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Multicast Filtering
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CLI – This example modifies the settings for multicast filtering, and then displays the
current status.
Displaying Interfaces Attached to a Multicast Router
Multicast routers that are attached to ports on the switch use information obtained
from IGMP, along with a multicast routing protocol such as DVMRP or PIM, to
support IP multicasting across the Internet. These routers may be dynamically
discovered by the switch or statically assigned to an interface on the switch.
You can use the Multicast Router Port Information page to display the ports on this
switch attached to a neighboring multicast router/switch for each VLAN ID.
Command Attributes
• VLAN ID – ID of configured VLAN (1-4094).
• Multicast Router List – Multicast routers dynamically discovered by this switch or
those that are statically assigned to an interface on this switch.
Web – Click IGMP Snooping, Multicast Router Port Information. Select the required
VLAN ID from the scroll-down list to display the associated multicast routers.
Figure 3-83. Displaying Multicast Router Port Information
Console(config)#ip igmp snooping 4-177
Console(config)#ip igmp snooping querier 4-180
Console(config)#ip igmp snooping query-count 10 4-180
Console(config)#ip igmp snooping query-interval 100 4-181
Console(config)#ip igmp snooping query-max-response-time 20 4-182
Console(config)#ip igmp snooping query-time-out 300 4-182
Console(config)#ip igmp snooping version 2 4-178
Console(config)#exit
Console#show ip igmp snooping 4-178
Service status : Enabled
Querier status : Enabled
Query count : 10
Query interval : 100 sec
Query max response time : 20 sec
Router port expire time : 300 sec
IGMP snooping version : Version 2
Console#