Digisol DG-FS4528P, Management Manual

Page: 875 / 973

C
HAPTER
42 | Multicast Filtering Commands
IGMP Filtering and Throttling
– 875 –
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: 0-256)
D
EFAULT
S
ETTING
256
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” as specified by the ip igmp max-groups action command. 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)#
ip igmp max-groups
action
This command sets the IGMP throttling action for an interface on the
switch.
S
YNTAX
ip igmp max-groups action { replace | deny }
replace - The new multicast group replaces an existing group.
deny - The new multicast group join report is dropped.
D
EFAULT
S
ETTING
Deny
C
OMMAND
M
ODE
Interface Configuration (Ethernet)