it. This allows the switches to exclude such traffic from the streams sent through
ports to which its consumers are not connected, thereby substantially reducing the
network load.
Basically, to enable IGMP snooping, you only need to turn it on. That is why
the majority of the settings are hidden. To see all the settings, click the button
"Advanced Settings Show"
Figure 5.3.19.2 Advanced IGMP Snooping settings
IGMP Snooping state
– state of IGMP protocol
Send IGMP Query
– Send General Query. (It is possible to disable the
sending of General Query)
Query Interval
– the interval between sending Query messages (1-255
seconds). 60 seconds by default.
Query Response Interval
– the maximum time to wait for a response from the
host to send periodic public queries (1-25 seconds). 10 seconds by default.
Group Membership Interval
– the interval while the router is waiting for an
IGMP Report. If the report was not received, then the router believes that there
are no more hosts on the network that belong to the group (1-255 seconds). 250
seconds by default.
Other Querier Present Interval
– if the switch is Non-Querier, then if it has
not received a Query during this interval, it starts to consider itself a Querier.
255 seconds by default.
