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Chapter 22
Configuring IGMP Snooping and MVR
Beginning in privileged EXEC mode, follow these steps to configure the throttling action when the
maximum number of entries is in the forwarding table:
Command
Step 1
configure terminal
Step 2
interface interface-id
Step 3
ip igmp max-groups action {deny |
replace}
Step 4
end
Step 5
show running-config interface
interface-id
Step 6
copy running-config startup-config
To return to the default action of dropping the report, use the no ip igmp max-groups action interface
configuration command.
Displaying IGMP Filtering and Throttling Configuration
You can display IGMP profile characteristics, and you can display the IGMP profile and maximum group
configuration for all interfaces on the switch or for a specified interface. You can also display the IGMP
throttling configuration for all interfaces on the switch or for a specified interface.
Use the privileged EXEC commands in
configuration:
Table 22-8
Commands for Displaying IGMP Filtering and Throttling Configuration
Command
show ip igmp profile [profile
number]
show running-config [interface
interface-id]
OL-8915-03
Purpose
Enter global configuration mode.
Specify the physical interface to be configured, and enter interface
configuration mode. The interface can be a Layer 2 port that does not
belong to an EtherChannel group or an EtherChannel interface. The
interface cannot be a trunk port.
When an interface receives an IGMP report and the maximum number
of entries is in the forwarding table, specify the action that the interface
takes:
•
deny—Drop the report.
replace—Replace the existing group with the new group for which
•
the IGMP report was received.
Return to privileged EXEC mode.
Verify the configuration.
(Optional) Save your entries in the configuration file.
Table 22-8
Purpose
Displays the specified IGMP profile or all the IGMP profiles defined on the switch.
Displays the configuration of the specified interface or the configuration of all interfaces
on the switch, including (if configured) the maximum number of IGMP groups to which
an interface can belong and the IGMP profile applied to the interface.
Cisco Catalyst Blade Switch 3020 for HP Software Configuration Guide
Displaying IGMP Filtering and Throttling Configuration
to display IGMP filtering and throttling
22-29
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Troubleshooting
