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
◆ 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.
◆ 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.
◆ 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
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