Querier Settings; Cli Configuration - Tripp Lite NGI-M08C4POE8-2 Owner's Manual

6.2.1.3 Querier Settings

IGMP Querier
There is normally only one Querier per physical network. All multicast routers start up as a
Querier on each attached network. If a multicast router hears a Query message from a router with
a lower IP address, it MUST become a Non-Querier on that network. If a router has not heard a
Query message from another router for [Other Querier Present Interval], it resumes the role of
Querier. Routers periodically [Query Interval]send a General Query on each attached network
for which this router is the Querier, to solicit membership information. On startup, a router
SHOULD send [Startup Query Count] General Queries spaced closely together [Startup Query
Interval] in order to quickly and reliably determine membership information. A General Query
is addressed to the all-systems multicast group (224.0.0.1), has a Group Address field of 0, and
has a Max Response Time of [Query Response Interval].

6.2.1.3.1 CLI Configuration

Node Command
enable show igmp-snooping
querier
enable configure terminal
configure igmp-snooping
querier (disable |
enable)
configure igmp-snooping
querier vlan
VLANIDs
configure no igmp-snooping
querier vlan
VLANIDs
configure igmp-snooping
query interval <2-
300>
Description
This command displays the current IGMP Queriers.
This command changes the node to configure node.
This command disables / enables the IGMP snooping
querier on the Switch.
This command enables the IGMP snooping querier
function on a VLAN or range of VLANs.
This command disables the IGMP snooping querier
function on a VLAN or range of VLANs.
This command configures the query interval for the
Querier. Unit: second.
79