Ip Igmp Flood Specific-Query - Allied Telesis AR2050V Command Reference Manual

IGMP IGMP S C
AND NOOPING OMMANDS
-
IP IGMP FLOOD SPECIFIC QUERY

ip igmp flood specific-query

Overview Use this command if you want IGMP to flood specific queries to all VLAN member
ports, instead of only sending the queries to multicast group member ports.
Use the no variant of this command if you want IGMP to only send the queries to
multicast group member ports.
Syntax ip igmp flood specific-query
no ip igmp flood specific-query
Default By default, specific queries are flooded to all VLAN member ports.
Mode Global Configuration
Usage In an L2 switched network running IGMP, it is considered more robust to flood all
specific queries. In most cases, the benefit of flooding specific queries to all VLAN
member ports outweighs the disadvantages.
However, sometimes this is not the case. For example, if hosts with very low CPU
capability receive specific queries for multicast groups they are not members of,
their performance may degrade unacceptably. In this situation, it is desirable for
IGMP to send specific queries to known member ports only. This minimizes the
performance degradation of such hosts. In those circumstances, use this
command to turn off flooding of specific queries.
Example To cause IGMP to flood specific queries only to multicast group member ports, use
the commands:
awplus#
awplus(config)#
Related show ip igmp interface
Commands
C613-50186-01 Rev B
configure terminal
no ip igmp flood specific-query
Command Reference for AR2050V
AlliedWare Plus™ Operating System - Version 5.4.7-1.x
1553