Ipv6 mld snooping last-listener-query-interval – Dell POWEREDGE M1000E User Manual

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Cisco Catalyst Blade Switch 3130 and 3032 for Dell Command Reference

OL-13271-03

Chapter 2 Cisco Catalyst Blade Switch 3130 and 3032 for Dell Cisco IOS Commands

ipv6 mld snooping last-listener-query-interval

ipv6 mld snooping last-listener-query-interval

Use the ipv6 mld snooping last-listener-query-interval global configuration command on the switch
stack or on a standalone switch to configure IP version 6 (IPv6) Multicast Listener Discovery (MLD)
snooping last-listener query interval on the switch or on a VLAN. This time interval is the maximum
time that a multicast router waits after issuing a Mulitcast Address Specific Query (MASQ) before
deleting a port from the multicast group. Use the no form of this command to reset the query time to the
default settings.

ipv6 mld snooping [vlan vlan-id] last-listener-query-interval integer_value

no ipv6 mld snooping [vlan vlan-id] last-listener-query-interval

Note

This command is supported only if you have configured a dual IPv4 and IPv6 Switch Database
Management (SDM) template on the switch.

Syntax Description

Command Default

The default global query interval (maximum response time) is 1000 (1 second).

The default VLAN query interval (maximum response time) is 0 (the global count is used).

Command Modes

Global configuration

Command History

Usage Guidelines

To configure the dual IPv4 and IPv6 template, enter the sdm prefer dual-ipv4-and-ipv6 {default | vlan)
global configuration command and reload the switch.

In MLD snooping, when the IPv6 multicast router receives an MLD leave message, it sends out queries
to hosts belonging to the multicast group. If there are no responses from a port to a MASQ for a length
of time, the router deletes the port from the membership database of the multicast address. The last
listener query interval is the maximum time that the router waits before deleting a nonresponsive port
from the multicast group.

When a VLAN query interval is set, this overrides the global query interval. When the VLAN interval
is set at 0, the global value is used.

VLAN numbers 1002 through 1005 are reserved for Token Ring and FDDI VLANs and cannot be used
in MLD snooping.

vlan vlan-id

(Optional) Configure last-listener query interval on the specified VLAN. The
VLAN ID range is 1 to 1001 and 1006 to 4094.

integer_value

Set the time period (in thousands of a second) that a multicast router to wait
after issuing a MASQ before deleting a port from the multicast group. The
range is 100 to 32,768. The default is 1000 (1 second),

Release

Modification

12.2(40)EX1

This command was introduced.

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