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3 configure igmp filter – ZyXEL Communications GS-2724 User Manual

Page 270

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Chapter 40 Configuration Mode Commands

GS-2724 User’s Guide

270

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
igmp-snooping reserved-multicast-group

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.

40.3 Configure IGMP Filter

Use the following commands in the config mode to configure IGMP filtering profiles.
Syntax:

igmp-filtering
igmp-filtering profile start-address end-address

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

= Specifies whether you want to discard packets from

unknown multicast groups or whether you want to forward
them to all ports.

reserved-multicast-
group

= 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