Allied Telesis AT-S63 - Manual (Page 228)

Chapter 20: Internet Group Management Protocol Snooping Querier
228 Section III: Snooping Protocols
Figure 25. IGMP Snooping Querier Example 1
The next example adds a second switch that has the same VLAN, the
Default VLAN. IGMP snooping is enabled on the switch so that it can build
its list of nodes for the multicast group. Since a LAN can have just one
querier, IGMP snooping querier is not enabled on switch 2, making a
routing interface unnecessary.
Multicast source:
IP address:
149.123.48.1
Switch 1:
VLAN: Default_VLAN
VID: 1
IGMP snooping: Enabled
IGMP snooping querier: Enabled
Routing interface address: 149.123.48 .2
Host nodes:
IP addresses:
149.123.48.3 to 149.123.48.24