Cisco Catalyst 4500 Series Command Reference Guide

2-375
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 robustness-variable
Examples This example shows how to configure the global robustness variable so that the switch sends out three
queries before it deletes a listener port that does not respond:
Switch# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Switch(config)# ipv6 mld snooping robustness-variable 3
Switch(config)# end
Switch#
This example shows how to configure the robustness variable for VLAN 1. This value overrides the
global configuration for the VLAN:
Switch# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Switch(config)# ipv6 mld snooping vlan 1 robustness-variable 1
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 Description
ipv6 mld snooping
last-listener-query-count
Configures IP version 6 (IPv6) Multicast Listener
Discovery Mulitcast Address Specific Queries (MASQs)
that will be sent before aging out a client.
show ipv6 mld snooping Displays IP version 6 (IPv6) MLD snooping configuration
of the switch or the VLAN.

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