Cisco Catalyst 4500 Series Command Reference Guide

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Catalyst 4500 Series Switch Cisco IOS Command Reference—Release IOS XE 3.4.0SG and IOS 15.1(2)SG)
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Chapter 2 Cisco IOS Commands for the Catalyst 4500 Series Switches
ipv6 mld snooping
ipv6 mld snooping
To enable IP version 6 (IPv6) Multicast Listener Discovery (MLD) snooping globally or on the specified
VLAN, use the ipv6 mld snooping command without keywords. To disable MLD snooping on a switch
or the VLAN, use the no form of this command.
ipv6 mld snooping [vlan vlan-id]
no ipv6 mld snooping [vlan vlan-id]
Syntax Description
Defaults MLD snooping is globally disabled on the switch.
MLD snooping is enabled on all VLANs. However, MLD snooping must be globally enabled before
VLAN snooping can take place.
Command Modes Global configuration mode
Command History
Usage Guidelines When MLD snooping is globally disabled, it is disabled on all the existing VLAN interfaces. When you
globally enable MLD snooping, it is enabled on all VLAN interfaces that are in the default state
(enabled). VLAN configuration overrides global configuration on interfaces on which MLD snooping
has been disabled.
If MLD snooping is globally disabled, you cannot enable it on a VLAN. If MLD snooping is globally
enabled, you can disable it on individual VLANs.
VLAN numbers 1002 through 1005 are reserved for Token Ring and FDDI VLANs and cannot be used
in MLD snooping.
Examples This example shows how to globally enable MLD snooping:
Switch# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Switch(config)# ipv6 mld snooping
Switch(config)# end
Switch#
vlan vlan-id (Optional) Enables or disables IPv6 MLD snooping on the specified VLAN.
The VLAN ID range is 1 to 1001 and 1006 to 4094.
Release Modification
12.2(40)SG This command was introduced on the Catalyst 4500.

Cisco Catalyst 4500 Series Specifications

General

Series	Catalyst 4500 Series
Category	Switch
Layer Support	Layer 2, Layer 3
Form Factor	Modular chassis
Stackable	No
Chassis Slots	3, 6, 7, 10
Power Supply Options	AC, DC
Redundancy	Power supply, Supervisor engine
Network Management	Cisco IOS Software CLI, SNMP, Cisco Prime Infrastructure
Features	Security, QoS
Port Density	Up to 384 ports per chassis
Security Features	802.1X, ACLs, DHCP Snooping, Dynamic ARP Inspection, IP Source Guard
Supervisor Engine	8-E