Chapter 47 Configuration Mode Commands
GS-4012F/4024 User’s Guide
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Syntax:
igmp-snooping
igmp-snooping 8021p-priority <0-7>
igmp-snooping host-timeout <1-16711450>
igmp-snooping leave-timeout <1-16711450>
igmp-snooping unknown-multicast-frame <drop|flooding>
igmp-snooping reserved-multicast-group <drop|flooding>
where
An example is shown next.
• Enable IGMP snooping on the Switch.
• Set the host-timeout and leave-timeout values to 30 seconds
• Set the Switch to drop packets from unknown multicast groups.
47.3 Configure IGMP Filter
Use the following commands in the config mode to configure IGMP filtering profiles.
Syntax:
igmp-filtering
igmp-filtering profile <name> start-address <ip> end-address <ip>
igmp-snooping
= Enables IGMP snooping on the Switch.
8021p-priority
= Sets a priority level (0-7) to which the Switch changes the
priority in outgoing IGMP control packets.
host-timeout <1-
16711450>
= Specifies the time out period of the Switch with respect to
IGMP report queries. If an IGMP report for a multicast
group was not received for a host-timeout period, from a
specific port, this port is deleted from the member list of
that multicast group.
leave-timeout <1-
16711450>
= Specifies the time that the Switch will wait for multicast
members to respond to a leave report. If no response
happens in the timeout period, the Switch deletes the port
from the multicast group.
unknown-multicast-
frame <drop|flooding>
= Specifies whether you want to discard packets from
unknown multicast groups or whether you want to forward
them to all ports.
reserved-multicast-
group <drop|flooding>
= Specifies whether you want to discard packets in the
reserved multicast groups or whether you want to forward
them to all ports.
sysname(config)# igmp-snooping
sysname(config)# igmp-snooping host-timeout 30
sysname(config)# igmp-snooping leave-timeout 30
sysname(config)# igmp-snooping unknown-multicast-frame drop
