Cisco Systems 3560 Manual De Usuario
38-9
Catalyst 3560 Switch Software Configuration Guide
OL-8553-06
Chapter 38 Configuring IPv6 MLD Snooping
Configuring IPv6 MLD Snooping
To disable MLD Immediate Leave on a VLAN, use the no ipv6 mld snooping vlan vlan-id
immediate-leave global configuration command.
immediate-leave global configuration command.
This example shows how to enable MLD Immediate Leave on VLAN 130:
Switch# configure terminal
Switch(config)# ipv6 mld snooping vlan 130 immediate-leave
Switch(config)# exit
Configuring MLD Snooping Queries
When Immediate Leave is not enabled and a port receives an MLD Done message, the switch generates
MASQs on the port and sends them to the IPv6 multicast address for which the Done message was sent.
You can optionally configure the number of MASQs that are sent and the length of time the switch waits
for a response before deleting the port from the multicast group.
MASQs on the port and sends them to the IPv6 multicast address for which the Done message was sent.
You can optionally configure the number of MASQs that are sent and the length of time the switch waits
for a response before deleting the port from the multicast group.
Beginning in privileged EXEC mode, follow these steps to configure MLD snooping query
characteristics for the switch or for a VLAN:
characteristics for the switch or for a VLAN:
Command
Purpose
Step 1
configure terminal
Enter global configuration mode.
Step 2
ipv6 mld snooping vlan vlan-id
immediate-leave
immediate-leave
Enable MLD Immediate Leave on the VLAN interface.
Step 3
end
Return to privileged EXEC mode.
Step 4
show ipv6 mld snooping vlan vlan-id
Verify that Immediate Leave is enabled on the VLAN interface.
Step 5
copy running-config startup-config
(Optional) Save your entries in the configuration file.
Command
Purpose
Step 1
configure terminal
Enter global configuration mode.
Step 2
ipv6 mld snooping robustness-variable
value
value
(Optional) Set the number of queries that are sent before switch will
deletes a listener (port) that does not respond to a general query. The
range is 1 to 3; the default is 2.
deletes a listener (port) that does not respond to a general query. The
range is 1 to 3; the default is 2.
Step 3
ipv6 mld snooping vlan vlan-id
robustness-variable value
robustness-variable value
(Optional) Set the robustness variable on a VLAN basis, which
determines the number of general queries that MLD snooping sends
before aging out a multicast address when there is no MLD report
response. The range is 1 to 3; the default is 0. When set to 0, the number
used is the global robustness variable value.
determines the number of general queries that MLD snooping sends
before aging out a multicast address when there is no MLD report
response. The range is 1 to 3; the default is 0. When set to 0, the number
used is the global robustness variable value.
Step 4
ipv6 mld snooping
last-listener-query-count count
last-listener-query-count count
(Optional) Set the number of MASQs that the switch sends before
aging out an MLD client. The range is 1 to 7; the default is 2. The
queries are sent 1 second apart.
aging out an MLD client. The range is 1 to 7; the default is 2. The
queries are sent 1 second apart.
Step 5
ipv6 mld snooping vlan vlan-id
last-listener-query-count count
last-listener-query-count count
(Optional) Set the last-listener query count on a VLAN basis. This
value overrides the value configured globally. The range is 1 to 7; the
default is 0. When set to 0, the global count value is used. Queries are
sent 1 second apart.
value overrides the value configured globally. The range is 1 to 7; the
default is 0. When set to 0, the global count value is used. Queries are
sent 1 second apart.