Chapter 24
| Multicast Filtering Commands
MLD Filtering and Throttling
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ipv6 mld max-groups
action
This command sets the MLD throttling action for an interface on the switch.
Syntax
ipv6 mld max-groups action {deny | replace}
deny - The new multicast group join report is dropped.
replace - The new multicast group replaces an existing group.
Default Setting
Deny
Command Mode
Interface Configuration (Ethernet, Port Channel)
Command Usage
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
MLD 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.
Example
Console(config)#interface ethernet 1/1
Console(config-if)#ipv6 mld max-groups action replace
Console(config-if)#
ipv6 mld query-drop This command drops any received MLD query packets. Use the no form to restore
the default setting.
Syntax
[no] ipv6 mld query-drop
Default Setting
Disabled
Command Mode
Interface Configuration (Ethernet, Port Channel)
Command Usage
This command can be used to drop any query packets received on the specified
interface. If this switch is acting as a Querier, this prevents it from being affected by
messages received from another Querier.
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