Brocade 6910 Ethernet Access Switch Configuration Guide (Supporting R2.2.0.0) - Manual (Page 523)

Brocade 6910 Ethernet Access Switch Configuration Guide 467
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IGMP Filtering and Throttling
Command Usage
• 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.
Example
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.
Syntax
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: 1-1023)
Default Setting
1023
Command Mode
Interface Configuration (Ethernet)
Command Usage
• 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.
Example
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.
Syntax
ip igmp max-groups action {deny | replace}