IES-3162GC
User’s Manual
ORing Industrial Networking Corp
56
5.1.11 Multicast
5.1.11.1 IGMP Snooping
Internet Group Management Protocol (IGMP) is used by IP hosts to register their dynamic
multicast group membership. IGMP has 3 versions, IGMP v1, v2 and v3. Please refer to
RFC 1112, 2236 and 3376. IGMP Snooping improves the performance of networks that
carry multicast traffic. It provides the ability to prune multicast traffic so that it travels only to
those end destinations that require that traffic and reduces the amount of traffic on the
Ethernet LAN.
IGMP Snooping interface
The following table describes the labels in this screen.
Label
Description
IGMP Snooping
Enable/Disable IGMP snooping.
IGMP Query Mode
Switch will be IGMP querier or not. There should exist one and
the only one IGMP querier in an IGMP application. The "Auto"
mode means that the querier is the one with lower IP address.
IGMP Snooping Table
Show current IP multicast list
Apply
Click “
Apply
” to activate the configurations.
Help
Show help file.