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Cisco Catalyst 4500 Series Command Reference Guide

Cisco Catalyst 4500 Series
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Catalyst 4500 Series Switch Cisco IOS Command Reference—Release IOS XE 3.4.0SG and IOS 15.1(2)SG)
OL-27596 -01
Chapter 2 Cisco IOS Commands for the Catalyst 4500 Series Switches
ipv6 mld snooping listener-message-suppression
ipv6 mld snooping listener-message-suppression
To enable IP version 6 (IPv6) Multicast Listener Discovery (MLD) snooping listener message
suppression, use the ipv6 mld snooping listener-message-suppression command. To disable MLD
snooping listener message suppression, use the no form of this command.
ipv6 mld snooping listener-message-suppression
no ipv6 mld snooping listener-message-suppression
Command Default The default is for MLD snooping listener message suppression to be disabled.
Command Modes Global configuration mode
Command History
Usage Guidelines MLD snooping listener message suppression is equivalent to IGMP snooping report suppression. When
it is enabled, received MLDv1 reports to a group are forwarded to IPv6 multicast switchs only once in
every report-forward time. This prevents the forwarding of duplicate reports.
Examples This example shows how to enable MLD snooping listener message suppression:
Switch# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Switch(config)# ipv6 mld snooping listener-message-suppression
Switch(config)# end
Switch#
This example shows how to disable MLD snooping listener message suppression:
Switch# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Switch(config)# no ipv6 mld snooping listener-message-suppression
Switch(config)# end
Switch#
You can verify your settings by entering the show ipv6 mld snooping [vlan vlan-id] user EXEC
command.
Related Commands
Release Modification
12.2(40)SG This command was introduced on the Catalyst 4500.
Command Description
ipv6 mld snooping Enables IP version 6 (IPv6) Multicast Listener Discovery
(MLD) snooping globally or on the specified VLAN.
show ipv6 mld snooping Displays IP version 6 (IPv6) MLD snooping configuration
of the switch or the VLAN.

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Cisco Catalyst 4500 Series Specifications

General IconGeneral
SeriesCatalyst 4500 Series
CategorySwitch
Layer SupportLayer 2, Layer 3
Form FactorModular chassis
StackableNo
Chassis Slots3, 6, 7, 10
Power Supply OptionsAC, DC
RedundancyPower supply, Supervisor engine
Network ManagementCisco IOS Software CLI, SNMP, Cisco Prime Infrastructure
FeaturesSecurity, QoS
Port DensityUp to 384 ports per chassis
Security Features802.1X, ACLs, DHCP Snooping, Dynamic ARP Inspection, IP Source Guard
Supervisor Engine8-E

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