C
HAPTER
17
| IGMP Commands
– 282 –
igmp leave proxy This command displays or sets IGMP leave proxy for the switch.
SYNTAX
igmp leave proxy [enable | disable]
enable - Enables IGMP leave proxy. If enabled, the switch
suppresses leave messages unless received from the last member
port in the group.
disable - Disables IGMP leave proxy.
DEFAULT SETTING
Disabled
COMMAND USAGE
â—† IGMP leave proxy suppresses all unnecessary IGMP leave messages so
that a non-querier switch forwards an IGMP leave packet only when the
last dynamic member port leaves a multicast group.
â—† The leave-proxy feature does not function when a switch is set as the
querier. When the switch is a non-querier, the receiving port is not the
last dynamic member port in the group, the receiving port is not a
router port, and no IGMPv1 member port exists in the group, the switch
will generate and send a group-specific (GS) query to the member port
which received the leave message, and then start the last member
query timer for that port.
â—† When the conditions in the preceding item all apply, except that the
receiving port is a router port, then the switch will not send a GS-query,
but will immediately start the last member query timer for that port.
EXAMPLE
IGMP>leave proxy enable
IGMP>
igmp throttling This command displays or sets IGMP group throttling for specified ports
SYNTAX
igmp throttling [port-list] [group-limit]
port-list - A specific port or a range of ports. (Range: 1-28, or all)
group-limit - The number of multicast groups to which a port can
belong. (Range: 1-10, or 0 to indicate unlimited)
DEFAULT SETTING
unlimited