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Cisco Catalyst 4500 Series Software Configuration Guide

Cisco Catalyst 4500 Series
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29-10
Catalyst 4500 Series Switch, Cisco IOS Software Configuration Guide - Cisco IOS XE 3.9.xE and IOS 15.2(5)Ex
Chapter 29 Configuring IPv6 Multicast Listener Discovery Snooping
Displaying MLD Snooping Information
Switch# configure terminal
Switch(config)# ipv6 mld snooping robustness-variable 3
Switch(config)# exit
This example shows how to set the MLD snooping last-listener query count for a VLAN to 3:
Switch# configure terminal
Switch(config)# ipv6 mld snooping vlan 200 last-listener-query-count 3
Switch(config)# exit
This example shows how to set the MLD snooping last-listener query interval (maximum response time)
to 2000 (2 seconds):
Switch# configure terminal
Switch(config)# ipv6 mld snooping last-listener-query-interval 2000
Switch(config)# exit
Disabling MLD Listener Message Suppression
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.
To disable MLD listener message suppression, perform this task:
To reenable MLD message suppression, use the ipv6 mld snooping listener-message-suppression
global configuration command.
Displaying MLD Snooping Information
You can display MLD snooping information for dynamically learned and statically configured router
ports and VLAN interfaces. You can also display MAC address multicast entries for a VLAN configured
for MLD snooping.
To display MLD snooping information, use one or more of the privileged EXEC commands in
Table 29-2.
Command Purpose
Step 1
Switch# configure terminal
Enters global configuration mode.
Step 2
Switch(config)# no ipv6 mld snooping
listener-message-suppression
Disables MLD message suppression.
Step 3
Switch(config)# end
Returns to privileged EXEC mode.
Step 4
Switch# show ipv6 mld snooping
Verifies that IPv6 MLD snooping report suppression is
disabled.
Step 5
Switch# copy running-config startup-config
(Optional) Saves your entries in the configuration file.

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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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