Clear commands for igmp snooping, Clearing the igmp mcache, Clearing the mcache on a specific vlan – Brocade TurboIron 24X Series Configuration Guide User Manual

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Brocade TurboIron 24X Series Configuration Guide

53-1003053-01

Clear commands for IGMP snooping

To display PIM SM snooping information for a specific (source, group) pair, enter a command such
as the following at any level of the CLI.

Syntax: show ip multicast pimsm-snooping <group-address> [<source-ip-address>]

The device determines which address is the <group address> and which one is the <source
address>
based on the ranges that the address fall into. If the address is within the range of source
addresses, then the router treats it as the <source address>. Likewise, if the address falls in the
range of group addresses, then the router assumes it is a <group address>.

The output shows the following information.

Clear commands for IGMP snooping

The clear IGMP snooping commands should be used only in troubleshooting conditions, or to
recover from errors.

Clearing the IGMP mcache

To clear the mcache on all VLANs, enter the following command.

TurboIron#clear ip multicast mcache

Syntax: clear ip multicast mcache

Clearing the mcache on a specific VLAN

To clear the mcache on a specific VLAN, enter the following command.

TurboIron#clear ip multicast vlan 10 mcache

Syntax: clear ip multicast vlan <vlan-id> mcache

Table 0.9:

This field...

Displays...

vlan

The VLAN membership ID of the source.

port

The port on which the source is sending traffic. In this example, the port number is 1.

age

The age of the port, in seconds.

src

The source address and age. The age (number of seconds) is indicated in brackets
immediately following the source.

TurboIron#show ip multicast pimsm-snooping 230.1.1.1

Show pimsm snooping group 230.1.1.1 in all vlans

vlan 10,has 2 caches.

1 (*230.1.1.1) has 1 pim join ports out of 1 OIF

1(age=120)

1 has 1 src:10.20.20.66(120)

TurboIron#show ip multicast pimsm-snooping 230.2.2.2 10.20.20.66

Show pimsm snooping source 10.20.20.66, group 230.2.2.2 in all vlans

vlan 10:(*230.2.2.2) has 1 pim join ports out of 2 OIF

1(age=0)

1 has 1 src:10.20.20.66(0)

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