Supermicro SSE-F3548S/SSE-F3548SR Configuration User’s Guide
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step will enable the immediate leave
for all these VLANs.
Step 3 ip igmp snooping fast-leave
Enables the IGMP immediate leave.
Step 4 end
Exits the configuration mode.
Step 5 show ip igmp snooping vlan<vlan>
Displays the IGMP snooping immediate
leave information for the given VLAN.
Step 6 write startup-config
Optional step – saves this IGMP
snooping configuration to be part of
the startup configuration.
The “no ip igmp snooping fast-leave” command can be used to disable the immediate leave
function for any VLAN.
The example below shows the commands used to enable the immediate leave function.
Enable the immediate leave for the VLANs 10 and 20.
SMIS# configure terminal
SMIS(config)# vlan 10,20
SMIS(config-vlan)# ip igmp snooping fast-leave
SMIS(config-vlan)# end
7.6
IGMP Snooping Querier
The IGMP snooping function needs an IGMP router on the network. Simple multicast deployments in
which multicast traffic is switched and not routed may not have IGMP routers on the network. In these
cases, switches will have multicast hosts and sources on the same subnet as shown in the figure below.
Figure IGS-3: Multicast Deployment Without IGMP Routers