Ipv6 Mld Snooping Tcn - Cisco Catalyst 4500 Series Configuration Manual

Chapter 2

ipv6 mld snooping tcn

To configure IP version 6 (IPv6) Multicast Listener Discovery (MLD) Topology Change Notifications
(TCNs), use the ipv6 mld snooping tcn commands. To reset the default settings, use the no form of the
commands.
Syntax Description
flood query count
integer_value
query solicit
Command Default
TCN query soliciting is disabled.
When enabled, the default flood query count is 2.
Command Modes Global configuration mode
Command History Release
12.2(25)SG
Examples
The following example shows how to enable TCN query soliciting:
Switch# configure terminal
Enter configuration commands, one per line.
Switch(config)# ipv6 mld snooping tcn query solicit.
Switch(config)# end
Switch#
The following example shows how to set the flood query count to 5:
Switch# configure terminal
Enter configuration commands, one per line.
Switch(config)# ipv6 mld snooping tcn flood query count 5.
Switch(config)# end
Switch#
You can verify your settings by entering the show ipv6 MLD snooping [vlan vlan-id] user EXEC
command.
Related Commands Command
show ipv6 mld snooping
ipv6 mld snooping tcn {flood query count integer_value | query solicit}
no ipv6 mld snooping tcn {flood query count integer_value | query solicit}
Sets the flood query count, which is the number of queries that are sent
before forwarding multicast data to only those ports requesting it. The range
is 1 to 10.
Enables soliciting of TCN queries.
Modification
This command was introduced on the Catalyst 4500.
Catalyst 4500 Series Switch Cisco IOS Command Reference—Release XE 3.9.xE and 15.2(5)Ex
End with CNTL/Z.
End with CNTL/Z.
Description
Displays IP version 6 (IPv6) MLD snooping configuration
of the switch or the VLAN.
ipv6 mld snooping tcn
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