Show ip igmp snooping mrouter – Brocade Communications Systems Brocate Ethernet Access Switch 6910 User Manual

Page 517

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Brocade 6910 Ethernet Access Switch Configuration Guide

467

53-1002581-01

Static Multicast Routing

23

Command Usage

Depending on your network connections, IGMP snooping may not always be able to locate the
IGMP querier. Therefore, if the IGMP querier is a known multicast router or switch connected
over the network to an interface (port or trunk) on this switch, that interface can be manually
configured to join all the current multicast groups.

IGMP Snooping must be enabled globally on the switch (using the

ip igmp snooping

command)

before a multicast router port can take effect.

Example

The following shows how to configure port 10 as a multicast router port within VLAN 1.

Console(config)#ip igmp snooping vlan 1 mrouter ethernet 1/10

Console(config)#

show ip igmp snooping mrouter

This command displays information on statically configured and dynamically learned multicast
router ports.

Syntax

show ip igmp snooping mrouter [dynamic | static | vlan vlan-id]

dynamic - Displays dynamically learned multicast router ports.

static - Displays statically configured multicast router ports.

vlan-id - VLAN ID (Range: 1-4093)

Default Setting

Displays multicast router ports for all configured VLANs.

Command Mode

Privileged Exec

Command Usage

Multicast router port types displayed include Static or Dynamic.

Example

The following shows a port discovered by the system which is attached to a multicast router.

Console#show ip igmp snooping mrouter dynamic

VLAN M'cast Router Ports Type Expire

---- ------------------- ------- --------

1 Eth 1/1 Dynamic 00:05:09

Console#

The following shows a port statically configured as attached to a multicast router.

Console#show ip igmp snooping mrouter static

VLAN M'cast Router Ports Type

---- ------------------- -------

1 Eth 1/1 Static

Console#

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