Allied Telesis AR400 - Manual (Page 16)

Page 16 | AlliedWare™ OS How To Note: IGMP
Multiple potential IGMP queriers > Example
Switch 1 is a potential IGMP Querier. It acts as a Snooper if it is not elected as the Querier.
Switch 2 is also a potential IGMP Querier. It acts as a Snooper if not elected as the Querier.
Switch 3 is an IGMP Snooper. It forwards multicast packets and IGMP messages as required.
IGMP snooping is enabled by default and does not need any configuration.
X Configure switch 1
set system name="Switch 1"
# VLAN general configuration
create vlan=vlan100 vid=100
add vlan=100 port=1-52
# IP configuration
enable ip
add ip int=vlan100 ip=172.31.0.254 mask=255.255.255.0
enable ip igmp
enable ip igmp int=vlan100
# STP general configuration
enable stp=default
set stp=default mode=rapid
set stp=default port=1 edgeport=yes
X Configure switch 2
set system name="Switch 2"
# VLAN general configuration
create vlan=vlan100 vid=100
add vlan=100 port=1-26
# IP configuration
enable ip
add ip int=vlan100 ip=172.31.0.253 mask=255.255.255.0
enable ip igmp
enable ip igmp int=vlan100
# STP general configuration
enable stp=default
set stp=default mode=rapid
set stp port=2 edgeport=yes
X Configure switch 3
set system name="Switch 3"
# VLAN general configuration
create vlan=vlan100 vid=100
add vlan=100 port=1-26
# STP general configuration
enable stp=default
set stp=default mode=rapid
set stp port=3 edgeport=yes