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Chapter 22
Configuring IGMP Snooping and MVR
Beginning in privileged EXEC mode, follow these steps to enable the IGMP snooping querier feature in
a VLAN:
Command
Step 1
configure terminal
Step 2
ip igmp snooping querier
Step 3
ip igmp snooping querier address
ip_address
Step 4
ip igmp snooping querier query-interval
interval-count
Step 5
ip igmp snooping querier tcn query [count
count | interval interval]
Step 6
ip igmp snooping querier timer expiry
timeout
Step 7
ip igmp snooping querier version version
Step 8
end
Step 9
show ip igmp snooping vlan vlan-id
Step 10
copy running-config startup-config
This example shows how to set the IGMP snooping querier source address to 10.0.0.64:
Switch# configure terminal
Switch(config)# ip igmp snooping querier 10.0.0.64
Switch(config)# end
This example shows how to set the IGMP snooping querier maximum response time to 25 seconds:
Switch# configure terminal
Switch(config)# ip igmp snooping querier query-interval 25
Switch(config)# end
This example shows how to set the IGMP snooping querier timeout to 60 seconds:
Switch# configure terminal
Switch(config)# ip igmp snooping querier timeout expiry 60
Switch(config)# end
This example shows how to set the IGMP snooping querier feature to version 2:
Switch# configure terminal
Switch(config)# no ip igmp snooping querier version 2
Switch(config)# end
OL-8915-03
Purpose
Enter global configuration mode.
Enable the IGMP snooping querier.
(Optional) Specify an IP address for the IGMP snooping querier. If
you do not specify an IP address, the querier tries to use the global IP
address configured for the IGMP querier.
The IGMP snooping querier does not generate an IGMP
Note
general query if it cannot find an IP address on the switch.
(Optional) Set the interval between IGMP queriers. The range is 1 to
18000 seconds.
(Optional) Set the time between Topology Change Notification
(TCN) queries. The count range is 1 to 10. The interval range is 1 to
255 seconds.
(Optional) Set the length of time until the IGMP querier expires.The
range is 60 to 300 seconds.
(Optional) Select the IGMP version number that the querier feature
uses. Select 1 or 2.
Return to privileged EXEC mode.
(Optional) Verify that the IGMP snooping querier is enabled on the
VLAN interface. The VLAN ID range is 1 to 1001 and 1006 to 4094.
(Optional) Save your entries in the configuration file.
Cisco Catalyst Blade Switch 3020 for HP Software Configuration Guide
Configuring IGMP Snooping
22-15
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