Gmrp Ports Configuration - Intellinet 561433 User Manual

Gigabit Ethernet PoE+ Web-Managed AV Switch User Manual
received GMRP traffic to constrain multicasts at Layer 2 in the host's VLAN. In all cases, you can use IGMP
snooping to constrain multicasts at Layer 2 without the need to install or configure software on hosts.
When a host wants to join an IP multicast group, it sends an IGMP join message, which spawns a GMRP join
message. Upon receipt of the GMRP join message, the switch adds the port through which the join message
was received to the appropriate Multicast group. The switch propagates the GMRP join message to all other
hosts in the VLAN, one of which is typically the Multicast source. When the source is multicasting to the group,
the switch forwards the multicast only to the ports from which it received join messages for the group. The
switch sends periodic GMRP queries. If a host wants to remain in a multicast group, it responds to the query. In
this case, the switch does nothing. If a host does not want to remain in the Multicast group, it can either send
a leave message or not respond to the periodic queries from the switch. If the switch receives a leave message
or receives no response from the host for the duration of the leave all timer, the switch removes the host from
the multicast group.
The following image shows the GMRP global configuration page.
Switch

GMRP PORTS CONFIGURATION

The following image shows the GMRP port configuration page. Use this page to enable the GMRP port and
view the port information.
Switch
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