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Alteon OS Application Guide
Chapter 10: IGMP
16342C4911, January 2007
IGMP Snooping Configuration Example
This section provides steps to configure IGMP Snooping on the GbESM, using the Command-
Line Interface (CLI).
Configure IGMP Snooping
1. Configure port and VLAN membership on the switch.
2. Turn on IGMP.
3. Add VLANs to IGMP Snooping and enable the feature.
4. Apply and save the configuration.
5. View dynamic IGMP information.
>> /cfg/l3/igmp/on (Turn on IGMP)
>> /cfg/l3/igmp/snoop (Access IGMP Snoop menu)
>> IGMP Snoop# add 1 (Add VLAN 1 to IGMP snooping)
>> IGMP Snoop# ena (Enable IGMP Snooping)
>> IGMP Snoop# apply (Apply the configuration)
>> IGMP Snoop# save (Save your changes)
>> /info/l3/igmp (Select IGMP information menu)
>> IGMP Multicast Group# dump (Show IGMP Group information)
>> IGMP Multicast# dump
Note: Local groups (224.0.0.x) are not snooped and will not appear.
Group VLAN Port Version Expires
--------------- ------ ------- -------- ----------
238.1.0.0 1 EXT1 V2 4:17
238.1.0.4 1 EXT1 V2 4:18
>> /info/l3/igmp/mrouter (Select Mrouter information menu)
>> Mrouter# dump (Show IGMP Group information)
>> IGMP Multicast Router# dump
VLAN Port Version Expires Max Query Resp. Time
------- ------- --------- -------- -----------------------
1 EXT4 V2 static unknown