Digisol DG-FS4526E, Руководство по управлению

Страница: 985 / 1162

C
HAPTER
38 | Multicast Filtering Commands
IGMP Filtering and Throttling
– 985 –
C
OMMAND
U
SAGE
The IGMP filtering profile must first be created with the ip igmp profile
command before being able to assign it to an interface.
Only one profile can be assigned to an interface.
A profile can also be assigned to a trunk interface. When ports are
configured as trunk members, the trunk uses the filtering profile
assigned to the first port member in the trunk.
E
XAMPLE
Console(config)#interface ethernet 1/1
Console(config-if)#ip igmp filter 19
Console(config-if)#
ip igmp max-groups
This command sets the IGMP throttling number for an interface on the
switch. Use the no form to restore the default setting.
S
YNTAX
ip igmp max-groups number
no ip igmp max-groups
number - The maximum number of multicast groups an interface
can join at the same time. (Range: 1-255)
D
EFAULT
S
ETTING
255
C
OMMAND
M
ODE
Interface Configuration (Ethernet)
C
OMMAND
U
SAGE
IGMP throttling sets a maximum number of multicast groups that a port
can join at the same time. When the maximum number of groups is
reached on a port, the switch can take one of two actions; either “deny”
or “replace.” If the action is set to deny, any new IGMP join reports will
be dropped. If the action is set to replace, the switch randomly
removes an existing group and replaces it with the new multicast
group.
IGMP throttling can also be set on a trunk interface. When ports are
configured as trunk members, the trunk uses the throttling settings of
the first port member in the trunk.
E
XAMPLE
Console(config)#interface ethernet 1/1
Console(config-if)#ip igmp max-groups 10
Console(config-if)#