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9 IGMP Snooping
IGMP snooping is an abbreviation of Internet Group Management Protocol snooping, which
is a multicast constraint mechanism running on Layer 2 devices for managing and
controlling multicast groups. The switch forms the correspondence between the group
member and the switch interface by listening to the host to the IGMP member of the router.
The switch will send the multicast packet to the interface with the group member according
to the corresponding relationship.
Enter the [IGMP Snooping] menu bar. In the IGMP snooping page, you can enable / disable
IGMP snooping, set the IGMP Snooping multicast table, and click Add to add the settings.
Click the Modify button. Set, click the <Delete> button to delete the settings, click the
<Save> button at the bottom of the page to save the configuration.
The interface item is described as follows:
Interface Item
Description
IGMP snooping
function
Select Enable / Disable IGMP Snooping function.
Note: The following parameter settings can be
set only after IGMP Snooping is enabled.
IGMP query
Enable / disable IGMP query function.
IGMP
query
interval
How long to query the existence of multicast
members, 60-1000 seconds.
Group members
survive time
The longest time of multicast member device already
exists to survive from the presence to receive no
response.
Static multicast
Set the MAC address of static multicast
