Hub/Switch Reference Guide

436 IGMP Snooping Commands
NN47250-100 (Version 02.51)
See Also
• show igmp mrouter on page 426
• show igmp querier on page 427
• show igmp receiver-table on page 429
• show igmp statistics on page 431
show igmp mrouter
Displays the multicast routers in a WSS’s subnet, on one VLAN or all VLANs. Routers are listed separately for each
VLAN, according to the port number through which the switch can reach the router.
Syntax show igmp mrouter [vlan vlan-id]
Defaults None.
Access All.
Examples The following command displays the multicast routers in VLAN orange:
WSS# show igmp mrouter vlan orange
Multicast routers for vlan orange
Port Mrouter-IPaddr Mrouter-MAC Type TTL
---- --------------- ----------------- ----- --------------- ----
10 192.28.7.5 00:01:02:03:04:05 dvmrp 33
Table 64 describes the fields in this display.
TTL Number of seconds before this entry ages out if the WSS does
not receive a query message from the querier.
IGMP vlan member ports Physical ports in the VLAN. This list includes all network ports
configured to be in the VLAN and all ports WSS Software
dynamically assigns to the VLAN when a user assigned to the
VLAN becomes a receiver. For example, the list can include an
AP access port that is not configured to be in the VLAN when a
user associated with the AP on that port becomes a receiver for a
group. When all receivers on a dynamically added port age out,
WSS Software removes the port from the list.
IGMP static ports Static receiver ports.
IGMP statistics Multicast message and packet statistics. These are the same
statistics displayed by the show igmp statistics command.
vlan
vlan-id
VLAN name or number. If you do not specify a VLAN, WSS Software
displays the multicast routers in all VLANs.
Table 1: Output for show igmp (continued)
Field Description