Chapter 20
| Multicast Filtering Commands
IGMP Snooping
– 471 –
Default Setting
10 (1 second)
Command Mode
Global Configuration
Command Usage
◆
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 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
(
page 461
).
Example
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.
Syntax
[
no
]
ip igmp snooping vlan
vlan-id
mrd
vlan-id
- VLAN ID (Range: 1-4093)
Default Setting
Enabled
Command Mode
Global Configuration
Command Usage
◆
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.
Содержание EX-3524
Страница 2: ......
Страница 28: ...Figures 28 ...
Страница 34: ...Section I Getting Started 34 ...
Страница 58: ...Chapter 1 Initial Switch Configuration Setting the System Clock 58 ...
Страница 72: ...Chapter 2 Using the Command Line Interface CLI Command Groups 72 ...
Страница 156: ...Chapter 5 SNMP Commands Notification Log Commands 156 ...
Страница 164: ...Chapter 6 Remote Monitoring Commands 164 ...
Страница 218: ...Chapter 7 Authentication Commands Management IP Filter 218 ...
Страница 268: ...Chapter 8 General Security Measures Port based Traffic Segmentation 268 ...
Страница 292: ...Chapter 9 Access Control Lists ACL Information 292 ...
Страница 312: ...Chapter 10 Interface Commands Power Savings 312 ...
Страница 324: ...Chapter 11 Link Aggregation Commands Trunk Status Display Commands 324 ...
Страница 366: ...Chapter 15 Address Table Commands 366 ...
Страница 428: ...Chapter 17 VLAN Commands Configuring Voice VLANs 428 ...
Страница 572: ...Chapter 25 IP Interface Commands IPv6 Interface 572 ...
Страница 578: ...Section I Appendices 578 ...
Страница 594: ...Appendix C Customer Support Manuals 594 ...