
C
HAPTER
38
| Multicast Filtering Commands
IGMP Snooping
– 908 –
C
OMMAND
U
SAGE
◆
When a multicast host leaves a group, it sends an IGMP leave message.
When the leave message is received by the switch, it checks to see if
this host is the last to leave the group by sending out an IGMP group-
specific or group-and-source-specific query message, and starts a
timer. If no reports are received before the timer expires, the group
record is deleted, and a report is sent to the upstream multicast router.
◆
A reduced value will result in reduced time to detect the loss of the last
member of a group or source, but may generate more bursty traffic.
◆
This command will take effect only if IGMP snooping proxy reporting is
enabled (
E
XAMPLE
Console(config)#ip igmp snooping vlan 1 last-memb-query-intvl 700
Console(config)#
ip igmp snooping
vlan mrd
This command enables sending of multicast router solicitation messages.
Use the
no
form to disable these messages.
S
YNTAX
[
no
]
ip igmp snooping vlan
vlan-id
mrd
vlan-id
- VLAN ID (Range: 1-4093)
D
EFAULT
S
ETTING
Enabled
C
OMMAND
M
ODE
Global Configuration
C
OMMAND
U
SAGE
◆
Multicast Router Discovery (MRD) uses multicast router advertisement,
multicast router solicitation, and multicast router termination messages
to discover multicast routers. Devices send solicitation messages in
order to solicit advertisement messages from multicast routers. These
messages are used to discover multicast routers on a directly attached
link. Solicitation messages are also sent whenever a multicast
forwarding interface is initialized or re-initialized. Upon receiving a
solicitation on an interface with IP multicast forwarding and MRD
enabled, a router will respond with an advertisement.
◆
Advertisements are sent by routers to advertise that IP multicast
forwarding is enabled. These messages are sent unsolicited periodically
on all router interfaces on which multicast forwarding is enabled. They
are sent upon the expiration of a periodic timer, as a part of a router's
start up procedure, during the restart of a multicast forwarding
interface, and on receipt of a solicitation message. When the multicast
services provided to a VLAN is relatively stable, the use of solicitation
Содержание ES3510MA-DC
Страница 1: ...Management Guide www edge core com 8 Port Layer 2 Fast Ethernet Switch...
Страница 2: ......
Страница 4: ......
Страница 6: ...ABOUT THIS GUIDE 6...
Страница 44: ...FIGURES 44...
Страница 50: ...TABLES 50...
Страница 52: ...SECTION I Getting Started 52...
Страница 62: ...CHAPTER 1 Introduction System Defaults 62...
Страница 80: ...CHAPTER 2 Initial Switch Configuration Managing System Files 80...
Страница 82: ...SECTION II Web Configuration 82...
Страница 98: ...CHAPTER 3 Using the Web Interface Navigating the Web Browser Interface 98...
Страница 126: ...CHAPTER 4 Basic Management Tasks Resetting the System 126...
Страница 164: ...CHAPTER 5 Interface Configuration VLAN Trunking 164 Figure 57 Configuring VLAN Trunking...
Страница 202: ...CHAPTER 7 Address Table Settings Configuring MAC Address Mirroring 202...
Страница 452: ...CHAPTER 17 IP Services Displaying the DNS Cache 452...
Страница 498: ...CHAPTER 19 Using the Command Line Interface CLI Command Groups 498...
Страница 588: ...CHAPTER 22 SNMP Commands 588...
Страница 596: ...CHAPTER 23 Remote Monitoring Commands 596...
Страница 650: ...CHAPTER 24 Authentication Commands Management IP Filter 650...
Страница 738: ...CHAPTER 27 Interface Commands 738...
Страница 760: ...CHAPTER 29 Port Mirroring Commands RSPAN Mirroring Commands 760...
Страница 782: ...CHAPTER 32 Address Table Commands 782...
Страница 810: ...CHAPTER 33 Spanning Tree Commands 810...
Страница 862: ...CHAPTER 35 VLAN Commands Configuring Voice VLANs 862...
Страница 876: ...CHAPTER 36 Class of Service Commands Priority Commands Layer 3 and 4 876...
Страница 932: ...CHAPTER 38 Multicast Filtering Commands Multicast VLAN Registration 932...
Страница 956: ...CHAPTER 39 LLDP Commands 956...
Страница 1020: ...CHAPTER 42 Domain Name Service Commands 1020...
Страница 1026: ...CHAPTER 43 DHCP Commands DHCP Client 1026...
Страница 1058: ...CHAPTER 44 IP Interface Commands IPv6 Interface 1058...
Страница 1060: ...SECTION IV Appendices 1060...
Страница 1065: ...APPENDIX A Software Specifications Management Information Bases 1065 Trap RFC 1215 UDP MIB RFC 2013...
Страница 1066: ...APPENDIX A Software Specifications Management Information Bases 1066...
Страница 1088: ...COMMAND LIST 1088...
Страница 1097: ......
Страница 1098: ...ES3510MA DC E122010 ST R01 150200000251A...