in AS 100 and PIM SM 2 is in AS 200 OSPF is the IGP in the two ASs and MBGP runs between the two ASs to exchange multicast ro...

Page 252: ...ch interface SwitchA system view SwitchA multicast routing enable SwitchA interface vlan interface 100 SwitchA Vlan interface100 pim sm SwitchA Vlan interface100 quit SwitchA interface vlan interface...

Page 253: ...k 0 SwitchB pim quit 5 Configure BGP specify the MBGP peer and enable direct route redistribution On Switch A configure the MBGP peer and enable direct route redistribution SwitchA bgp 100 SwitchA bgp...

Page 254: ...ter ID 2 2 2 2 Local AS number 200 Total number of peers 3 Peers in established state 3 Peer AS MsgRcvd MsgSent OutQ PrefRcv Up Down State 192 168 1 1 100 56 56 0 0 00 40 54 Established Use the displa...

Page 255: ...tomer edge CE devices and processes VPN routing CE device Edge device on a customer network A CE device can be a router a switch or a host that implements route distribution on the customer network As...

Page 256: ...and support multicast for each single VPN The PE devices connect with the public network and support multicast for the public network The PE devices support information exchange and data conversion be...

Page 257: ...roup address In a VPN the share MDT is uniquely identified by the share group A share MDT is automatically created after configuration and will always exist in the public network regardless of the pre...

Page 258: ...mission pool automatically duplicates the private data and transmits the data to each exit MTI of the transmission pool so that any remote PE device that needs the data can get it from the respective...

Page 259: ...TI and share group PIM neighboring relationships in MD VPN Figure 70 PIM neighboring relationships in MD VPN PIM neighboring relationships are established between two or more directly interconnected d...

Page 260: ...rom Source 1 The PE that directly connects to the multicast source is called the source side PE The PEs that directly connect to the sites of the receivers are called the receiver side PEs In this fig...

Page 261: ...e configuration a share MDT is established for VPN instance A After receiving multicast packets from Source 1 PE 1 encapsulates and forwards them to PE 2 and PE 3 along the share MDT PE 2 and PE 3 de...

Page 262: ...andards draft rosen vpn mcast 08 Multicast in MPLS BGP IP VPNs How MD VPN works This section describes how the MD VPN technology is implemented including the construction of a share MDT delivery of mu...

Page 263: ...e entry is created on each device along the path in the public network This forms an SPT with PE 1 as the root and PE 2 and PE 3 as leaves At the same time PE 2 and PE 3 separately initiate a similar...

Page 264: ...SPTs constitute a share MDT Share MDT establishment in a BIDIR PIM network Figure 77 Share MDT establishment in a BIDIR PIM network As shown in Figure 77 BIDIR PIM is enabled in the network and all t...

Page 265: ...the PIM SS M network the three independent SPTs constitute a share MDT NOTE In PIM SSM subscribe messages are used equivalent to join messages Characteristics of a share MDT A share MDT is characteri...

Page 266: ...etwork to establish an SPT 3 If the VPN network runs BIDIR PIM Hello packets are forwarded among MTI interfaces to establish PIM neighboring relationships If the receivers and the VPN RP are in differ...

Page 267: ...e 5 When receiving the join message the VPN instance on PE 1 considers that it received the message from the MTI PE 1 creates a local 225 1 1 1 state entry with the downstream interface being the MTI...

Page 268: ...n both the public network and the VPN network As shown in Figure 80 PIM DM is running in both the public network and the VPN sites Receiver of the VPN multicast group G 225 1 1 1 in Site 2 is attached...

Page 269: ...d the switchover threshold and stayed higher than the threshold for a certain length of time 2 PE 1 chooses an idle switch group address from the switch group pool and sends an MDT switchover message...

Page 270: ...PE 3 and PE 4 are the autonomous system boundary router ASBR for AS 1 and AS 2 respectively PE 3 and PE 4 are interconnected through their respective VPN instance and treat each other as a CE device...

Page 271: ...ise it keeps the RPF vector looks up the route to the RPF vector and sends the message to the next hop of the route In this way the PIM message can be forwarded across the ASs and an MDT is establishe...

Page 272: ...o find a BGP MDT route to PE 2 so it encapsulates a new RPF vector IP address of PE 4 in the packet and forwards it to PE 4 4 PE 4 removes the RPF vector because the RPF vector is its own IP address I...

Page 273: ...marks 1 Enter system view system view N A 2 Create a VPN instance and enter VPN instance view ip vpn instance vpn instance name For more information about this command see MPLS Command Reference 3 Con...

Page 274: ...ommand Reference PIM on the MTI interface takes effect only after PIM is enabled on at least one interface of the VPN instance when PIM is disabled on all the interfaces of the VPN instance PIM on the...

Page 275: ...vector Required Disabled by default 4 Enable RPF vector compatibility multicast rpf proxy vector compatible Required Disabled by default Enabling data group reuse logging For a given VPN the number of...

Page 276: ...information with other PEs to obtain their addresses and thus establish a share MDT Perform the following configuration on the PE To configure BGP MDT peers or peer groups Step Command Remarks 1 Enter...

Page 277: ...ute reflector and specify its clients peer group name ip address reflect client By default neither route reflectors nor clients exist 5 Disable route reflection between clients undo reflect between cl...

Page 278: ...are group local remote begin exclude include regular expression Available in any view Display the switch group information received by the specified VPN instance in the MD display multicast domain vpn...

Page 279: ...to VPN instance a VLAN interface 18 and Loopback 2 belong to VPN instance b VLAN interface 19 and Loopback 1 belong to the public network instance Unicast routing protocols and MPLS Configure OSPF in...

Page 280: ...110 12 1 24 PE 1 Vlan int12 192 168 6 1 24 Loop1 22 22 22 22 32 Vlan int20 10 110 1 1 24 CE a3 Vlan int50 10 110 10 1 24 Vlan int11 10 110 2 1 24 Vlan int17 10 110 5 2 24 Loop1 1 1 1 1 32 Vlan int16...

Page 281: ...an available port not in use disable spanning tree protocols LLDP and NDP on the port and add the port to service loopback group 1 PE1 interface gigabitethernet1 0 3 PE1 GigabitEthernet1 0 3 undo stp...

Page 282: ...g PE1 bgp af vpnv4 peer 1 1 1 3 group vpn g PE1 bgp af vpnv4 quit PE1 bgp quit With BGP peers configured on PE 1 the interfaces MTI 0 will automatically obtain an IP address which is the loopback inte...

Page 283: ...n instance a multicast domain share group 239 1 1 1 binding mtunnel 0 PE2 vpn instance a quit Create service loopback group 1 and specify its service type as multicast tunnel PE2 service loopback grou...

Page 284: ...stance b PE2 bgp b import route rip 3 PE2 bgp b import route direct PE2 bgp b quit PE2 bgp ipv4 family vpnv4 PE2 bgp af vpnv4 peer vpn g enable PE2 bgp af vpnv4 peer 1 1 1 1 group vpn g PE2 bgp af vpn...

Page 285: ...it PE3 ip vpn instance b PE3 vpn instance b route distinguisher 200 1 PE3 vpn instance b vpn target 200 1 export extcommunity PE3 vpn instance b vpn target 200 1 import extcommunity Enable IP multicas...

Page 286: ...ress for Loopback 1 and enable PIM SM PE3 interface loopback 1 PE3 LoopBack1 ip address 1 1 1 3 32 PE3 LoopBack1 pim sm PE3 LoopBack1 quit Bind Loopback 2 with VPN instance b configure an IP address a...

Page 287: ...0 0 quit PE3 ospf 1 quit Configure RIP PE3 rip 2 vpn instance a PE3 rip 2 network 10 0 0 0 PE3 rip 2 import route bgp PE3 rip 2 quit PE3 rip 3 vpn instance b PE3 rip 3 network 10 0 0 0 PE3 rip 3 netw...

Page 288: ...twork instance P pim P pim c bsr loopback 1 P pim c rp loopback 1 P pim quit Configure OSPF P ospf 1 P ospf 1 area 0 0 0 0 P ospf 1 area 0 0 0 0 network 2 2 2 2 0 0 0 0 P ospf 1 area 0 0 0 0 network 1...

Page 289: ...face CEa2 interface vlan interface 40 CEa2 Vlan interface40 ip address 10 110 9 1 24 CEa2 Vlan interface40 igmp enable CEa2 Vlan interface40 pim sm CEa2 Vlan interface40 quit Configure an IP address f...

Page 290: ...r VLAN interface 16 and enable PIM SM on the interface CEa3 interface vlan interface 16 CEa3 Vlan interface16 ip address 10 110 12 2 24 CEa3 Vlan interface16 pim sm CEa3 Vlan interface16 quit Configur...

Page 291: ...ast domain vpn instance b share group local MD local share group information for VPN Instance b Share group 239 2 2 2 MTunnel address 1 1 1 3 Multi AS MD VPN configuration Network requirements Item Ne...

Page 292: ...PE 3 Enable PIM SM on all public and private network interfaces of PE 1 and PE 4 Enable PIM SM on all interfaces of CE a1 CE a2 CE b1 and CE b2 Configure Loopback 2 of PE 2 and PE 3 as a C BSR and a...

Page 293: ...ance a configure an RD and route target attributes for it Enable IP multicast routing in VPN instance a configure a share group address and associate an MTI with the VPN instance PE1 ip vpn instance a...

Page 294: ...ip binding vpn instance a PE1 Vlan interface11 ip address 10 11 1 1 24 PE1 Vlan interface11 pim sm PE1 Vlan interface11 quit Bind VLAN interface 12 with VPN instance b configure an IP address and enab...

Page 295: ...255 PE1 ospf 1 area 0 0 0 0 quit PE1 ospf 1 quit PE1 ospf 2 vpn instance a PE1 ospf 2 import route bgp PE1 ospf 2 area 0 0 0 0 PE1 ospf 2 area 0 0 0 0 network 10 11 0 0 0 0 255 255 PE1 ospf 2 area 0 0...

Page 296: ...ance PE2 pim PE2 pim c bsr loopback 2 PE2 pim c rp loopback 2 PE2 pim quit Configure a BSR message boundary PE2 interface vlan interface 3 PE2 Vlan interface3 pim bsr boundary PE2 Vlan interface3 quit...

Page 297: ...PE3 system view PE3 router id 1 1 1 3 PE3 multicast routing enable PE3 mpls lsr id 1 1 1 3 PE3 mpls PE3 mpls quit PE3 mpls ldp PE3 mpls ldp quit Configure an IP address and enable PIM SM and LDP capa...

Page 298: ...port route ospf 1 PE3 bgp group pe3 pe4 internal PE3 bgp peer pe3 pe4 route policy map2 export PE3 bgp peer pe3 pe4 label route capability PE3 bgp peer pe3 pe4 connect interface loopback 1 PE3 bgp pee...

Page 299: ...it Enable IP multicast routing in VPN instance b configure a share group address and associate an MTI with the VPN instance PE4 ip vpn instance b PE4 vpn instance b route distinguisher 200 1 PE4 vpn i...

Page 300: ...200 PE4 bgp group pe4 pe3 internal PE4 bgp peer pe4 pe3 label route capability PE4 bgp peer pe4 pe3 connect interface loopback 1 PE4 bgp peer 1 1 1 3 group pe4 pe3 PE4 bgp group pe4 pe1 external PE4 b...

Page 301: ...P address for VLAN interface 10 and enable PIM SM on the interface CEa1 interface vlan interface 10 CEa1 Vlan interface10 ip address 10 11 5 1 24 CEa1 Vlan interface10 pim sm CEa1 Vlan interface10 qui...

Page 302: ...ork 10 11 0 0 0 0 255 255 CEb1 ospf 1 area 0 0 0 0 quit CEb1 ospf 1 quit 7 Configure CE a2 Enable IP multicast routing CEa2 system view CEa2 multicast routing enable Configure an IP address for VLAN i...

Page 303: ...im quit Configure OSPF CEb2 ospf 1 CEb2 ospf 1 area 0 0 0 0 CEb2 ospf 1 area 0 0 0 0 network 3 3 3 3 0 0 0 0 CEb2 ospf 1 area 0 0 0 0 network 10 11 0 0 0 0 255 255 CEb2 ospf 1 area 0 0 0 0 quit CEb2 o...

Page 304: ...1 Loop1 1 1 1 1 32 S 100 1 1 1 24 Configuration procedure This section focuses on introducing the multicast across VPNs configuration and it does not cover the configurations of network interoperabili...

Page 305: ...nce a PIM SM BSR RP information Group MaskLen 224 0 0 0 4 RP 1 1 1 1 Priority 192 HoldTime 150 Uptime 00 43 51 Expires 00 01 39 Specify 100 1 1 1 and 1 1 1 1 as the source IP addresses for multicast a...

Page 306: ...This section focuses on introducing the multicast across VPNs configuration and it does not cover the configurations of network interoperability route exchanging and MD VPN 1 Configure VPN instance b...

Page 307: ...RP 1 1 1 1 local Priority 0 HoldTime 150 Uptime 02 20 50 Expires 00 01 51 On PE 3 specify 1 1 1 1 and 100 1 1 1 as the source IP addresses for multicast across VPNs in VPN instance b PE3 ip vpn insta...

Page 308: ...igure a Router ID enable IP multicast routing on the public network configure an MPLS LSR ID and enable the LDP capability PE1 system view PE1 router id 1 1 1 1 PE1 multicast routing enable PE1 mpls l...

Page 309: ...VLAN interface 20 with VPN instance a assign an IPv6 address to the interface and enable IPv6 PIM SM PE1 interface vlan interface 20 PE1 Vlan interface20 ip binding vpn instance a PE1 Vlan interface2...

Page 310: ...00 1 export extcommunity PE2 vpn instance a vpn target 100 1 import extcommunity Enable IP multicast routing and IPv6 multicast routing in VPN instance a configure a share group address and associate...

Page 311: ...1 connect interface loopback 1 PE2 bgp ipv6 family vpn instance a PE2 bgp ipv6 a import route ripng 1 PE2 bgp ipv6 a import route direct PE2 bgp ipv6 a quit PE2 bgp ipv6 family vpnv6 PE2 bgp af vpnv6...

Page 312: ...2 168 2 1 24 P Vlan interface40 pim sm P Vlan interface40 mpls P Vlan interface40 mpls ldp P Vlan interface40 quit Assign an IP address to Loopback 1 and enable PIM SM on the interface P interface loo...

Page 313: ...quit CEa1 interface vlan interface 10 CEa1 Vlan interface10 ripng 1 enable CEa1 Vlan interface10 quit CEa1 interface vlan interface 20 CEa1 Vlan interface20 ripng 1 enable CEa1 Vlan interface20 quit C...

Page 314: ...P and unicast route configurations are prerequisites for the MTI interface to obtain an IP address automatically and PIM is enabled on at least one interface of the VPN instance so that PIM can be ena...

Page 315: ...PN instance cannot correctly establish its MVRF The customer DR must have a route to the VPN RP Solution 1 Use the display pim bsr info command to verify that the BSR information exists on the public...

Page 316: ...oping enabled the Layer 2 switch floods multicast packets to all devices at Layer 2 including VLANs With MLD snooping enabled the Layer 2 switch forwards multicast packets destined for known IPv6 mult...

Page 317: ...his document include both static and dynamic router ports and member ports NOTE An MLD snooping enabled switch deems that the all its ports that receive MLD general queries with the source address oth...

Page 318: ...in the VLAN It also resolves the address of the reported IPv6 multicast group and looks up the forwarding entry and takes the following actions If no match is found the switch creates a forwarding en...

Page 319: ...the IPv6 multicast group For the port that receives the done message assuming that it is a dynamic member port the Layer 2 device also performs one of the following actions If the port receives an ML...

Page 320: ...t is contained in the forwarding entry for the IPv6 multicast group the proxy sends a done message for the group out of all router ports Protocols and standards RFC 4541 Considerations for Internet Gr...

Page 321: ...he proxy Optional Configuring an MLD snooping policy Configuring an IPv6 multicast group filter Optional Configuring IPv6 multicast source port filtering Optional Enabling dropping unknown IPv6 multic...

Page 322: ...e VLAN instead of processing them MLDv2 snooping can process MLDv1 and MLDv2 messages If you change MLDv2 snooping to MLDv1 snooping the system Clears all MLD snooping forwarding entries that are dyna...

Page 323: ...lly configure IPv6 multicast MAC address entries Configuration guidelines You can configure an IPv6 static multicast MAC address entry for any legal multicast MAC address A multicast MAC address is a...

Page 324: ...ynamic ports If a switch receives no MLD general queries or IPv6 PIM hello messages on a dynamic router port when the aging timer of the port expires the switch removes the port from the router port l...

Page 325: ...nd an unsolicited MLD report or an MLD done message Static member ports and static router ports never age out To remove such a port use the corresponding undo command Configuration procedure To config...

Page 326: ...simulated member host by default NOTE Unlike a static member port a port that you configure as a simulated member host ages out like a dynamic member port Enabling MLD snooping fast leave processing...

Page 327: ...on the MLD general query and IPv6 PIM hello message that the host sends affects the multicast routing protocol state on Layer 3 devices such as the MLD querier or DR election They might cause network...

Page 328: ...intains multicast forwarding entries Configuration guidelines Do not configure an MLD snooping querier in an IPv6 multicast network that runs MLD An MLD snooping querier does not participate in MLD qu...

Page 329: ...in a VLAN Step Command Remarks 1 Enter system view system view N A 2 Enter VLAN view vlan vlan id N A 3 Set the interval for sending MLD general queries mld snooping query interval interval 125 second...

Page 330: ...ing in a VLAN Step Command Remarks 1 Enter system view system view N A 2 Enter VLAN view vlan vlan id N A 3 Enable MLD snooping proxying in the VLAN mld snooping proxying enable Disabled by default Co...

Page 331: ...6 multicast group and adds the port to the entry Otherwise the switch drops this report message in which case the IPv6 multicast data for the IPv6 multicast group is not sent to this port and the user...

Page 332: ...port can connect to both multicast sources and IPv6 multicast receivers Configuring IPv6 multicast source port filtering globally Step Command Remarks 1 Enter system view system view N A 2 Enter MLD...

Page 333: ...or the IPv6 multicast group to the Layer 3 device It does not forward subsequent MLD reports for the same IPv6 multicast group to the Layer 3 device This helps reduce the number of packets being trans...

Page 334: ...lacement function does not take effect In certain situations the number of IPv6 multicast groups that a switch or a port can join might exceed the upper limit In addition in some specific applications...

Page 335: ...VLAN view vlan vlan id N A 3 Set the 802 1p precedence for MLD messages mld snooping dot1p priority priority number The default 802 1p precedence for MLD messages is 0 Configuring an IPv6 multicast us...

Page 336: ...or more information about the user profile and user profile enable commands see Security Command Reference Enabling the MLD snooping host tracking function With the MLD snooping host tracking function...

Page 337: ...vlan id group ipv6 group address source ipv6 source address slot slot number begin exclude include regular expression Available in any view Display IPv6 static multicast MAC address entries display m...

Page 338: ...witch A even if Host A and Host B accidentally temporarily stop receiving IPv6 multicast data and that Switch A drops unknown IPv6 multicast data and does not broadcast the data to the VLAN where Swit...

Page 339: ...A mld snooping SwitchA mld snooping group policy 2001 vlan 100 SwitchA mld snooping quit Configure GigabitEthernet 1 0 3 and GigabitEthernet 1 0 4 as simulated hosts for IPv6 multicast group FF1E 101...

Page 340: ...ch C as static member ports for multicast group FF1E 101 Suppose STP runs on the network To avoid data loops the forwarding path from Switch A to Switch C is blocked under normal conditions and IPv6 m...

Page 341: ...thernet1 0 1 quit RouterA interface gigabitethernet 1 0 2 RouterA GigabitEthernet1 0 2 pim ipv6 dm RouterA GigabitEthernet1 0 2 quit 3 Configure Switch A Enable MLD snooping globally SwitchA system vi...

Page 342: ...mld snooping enable SwitchC vlan100 quit Configure GigabitEthernet 1 0 3 and GigabitEthernet 1 0 5 as static member ports for the IPv6 multicast group FF1E 101 SwitchC interface GigabitEthernet 1 0 3...

Page 343: ...outer port s total 1 port s GE1 0 2 D 00 01 23 IP group s the following ip group s match to one mac group IP group address FF1E 101 FF1E 101 Attribute Host Port Host port s total 2 port s GE1 0 3 S GE...

Page 344: ...00 and assign GigabitEthernet 1 0 1 through GigabitEthernet 1 0 3 to VLAN 100 SwitchA vlan 100 SwitchA vlan100 port gigabitethernet 1 0 1 to gigabitethernet 1 0 3 Enable MLD snooping and the function...

Page 345: ...MLD general queries 3 Received MLDv1 specific queries 0 Received MLDv1 reports 12 Received MLD dones 0 Sent MLDv1 specific queries 0 Received MLDv2 reports 0 Received MLDv2 reports with right and wron...

Page 346: ...m view SwitchA mld snooping SwitchA mld snooping quit Create VLAN 100 assign ports GigabitEthernet 1 0 1 through GigabitEthernet 1 0 4 to this VLAN and enable MLD snooping and MLD snooping proxying in...

Page 347: ...information about MLD multicast groups on Router A RouterA display mld group Total 1 MLD Group s Interface group report information GigabitEthernet1 0 1 2001 1 Total 1 MLD Group reported Group Address...

Page 348: ...6 Switch A is a Layer 3 switch Switch A connects to IPv6 multicast sources Source 1 and Source 2 through VLAN interface 101 and VLAN interface 102 respectively Switch A connects to the RADIUS server t...

Page 349: ...A vlan102 quit SwitchA vlan 103 SwitchA vlan103 port gigabitethernet 1 0 3 SwitchA vlan103 quit SwitchA vlan 104 SwitchA vlan104 port gigabitethernet 1 0 4 SwitchA vlan104 quit Enable IPv6 multicast r...

Page 350: ...ication authorization server and accounting server as 3 1 Set the shared keys to 123321 Specify that no domain name is carried in a username sent to the RADIUS server SwitchA radius scheme scheme1 Swi...

Page 351: ...r and accounting server as 3 1 set the shared keys to 321123 specify that a username sent to the RADIUS server carry no domain name SwitchB radius scheme scheme2 SwitchB radius scheme2 server type ext...

Page 352: ...Dynamic port S Static port C Copy port P PIM port Subvlan flags R Real VLAN C Copy VLAN Vlan id 100 Total 1 IP Group s Total 1 IP Source s Total 1 MAC Group s Router port s total 1 port s GE1 0 1 D 0...

Page 353: ...command in VLAN view to enable MLD snooping in the corresponding VLAN Configured IPv6 multicast group policy fails to take effect Symptom Although an IPv6 multicast group policy has been configured t...

Page 354: ...MLD messages as unknown messages in the VLAN After receiving an IPv6 PIM hello message the switch maintains the corresponding dynamic router port If MLD is disabled on the switch one of the following...

Page 355: ...ulticast group G2 Receiver 1 belongs to G1 and Receiver 2 belongs to G2 The Layer 2 switch s interfaces that connect to the IPv6 PIM capable routers are in the same VLAN When the Layer 2 switch only r...

Page 356: ...fter you enable IPv6 PIM snooping for a VLAN IPv6 PIM snooping works only on the member interfaces of the VLAN IPv6 PIM snooping does not work in the sub VLANs of a multicast VLAN For more information...

Page 357: ...irements As shown in Figure 98 Source 1 sends multicast data to IPv6 multicast group FF1E 101 and Source 2 sends multicast data to IPv6 multicast group FF2E 101 Receiver 1 belongs to multicast group F...

Page 358: ...ting enable IPv6 PIM SM on each interface and enable MLD on GigabitEthernet 1 0 1 RouterC system view RouterC multicast ipv6 routing enable RouterC interface gigabitethernet 1 0 1 RouterC GigabitEther...

Page 359: ...r FE80 1 Upstream port GE1 0 1 Total number of downstream ports 1 1 GE1 0 3 Expires 00 03 01 FSM J FF2E 101 Upstream neighbor FE80 2 Upstream port GE1 0 2 Total number of downstream ports 1 1 GE1 0 4...

Page 360: ...eration of the system IPv6 PIM snooping must broadcast join prune message fragments in the VLAN However if the VLAN instance has an IPv6 PIM capable router that has the join suppression function enabl...

Page 361: ...lution to this issue With the IPv6 multicast VLAN feature Router A sends the IPv6 multicast data to the IPv6 multicast VLAN on Switch A Switch A sends a separate copy of the data to each user VLAN Thi...

Page 362: ...ssigned to VLAN 10 MLD snooping is enabled for the IPv6 multicast VLAN and all user VLANs Figure 101 Port based IPv6 multicast VLAN MLD snooping manages the router ports and member ports in the IPv6 m...

Page 363: ...w to configure a sub VLAN based IPv6 multicast VLAN Configuration prerequisites Before you configure a sub VLAN based IPv6 multicast VLAN complete the following tasks Enable IPv6 forwarding Create VLA...

Page 364: ...equisites Before you configure a port based IPv6 multicast VLAN complete the following tasks Enable IPv6 forwarding Create VLANs as required Enable MLD snooping in the VLAN to be configured as an IPv6...

Page 365: ...AN must exist A port can belong to only one IPv6 multicast VLAN Configure IPv6 multicast VLAN ports in IPv6 multicast VLAN view To configure IPv6 multicast VLAN ports in IPv6 multicast VLAN view Step...

Page 366: ...6 multicast VLANs multicast vlan ipv6 entry limit limit By default the upper limit is 4000 for the HPE 5800 switches and 1000 for the HPE 5820X switches Displaying and maintaining an IPv6 multicast VL...

Page 367: ...A GigabitEthernet1 0 1 pim ipv6 dm RouterA GigabitEthernet1 0 1 quit RouterA interface gigabitethernet 1 0 2 RouterA GigabitEthernet1 0 2 pim ipv6 dm RouterA GigabitEthernet1 0 2 mld enable 3 Configur...

Page 368: ...h B Enable MLD snooping globally SwitchB system view SwitchB mld snooping SwitchB mld snooping quit Create VLAN 2 assign GigabitEthernet 1 0 2 to VLAN 2 and enable MLD snooping in the VLAN SwitchB vla...

Page 369: ...group IP group address FF1E 101 FF1E 101 Host port s total 1 port s GE1 0 2 D MAC group s MAC group address 3333 0000 0101 Host port s total 1 port s GE1 0 2 Vlan id 3 Total 1 IP Group s Total 1 IP S...

Page 370: ...one mac group IP group address FF1E 101 FF1E 101 Host port s total 0 port s MAC group s MAC group address 3333 0000 0101 Host port s total 0 port s The output shows that MLD snooping is maintaining t...

Page 371: ...2 RouterA system view RouterA multicast ipv6 routing enable RouterA interface gigabitethernet 1 0 1 RouterA GigabitEthernet1 0 1 ipv6 pim dm RouterA GigabitEthernet1 0 1 quit RouterA interface gigabit...

Page 372: ...itchA multicast vlan ipv6 10 Assign GigabitEthernet 1 0 2 and GigabitEthernet 1 0 3 to IPv6 multicast VLAN 10 SwitchA ipv6 mvlan 10 port gigabitethernet 1 0 2 to gigabitethernet 1 0 3 SwitchA ipv6 mvl...

Page 373: ...address FF1E 101 FF1E 101 Host port s total 3 port s GE1 0 2 D GE1 0 3 D GE1 0 4 D MAC group s MAC group address 3333 0000 0101 Host port s total 3 port s GE1 0 2 GE1 0 3 GE1 0 4 The output shows tha...

Page 374: ...ollectively refers to Layer 3 interfaces including VLAN interfaces and Layer 3 Ethernet interfaces You can set an Ethernet port as a Layer 3 interface by using the port link mode route command see Lay...

Page 375: ...arding table is the solution to this issue When the router creates an IPv6 multicast forwarding entry for an IPv6 multicast packet it sets the RPF interface of the packet as the incoming interface of...

Page 376: ...by hop along the forwarding tree but some routers might not support IPv6 multicast protocols in a network When the IPv6 multicast data is forwarded to a router that does not support IPv6 multicast th...

Page 377: ...cast routing policy Optional Configuring an IPv6 multicast forwarding range Optional Configuring the IPv6 multicast forwarding table size Optional Enabling IPv6 multicast routing Before you configure...

Page 378: ...g you can optimize the traffic delivery when multiple IPv6 multicast data streams are handled Configuring an IPv6 multicast routing policy in public network Step Command Remarks 1 Enter system view sy...

Page 379: ...orwarding table based on the actual networking situation and the performance requirements If the configured upper limit is smaller than the number of existing entries in the IPv6 multicast forwarding...

Page 380: ...lticast data transmission failures To display and maintain IPv6 multicast routing and forwarding Task Command Remarks Display IPv6 multicast boundary information display multicast ipv6 all instance vp...

Page 381: ...erface type interface number register all Available in user view When an IPv6 multicast forwarding entry is removed the associated IPv6 multicast routing entry is also removed Clear routing entries fr...

Page 382: ...roup 1 SwitchA GigabitEthernet1 0 3 quit Create interface Tunnel 0 on Switch A assign an IPv6 address and prefix length to this interface and reference service loopback group 1 on this interface Switc...

Page 383: ...itchA ospfv3 1 SwitchA ospfv3 1 router id 1 1 1 1 SwitchA ospfv3 1 quit SwitchA interface vlan interface 100 SwitchA Vlan interface100 ospfv3 1 area 0 SwitchA Vlan interface100 quit SwitchA interface...

Page 384: ...routing enable SwitchC interface vlan interface 200 SwitchC Vlan interface200 mld enable SwitchC Vlan interface200 pim ipv6 dm SwitchC Vlan interface200 quit SwitchC interface vlan interface 102 Swit...

Page 385: ...s the IPv6 multicast packets but no corresponding S G entry exists in the IPv6 PIM routing table Analysis The multicast ipv6 boundary command filters IPv6 multicast packets received on an interface If...

Page 386: ...MLDv2 can directly implement the SSM model but MLDv1 must work with the MLD SSM mapping function to implement SSM service For more information about the ASM and SSM models see Multicast overview How...

Page 387: ...ter A and Router B have already known that G1 has at least one member on the local subnet other members do not need to report their memberships This mechanism known as the MLD report suppression helps...

Page 388: ...m designated IPv6 multicast sources When a host joins an IPv6 multicast group one of the following situation occurs If it expects IPv6 multicast data from specific IPv6 multicast sources like S1 S2 it...

Page 389: ...r for source recording and so on Receiver host state listening By listening to the state of receiver hosts a multicast router running MLDv2 records and maintains information of hosts joining the sourc...

Page 390: ...ge S Flag indicating whether a router updates the timer for suppression after receiving a query message QRV Querier s Robustness Variable QQIC Querier s Query Interval Code Number of Sources This fiel...

Page 391: ...SSM support for receiver hosts that are running MLDv1 The SSM model assumes that the last hop router has identified the desired IPv6 multicast sources when receivers join IPv6 multicast groups When a...

Page 392: ...on these devices With MLD proxying configured the device serves as a proxy for the downstream hosts to send MLD messages maintain group memberships and implement IPv6 multicast forwarding based on the...

Page 393: ...col IGMP Multicast Listener Discovery MLD Based Multicast Forwarding IGMP MLD Proxying MLD configuration task list For the configuration tasks in this section the following rules apply The configurati...

Page 394: ...r IPv6 multicast group filtering Determine the maximum number of IPv6 multicast groups that an interface can join Enabling MLD Enable MLD on the interface on which IPv6 multicast group memberships wil...

Page 395: ...N A 3 Configure an MLD version globally version version number MLDv1 by default Configuring an MLD version on an interface Step Command Remarks 1 Enter system view system view N A 2 Enter interface v...

Page 396: ...nterface as a packet filter As a result the receive hosts attached to this interface can join only the IPv6 multicast groups that the ACL permits To configure an IPv6 multicast group filter Step Comma...

Page 397: ...bers on the local subnet In this case the Router Alert option carried in the IPv6 multicast packets is useful for the router to determine whether to deliver the IPv6 multicast packets to the upper lay...

Page 398: ...mapping change report The number of queries or the last listener query count equals the robustness variable which is the maximum number of packet retransmissions A multicast listening host starts a ti...

Page 399: ...r query interval 125 seconds by default 7 Configure the maximum response delay for MLD general query messages max response time interval 10 seconds by default 8 Configure the MLD last listener query i...

Page 400: ...ast receiver host is attached to a port of the MLD querier To allow fast response to the MLD done messages of the host when it switches frequently from one IPv6 multicast group to another you can enab...

Page 401: ...king function globally host tracking Disabled by default Enabling the MLD host tracking function on an interface Step Command Remarks 1 Enter system view system view N A 2 Enter interface view interfa...

Page 402: ...SSM mappings By performing this configuration multiple times you can map an IPv6 multicast group to different IPv6 multicast sources If MLDv2 is enabled on a VLAN interface and if an interface in that...

Page 403: ...n a VLAN interface with MLD snooping enabled or vice versa Configuration procedure To enable MLD proxying Step Command Remarks 1 Enter system view system view N A 2 Enter interface view interface inte...

Page 404: ...group ipv6 group address source ipv6 source address begin exclude include regular expression Available in any view The command can display information about the hosts tracked by MLD on Layer 3 interf...

Page 405: ...the hosts that join the group based on MLD SSM mappings on Layer 3 interfaces other than VLAN interfaces Remove the dynamic group entries of a specified MLD group or all MLD groups reset mld all insta...

Page 406: ...meet the following requirements Details not shown The switches are interoperable at the network layer The switches can dynamically update their routing information 3 Enable the IPv6 multicast routing...

Page 407: ...LAN interface 100 can join IPv6 multicast group FF1E 101 only SwitchA acl ipv6 number 2001 SwitchA acl6 basic 2001 rule permit source ff1e 101 128 SwitchA acl6 basic 2001 quit SwitchA interface vlan i...

Page 408: ...interface 200 2001 2 64 Switch D VLAN interface 400 4001 2 64 VLAN interface 101 1002 2 64 VLAN interface 103 3002 2 64 VLAN interface 102 2002 1 64 VLAN interface 104 1003 2 64 Configuration procedu...

Page 409: ...pim ipv6 sm SwitchA Vlan interface104 quit The configuration on Switch B and Switch C is similar to that on Switch A 4 Configure C BSR and C RP interfaces on Switch D SwitchD pim ipv6 SwitchD pim6 c b...

Page 410: ...ace104 Upstream neighbor 1003 1 RPF prime neighbor 1003 1 Downstream interface s information Total number of downstreams 1 1 Vlan interface400 Protocol mld UpTime 00 13 25 Expires 3001 1 FF3E 101 Prot...

Page 411: ...tchA Vlan interface100 mld enable SwitchA Vlan interface100 pim ipv6 dm SwitchA Vlan interface100 quit On Switch B enable IPv6 multicast routing MLD proxying on VLAN interface 100 and MLD on VLAN inte...

Page 412: ...outer will not be able to recognize the MLD report from the host If the mld group policy command has been configured on an interface the interface cannot receive report messages that fail to pass filt...

Page 413: ...D memberships Two MLD versions are available Although routers running different MLD versions are compatible with hosts all routers on the same subnet must run the same MLD version Inconsistent MLD ver...

Page 414: ...ng IPv6 PIM supporting routers is referred to as an IPv6 PIM domain in this document The term interface in this chapter collectively refers to Layer 3 interfaces including VLAN interfaces and Layer 3...

Page 415: ...s created on all routers in the IPv6 PIM DM domain 2 Nodes without downstream receivers are pruned A router that has no downstream receivers sends a prune message to the upstream node The message noti...

Page 416: ...lecting a unique IPv6 multicast forwarder on the multi access network Figure 117 Assert mechanism As shown in Figure 117 after Router A and Router B receive an S G IPv6 multicast packet from the upstr...

Page 417: ...n an IPv6 multicast source sends IPv6 multicast streams to an IPv6 multicast group the source side DR first registers the multicast source with the RP by sending register messages to the RP by unicast...

Page 418: ...the DR works abnormally a timeout in receiving a hello message triggers a new DR election process among the other routers RP discovery The RP is the core of an IPv6 PIM SM domain For a small sized sim...

Page 419: ...owing rules 1 The C RP that is designated to the smallest IPv6 multicast group range wins 2 If the C RPs are designated to the same IPv6 multicast group range the C RP with the highest priority wins 3...

Page 420: ...he IPv6 multicast source side c The IPv6 multicast source sends IPv6 multicast traffic to the IPv6 multicast group d The source side DR resolves the RP address embedded in the IPv6 multicast address a...

Page 421: ...v6 multicast source S sends the first IPv6 multicast packet to IPv6 multicast group G 2 After receiving the multicast packet the DR that directly connects to the multicast source encapsulates the pack...

Page 422: ...receiver side DR initiates a switchover to SPT process After receiving the first IPv6 multicast packet the receiver side DR initiates a switchover to SPT as follows The receiver side DR sends an S G...

Page 423: ...interfaces connected to the RPL can act as RPs which back up one another NOTE In IPv6 BIDIR PIM an RPF interface is the interface pointing to an RP and an RPF neighbor is the address of the next hop...

Page 424: ...these two parts are different Figure 123 RPT building at the receiver side As shown in Figure 123 the process for building a receiver side RPT is similar to that for building an RPT in IPv6 PIM SM 1...

Page 425: ...nd relationship between IPv6 admin scoped zones and the IPv6 global scoped zone Division of IPv6 PIM SM domains Typically an IPv6 PIM SM IPv6 BIDIR PIM domain contains only one BSR which is responsibl...

Page 426: ...the IPv6 global scoped zone and IPv6 admin scoped zones based on geographical locations and the scope field values In view of geographical locations An IPv6 admin scope zone is a logical zone for par...

Page 427: ...ecific multicast It maintains the relationships between hosts and routers through MLDv2 In actual application MLDv2 and part of IPv6 PIM SM technique is adopted to implement the SSM model In the SSM m...

Page 428: ...ath from the DR to the source An SPT is thereby built in the network with the source S as its root and receivers as its leaves This SPT is the transmission channel in IPv6 PIM SSM If the IPv6 group ad...

Page 429: ...ast Dense Mode PIM DM Protocol Specification Revised RFC 4601 Protocol Independent Multicast Sparse Mode PIM SM Protocol Specification Revised RFC 3956 Embedding the Rendezvous Point RP Address in an...

Page 430: ...ally to discover IPv6 PIM neighbors and processes messages from the IPv6 PIM neighbors When you deploy an IPv6 PIM DM domain enable IPv6 PIM DM on all non border interfaces of routers Configuration gu...

Page 431: ...et the waiting timer The hop limit value of a state refresh message decrements by 1 whenever it passes a router before it is forwarded to the downstream node The state refresh message stops being forw...

Page 432: ...M IPv6 PIM SM configuration task list Task Remarks Enabling IPv6 PIM SM Required Configuring an RP Configuring a static RP Required Use any approach Configuring a C RP Enabling embedded RP Configuring...

Page 433: ...he IPv6 ACL rule for register message filtering Determine the register suppression time Determine the register probe time Determine the IPv6 ACL rule and sequencing rule for disabling switchover to SP...

Page 434: ...o enhance the robustness and operation manageability of a multicast network Configuring a static RP If only one dynamic RP exists in a network manually configuring a static RP can avoid communication...

Page 435: ...bedded RP feature is enabled the router can resolve the RP address directly from the IPv6 multicast group address of an IPv6 multicast packets This RP can replace the statically configured RP or the R...

Page 436: ...on the router The BSR election process is as follows Initially every C BSR assumes itself to be the BSR of this IPv6 PIM SM domain and uses its interface IPv6 address as the BSR address to send boots...

Page 437: ...lected RP set information in the form of bootstrap messages to all routers in the IPv6 PIM SM domain An IPv6 PIM domain border is a bootstrap message boundary Each BSR has its specific service scope I...

Page 438: ...1 Enter system view system view N A 2 Enter public network IPv6 PIM view or VPN instance IPv6 PIM view pim ipv6 vpn instance vpn instance name N A 3 Configure the BS period c bsr interval interval Opt...

Page 439: ...ic fragmentation function undo bsm fragment enable By default the BSM semantic fragmentation function is enabled Configuring IPv6 administrative scoping With IPv6 administrative scoping disabled an IP...

Page 440: ...dmin scope zone have preference over the global values If you do not configure these parameters for an IPv6 admin scope zone the corresponding global values are used For configuration of global C BSR...

Page 441: ...ter_suppression_time minus register_probe_time Configure a filtering rule for register messages on all C RP routers and configure them to calculate the checksum based on the entire register messages C...

Page 442: ...bedded RP Configuring C RP timers globally Optional Configuring a BSR Configuring a C BSR Required Configuring an IPv6 BIDIR PIM domain border Optional Configuring the global C BSR parameters Optional...

Page 443: ...non border interfaces of the domain On a router all interfaces must be configured with the same IPv6 PIM mode To enable IPv6 PIM SM Step Command Remarks 1 Enter system view system view N A 2 Enable IP...

Page 444: ...omain you can configure routers that intend to become the RP as C RPs The BSR collects the C RP information by receiving the C RP Adv messages from C RPs or auto RP announcements from other routers an...

Page 445: ...ormation in its bootstrap messages The BSR then floods the bootstrap messages to all IPv6 routers in the network Each C RP encapsulates a timeout value in its C RP Adv messages After receiving a C RP...

Page 446: ...s and discard unwanted messages When an attacker controls a router on the network the attacker can configure the router as a C BSR to win the BSR election Through this router the attacker controls the...

Page 447: ...th Optional 126 by default 4 Configure the C BSR priority c bsr priority priority Optional 64 by default Configuring C BSR timers The BSR election winner multicasts its own IPv6 address and RP Set inf...

Page 448: ...ng of the entire message Generally a BSR performs BSM semantic fragmentation according to the MTU of its BSR interface However the semantic fragmentation of BSMs originated due to learning of a new PI...

Page 449: ...local site local By default no IPv6 multicast forwarding boundary is configured Configuring C BSRs for each admin scope zone In a network with administrative scoping enabled group range specific BSRs...

Page 450: ...ration prerequisites Before you configure IPv6 PIM SSM complete the following tasks Enable IPv6 forwarding and configure an IPv6 unicast routing protocol so that all devices in the domain are interope...

Page 451: ...range Whether the IPv6 PIM SSM model or the IPv6 PIM SM model delivers the information from an IPv6 multicast source depends on whether the group address in the S G packet that the receivers request f...

Page 452: ...forwarding and configure an IPv6 unicast routing protocol so that all devices in the domain are interoperable at the network layer Configure IPv6 PIM DM or IPv6 PIM SM or IPv6 PIM SSM Determine the IP...

Page 453: ...acl6 number No IPv6 multicast data filter by default This filter works not only on independent IPv6 multicast data but also on IPv6 multicast data encapsulated in register messages Configuring a hello...

Page 454: ...multicast data it must send a join message within the prune override interval Otherwise the upstream route will perform the prune action when the period of LAN delay plus override interval times out...

Page 455: ...quire genid By default hello messages without Generation_ID are accepted Configuring the prune delay timer An upstream router on a shared subnet can be configured with a prune delay interval With this...

Page 456: ...g requirements are raised use the default settings Configuring common IPv6 PIM timers globally Step Command Remarks 1 Enter system view system view N A 2 Enter public network IPv6 PIM view or VPN inst...

Page 457: ...n prune message jp queue size queue size Optional 1020 by default IMPORTANT If IPv6 PIM snooping enabled switches are deployed in the IPv6 PIM network be sure to set a value no greater than the IPv6 p...

Page 458: ...M display pim ipv6 all instance vpn instance vpn instance name claimed route ipv6 source address begin exclude include regular expression Available in any view Display the number of IPv6 PIM control m...

Page 459: ...mode mode type flags flag value fsm begin exclude include regular expression Available in any view Display the RP information display pim ipv6 all instance vpn instance vpn instance name rp info ipv6...

Page 460: ...Figure 129 Details not shown 2 Configure OSPFv3 on the switches in the IPv6 PIM DM domain to make sure the switches are interoperable at the network layer Details not shown 3 Enable IPv6 multicast rou...

Page 461: ...Vlan102 1 30 1 FE80 A01 201 4 local Display the IPv6 PIM neighboring relationships on Switch D SwitchD display pim ipv6 neighbor VPN Instance public net Total Number of Neighbors 3 Neighbor Interface...

Page 462: ...ipv6 routing table VPN Instance public net Total 0 G entry 1 S G entry 4001 100 FF0E 101 Protocol pim dm Flag LOC ACT UpTime 00 02 19 Upstream interface Vlan interface300 Upstream neighbor NULL RPF p...

Page 463: ...terface 200 2001 1 64 Switch E VLAN interface 104 3001 2 64 VLAN interface 103 2002 1 64 VLAN interface 103 2002 2 64 Switch C VLAN interface 200 2001 2 64 VLAN interface 102 1003 2 64 VLAN interface...

Page 464: ...0e 101 64 SwitchD acl6 basic 2005 quit SwitchD pim ipv6 SwitchD pim6 c bsr 4002 1 128 10 SwitchD pim6 c rp 4002 1 group policy 2005 SwitchD pim6 quit On Switch E configure the service scope of RP adve...

Page 465: ...val 60 Next advertisement scheduled at 00 00 48 Display information about the BSR and locally configured C RP in effect on Switch E SwitchE display pim ipv6 bsr info VPN Instance public net Elected BS...

Page 466: ...ing table command to display the PIM routing table information on the switches For example Display IPv6 PIM multicast routing table information on Switch A SwitchA display pim ipv6 routing table VPN I...

Page 467: ...e IPv6 PIM SM domain is divided into IPv6 admin scope zone 1 IPv6 admin scope zone 2 and the IPv6 global zone Switch B Switch C and Switch D are ZBRs of these three domains respectively Source 1 and S...

Page 468: ...1 0 3 V l a n i n t 3 0 0 Vlan int106 Vlan int104 Vlan int108 Vlan int107 Vlan int107 Vlan int109 Vlan int109 Vlan int500 V l a n i n t 1 0 5 Vlan int108 Vlan int400 Vlan int110 Vlan int110 Vlan int10...

Page 469: ...ace 106 3004 2 64 Source 2 3001 100 64 Switch I VLAN interface 600 5001 1 64 Source 3 9001 100 64 VLAN interface 110 4001 2 64 Configuration procedure 1 Assign an IPv6 address and prefix length to eac...

Page 470: ...t shown 4 Configure an admin scope zone boundary On Switch B configure VLAN interface 102 and VLAN interface 103 to be the boundary of admin scope zone 1 SwitchB interface vlan interface 102 SwitchB V...

Page 471: ...sr scope global SwitchF pim6 c bsr 8001 1 SwitchF pim6 c rp 8001 1 SwitchF pim6 quit Verifying the configuration Display information about the BSR and locally configured C RP on Switch B SwitchB displ...

Page 472: ...y 64 Hash mask length 126 State Elected Scope 4 Candidate RP 3002 2 Vlan interface104 Priority 192 HoldTime 130 Advertisement Interval 60 Next advertisement scheduled at 00 00 10 Display the BSR infor...

Page 473: ...6 RP 8001 1 Priority 192 HoldTime 130 Uptime 00 03 39 Expires 00 01 51 prefix prefix length FF2E 16 RP 8001 1 Priority 192 HoldTime 130 Uptime 00 03 39 Expires 00 01 51 prefix prefix length FF3E 16 RP...

Page 474: ...e 130 Uptime 00 03 39 Expires 00 01 51 prefix prefix length FF9E 16 RP 8001 1 Priority 192 HoldTime 130 Uptime 00 03 39 Expires 00 01 51 prefix prefix length FFAE 16 RP 8001 1 Priority 192 HoldTime 13...

Page 475: ...ty 192 HoldTime 130 Uptime 00 03 39 Expires 00 01 51 prefix prefix length FF04 16 RP 1002 2 Priority 192 HoldTime 130 Uptime 00 03 39 Expires 00 01 51 prefix prefix length FF14 16 RP 1002 2 Priority 1...

Page 476: ...2 Priority 192 HoldTime 130 Uptime 00 03 39 Expires 00 01 51 prefix prefix length FF74 16 RP 1002 2 Priority 192 HoldTime 130 Uptime 00 03 39 Expires 00 01 51 prefix prefix length FF84 16 RP 1002 2 P...

Page 477: ...130 Uptime 00 03 39 Expires 00 01 51 prefix prefix length FFE4 16 RP 1002 2 Priority 192 HoldTime 130 Uptime 00 03 39 Expires 00 01 51 prefix prefix length FFF4 16 RP 1002 2 Priority 192 HoldTime 130...

Page 478: ...e 130 Uptime 00 03 39 Expires 00 01 51 prefix prefix length FF4E 16 RP 8001 1 Priority 192 HoldTime 130 Uptime 00 03 39 Expires 00 01 51 prefix prefix length FF5E 16 RP 8001 1 Priority 192 HoldTime 13...

Page 479: ...ty 192 HoldTime 130 Uptime 00 03 39 Expires 00 01 51 prefix prefix length FFBE 16 RP 8001 1 Priority 192 HoldTime 130 Uptime 00 03 39 Expires 00 01 51 prefix prefix length FFCE 16 RP 8001 1 Priority 1...

Page 480: ...witch A VLAN interface 100 1001 1 64 Switch D VLAN interface 300 4001 1 64 VLAN interface 101 1002 1 64 VLAN interface 400 5001 1 64 Switch B VLAN interface 200 2001 1 64 VLAN interface 103 3001 2 64...

Page 481: ...IR PIM SwitchB system view SwitchB multicast ipv6 routing enable SwitchB interface vlan interface 200 SwitchB Vlan interface200 mld enable SwitchB Vlan interface200 pim ipv6 sm SwitchB Vlan interface2...

Page 482: ...M domain SwitchC pim6 c bsr 2002 2 SwitchC pim6 c rp 6001 1 bidir SwitchC pim6 quit Verifying the configuration Display DF information of IPv6 BIDIR PIM on Switch A SwitchA display pim ipv6 df info VP...

Page 483: ...fo Multicast DF information of VPN Instance public net Total 1 RP Total 1 RP matched 00001 RP Address 6001 1 MID 0 Flags 0x2100000 0 Uptime 00 08 32 RPF interface Vlan interface101 List of 1 DF interf...

Page 484: ...D 0 Flags 0x2100000 0 Uptime 00 05 12 RPF interface Vlan interface103 List of 2 DF interfaces 1 Vlan interface300 2 Vlan interface400 IPv6 PIM SSM configuration example Network requirements As shown i...

Page 485: ...ng on each switch and assign an IPv6 address and prefix length to each interface according to Figure 133 Details not shown 2 Configure OSPFv3 on the switches in the IPv6 PIM SSM domain to make sure th...

Page 486: ...A display pim ipv6 interface VPN Instance public net Interface NbrCnt HelloInt DR Pri DR Address Vlan100 0 30 1 1001 1 local Vlan101 1 30 1 1002 2 Vlan102 1 30 1 1003 2 Assume that Host A needs to rec...

Page 487: ...nicast route whichever IPv6 PIM mode is running Multicast works only when unicast does IPv6 PIM must be enabled on the RPF interface An RPF neighbor must be an IPv6 PIM neighbor as well If IPv6 PIM is...

Page 488: ...rding boundary settings Use the multicast ipv6 boundary command to change the IPv6 multicast forwarding boundary settings 2 Use the display current configuration command to verify the IPv6 multicast f...

Page 489: ...ormation on all routers is exactly the same a specific group is mapped to the same RP and a unicast route is available to the RP Solution 1 Use the display ipv6 routing table command to verify that ro...

Page 490: ...GP is defined in RFC 2858 Multiprotocol Extensions for BGP 4 The application of MP BGP on IPv6 multicast is called IPv6 Multicast BGP IPv6 MBGP IPv6 MBGP configuration task list Task Remarks Configuri...

Page 491: ...number as number Not configured by default 5 Enter IPv6 MBGP address family view ipv6 family multicast N A 6 Enable the IPv6 MBGP peer peer ipv6 address enable Not enabled by default Configuring a pre...

Page 492: ...owing tasks Enable IPv6 Configure basic IPv6 MBGP Injecting a local IPv6 MBGP route Step Command Remarks 1 Enter system view system view N A 2 Enter BGP view bgp as number N A 3 Enter IPv6 MBGP addres...

Page 493: ...il suppressed origin policy route policy name suppress policy route policy name Not configured by default Advertising a default route to a peer or peer group Step Command Remarks 1 Enter system view s...

Page 494: ...g policy to routes advertised to a peer or a peer group peer ipv6 group name ipv6 address route policy route policy name export Use at least one command By default no filtering is configured You can c...

Page 495: ...pplied in the following sequence 1 filter policy import 2 peer filter policy import 3 peer as path acl import 4 peer ip prefix import 5 peer route policy import A filter policy can only be applied aft...

Page 496: ...ternal preference internal preference local preference route policy route policy name Optional The default preference values of external internal and local routes are 255 255 and 130 respectively Conf...

Page 497: ...specify itself as the next hop of routes sent to the EBGP peers by default To specify the router as the next hop of routes sent to a peer or a peer group Step Command Remarks 1 Enter system view syst...

Page 498: ...p all routes command to save all routes from the peer When the routing policy is changed the system will update the IPv6 MBGP routing table and apply the new policy Performing soft reset through route...

Page 499: ...work resources After you enable the ORF capability the local BGP router negotiates the ORF capability with the BGP peer through open messages That is the router determines whether to carry ORF informa...

Page 500: ...Configuring the maximum number of ECMP routes Step Command Remarks 1 Enter system view system view N A 2 Enter BGP view bgp as number N A 3 Enter IPv6 MBGP address family view ipv6 family multicast N...

Page 501: ...agated among IPv6 MBGP peers and not restricted to AS boundaries You can reference a routing policy to modify the COMMUNITY attribute for routes sent to a peer In addition you can define extended comm...

Page 502: ...name ipv6 address reflect client Not configured by default 5 Enable route reflection between clients reflect between clients Optional Enabled by default 6 Configure the cluster ID of the route reflec...

Page 503: ...play IPv6 MBGP routing information originated from different ASs display bgp ipv6 multicast routing table different origin as begin exclude include regular expression Available in any view Display IPv...

Page 504: ...ss prefix length regexp as path regexp as path acl as path acl number Available in user view IPv6 MBGP configuration example Network requirements As shown in Figure 134 IPv6 PIM SM 1 is in AS 100 and...

Page 505: ...00 quit SwitchA interface vlan interface 101 SwitchA Vlan interface101 pim ipv6 sm SwitchA Vlan interface101 quit Configure Switch B and Switch D in the same way Enable IPv6 multicast routing on Switc...

Page 506: ...gp af ipv6 mul quit SwitchA bgp quit On Switch B configure the IPv6 MBGP peers and redistribute OSPF routes SwitchB ipv6 SwitchB bgp 200 SwitchB bgp router id 2 2 2 2 SwitchB bgp ipv6 family SwitchB b...

Page 507: ...st one x y Asterisk marked square brackets enclose optional syntax choices separated by vertical bars from which you select one choice multiple choices or none 1 n The argument or keyword and argument...

Page 508: ...Represents an access controller a unified wired WLAN module or the access controller engine on a unified wired WLAN switch Represents an access point Represents a wireless terminator unit Represents a...

Page 509: ...provide a mechanism for accessing software updates through the product interface Review your product documentation to identify the recommended software update method To download product updates go to...

Page 510: ...nterprise authorized service provider will determine whether a repair can be accomplished by CSR For more information about CSR contact your local service provider or go to the CSR website www hpe com...

Page 511: ...attributes 483 Configuring IPv6 multicast routing and forwarding 366 Configuring IPv6 PIM snooping 344 Configuring IPv6 PIM DM 417 Configuring IPv6 PIM SM 420 Configuring IPv6 PIM SSM 438 Configuring...

Page 512: ...VLAN configuration task list 61 Multicast VPN configuration examples 267 Multicast VPN configuration task list 260 N Network topology icons 496 O Overview 92 Overview 362 Overview 59 Overview 343 Over...

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