Cisco Catalyst 2960 Series, Configuration Manual

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Purpose Command or Action
to 32,768 thousands of a second. The default is 0. When set to 0,
the global last-listener query interval is used.
Example:
Switch(config)# ipv6 mld snooping vlan 1
last-listener-query-interval 2000
(Optional) Enables topology change notification (TCN) solicitation,
which means that VLANs flood all IPv6 multicast traffic for the
ipv6 mld snooping tcn query solicit
Example:
Switch(config)# ipv6 mld snooping tcn query
solicit
Step 8
configured number of queries before sending multicast data to only
those ports requesting to receive it. The default is for TCN to be
disabled.
(Optional) When TCN is enabled, specifies the number of TCN
queries to be sent. The range is from 1 to 10; the default is 2.
ipv6 mld snooping tcn flood query count count
Example:
Switch(config)# ipv6 mld snooping tcn flood
query count 5
Step 9
Returns to privileged EXEC mode.
end
Step 10
(Optional) Verifies that the MLD snooping querier information for
the switch or for the VLAN. show ipv6 mld snooping querier [ vlan vlan-id ]
Example:
Switch(config)# show ipv6 mld snooping
querier vlan 1
Step 11
Disabling MLD Listener Message Suppression (CLI)
MLD snooping listener message suppression is enabled by default. When it is enabled, the switch forwards
only one MLD report per multicast router query. When message suppression is disabled, multiple MLD reports
could be forwarded to the multicast routers.
Beginning in privileged EXEC mode, follow these steps to disable MLD listener message suppression:
DETAILED STEPS
Purpose Command or Action
Enter global configuration mode. configure terminal
Example:
Switch#
configure terminal
Step 1
Consolidated Platform Configuration Guide, Cisco IOS Release 15.2(4)E (Catalyst 2960-X Switches)
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How to Configure IPv6 MLD Snooping