
C
HAPTER
15
| Multicast Filtering
Layer 3 IGMP (Query used with Multicast Routing)
– 650 –
C
ONFIGURING
IGMP I
NTERFACE
P
ARAMETERS
Use the Multicast > IGMP > Interface page to configure interface settings
for IGMP.
The switch uses IGMP (Internet Group Management Protocol) to query for
any attached hosts that want to receive a specific multicast service. The
hosts may respond with several types of IP multicast messages. Hosts
respond to queries with report messages that indicate which groups they
want to join or the groups to which they already belong. If a router does
not receive a report message within a specified period of time, it will prune
that interface from the multicast tree. A host can also submit a join
message at any time without waiting for a query from the router. Hosts can
also signal when they no longer want to receive traffic for a specific group
by sending a leave-group message.
If more than one router on the LAN is performing IP multicasting, one of
these is elected as the “querier” and assumes the role of querying for
group members. It then propagates the service request up to any
neighboring multicast router to ensure that it will continue to receive the
multicast service. The parameters described in this section are used to
control Layer 3 IGMP and query functions.
N
OTE
:
IGMP Protocol Status should be enabled on all the interfaces that
need to support downstream multicast hosts (as described in this section).
N
OTE
:
IGMP is disabled when multicast routing is disabled (see
Multicast Routing Globally" on page 828
CLI R
EFERENCES
◆
P
ARAMETERS
These parameters are displayed:
◆
VLAN
– VLAN interface bound to a primary IP address.
(Range: 1-4094)
◆
IGMP Protocol Status
– Enables IGMP (including IGMP query
functions) on a VLAN interface. (Default: Disabled)
When a multicast routing protocol, such as PIM, is enabled, IGMP is
also enabled.
◆
IGMP Version
– Configures the IGMP version used on an interface.
(Options: Version 1-3; Default: Version 2)
◆
Robustness Variable
– Specifies the robustness (or expected packet
loss) for this interface. The robustness value is used in calculating the
appropriate range for other IGMP variables, such as the Group
Membership Interval, as well as the Other Querier Present Interval, and
the Startup Query Count (RFC 2236). (Range: 1-255; Default: 2)
Routers adopt the robustness value from the most recently received
query. If the querier's robustness variable (QRV) is zero, indicating that
Содержание ECS4660-28F
Страница 1: ...Management Guide www edge core com ECS4660 28F Layer 3 Gigabit Ethernet Switch...
Страница 2: ......
Страница 4: ......
Страница 12: ...ABOUT THIS GUIDE 12...
Страница 64: ...CONTENTS 64...
Страница 90: ...TABLES 90...
Страница 92: ...SECTION I Getting Started 92...
Страница 122: ...SECTION II Web Configuration 122 Multicast Routing on page 825...
Страница 148: ...CHAPTER 3 Using the Web Interface Navigating the Web Browser Interface 148...
Страница 224: ...CHAPTER 5 Interface Configuration VLAN Trunking 224 Figure 68 Configuring VLAN Trunking...
Страница 262: ...CHAPTER 6 VLAN Configuration Configuring VLAN Translation 262...
Страница 304: ...CHAPTER 9 Congestion Control Automatic Traffic Control 304...
Страница 340: ...CHAPTER 11 Quality of Service Attaching a Policy Map to a Port 340...
Страница 452: ...CHAPTER 13 Security Measures DHCP Snooping 452...
Страница 740: ...CHAPTER 17 IP Services Configuring the PPPoE Intermediate Agent 740...
Страница 866: ...CHAPTER 21 Multicast Routing Configuring PIMv6 for IPv6 866...
Страница 882: ...CHAPTER 22 Using the Command Line Interface CLI Command Groups 882...
Страница 1024: ...CHAPTER 26 Remote Monitoring Commands 1024...
Страница 1030: ...CHAPTER 27 Flow Sampling Commands 1030...
Страница 1088: ...CHAPTER 28 Authentication Commands PPPoE Intermediate Agent 1088...
Страница 1162: ...CHAPTER 29 General Security Measures Configuring Port based Traffic Segmentation 1162...
Страница 1186: ...CHAPTER 30 Access Control Lists ACL Information 1186...
Страница 1214: ...CHAPTER 31 Interface Commands Transceiver Threshold Configuration 1214...
Страница 1238: ...CHAPTER 33 Port Mirroring Commands RSPAN Mirroring Commands 1238...
Страница 1258: ...CHAPTER 34 Congestion Control Commands Automatic Traffic Control Commands 1258...
Страница 1270: ...CHAPTER 36 UniDirectional Link Detection Commands 1270...
Страница 1276: ...CHAPTER 37 Address Table Commands 1276...
Страница 1336: ...CHAPTER 39 ERPS Commands 1336...
Страница 1386: ...CHAPTER 40 VLAN Commands Configuring Voice VLANs 1386...
Страница 1406: ...CHAPTER 41 Class of Service Commands Priority Commands Layer 3 and 4 1406...
Страница 1424: ...CHAPTER 42 Quality of Service Commands 1424...
Страница 1536: ...CHAPTER 43 Multicast Filtering Commands MLD Proxy Routing 1536...
Страница 1602: ...CHAPTER 45 CFM Commands Delay Measure Operations 1602...
Страница 1624: ...CHAPTER 47 Domain Name Service Commands 1624...
Страница 1646: ...CHAPTER 48 DHCP Commands DHCP Server 1646...
Страница 1974: ...SECTION IV Appendices 1974...
Страница 1980: ...APPENDIX A Software Specifications Management Information Bases 1980...
Страница 2020: ...ECS4660 28F E102013 ST R03 149100000140A...