Configuring IGMP
Command or Action
Step 4
no ip igmp snooping tcn flood
Example:
Device(config-if)# no ip igmp snooping tcn
flood
Step 5
end
Example:
Device(config)# end
Step 6
show ip igmp snooping
Example:
Device# show ip igmp snooping
Step 7
copy running-config startup-config
Example:
Device# copy running-config startup-config
Configuring the IGMP Snooping Querier (CLI)
Follow these steps to enable the IGMP snooping querier feature in a VLAN:
SUMMARY STEPS
1. enable
2. configure terminal
3. ip igmp snooping querier
4. ip igmp snooping querier address ip_address
5. ip igmp snooping querier query-interval interval-count
6. ip igmp snooping querier tcn query [count count | interval interval]
7. ip igmp snooping querier timer expiry timeout
8. ip igmp snooping querier version version
9. end
10. show ip igmp snooping vlan vlan-id
11. copy running-config startup-config
OL-32598-01
IP Multicast Routing Configuration Guide, Cisco IOS XE Release 3.6E (Catalyst 3850 Switches)
How to Configure IGMP Snooping
Purpose
Disables the flooding of multicast traffic during a
spanning-tree TCN event.
By default, multicast flooding is enabled on an interface.
To re-enable multicast flooding on an interface, use
Note
the ip igmp snooping tcn flood interface
configuration command.
Returns to privileged EXEC mode.
Verifies the TCN settings.
(Optional) Saves your entries in the configuration file.
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