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IGMP
IGMP Snooping page
IGMP snooping is the process of listening to Internet Group Management Protocol (IGMP) network
traffic. IGMP snooping, as implied by the name, is a feature that allows a network switch to listen to on
the IGMP conversation between hosts and routers. By listening to the conversations between hosts
and routers, the switch maintains a map of links which need IP multicast streams. Multicast streams
may be filtered from the links which do not solicit them. An IGMP-Snooping-disabled layer-2 device
will flood multicast traffic to all the ports in a broadcast domain (or the VLAN equivalent). With IGMP
snooping enabled, known multicast traffic will be forwarded to hosts that have explicitly joined the
group. It provides switches with a mechanism to prune multicast traffic from links that do not contain
a multicast listener (an IGMP client).
State:
Set the enabling status of IGMP Snooping functionality
•
Enable:
If Checked Enable IGMP Snooping, else is
Disabled
IGMP Snooping.
Version:
Set the IGMP snooping version.
•
IGMPv2:
Only support process IGMP v2 packet.
•
IGMPv3:
Support v3 basic and v2.
Report Suppression:
Set the enabling status of IGMP v2 report suppression
•
Enable:
If Checked Enable IGMP Snooping v2 report suppression, else
Disable
the report
suppression function.
VLAN:
The IGMP entry VLAN ID
Operation Status:
The enable status of IGMP snooping VLAN functionality.
Router Port Auto Learn:
The enabling status of IGMP snooping router port auto learning.
Query Robustness:
The Query Robustness allows tuning for the expected packet loss on a subnet.
Query Interval:
The interval of querier to send general query.
