Cisco IE-4000 Software Configuration Manual page 766

Configuring IPv6 MLD Snooping
Configuring IPv6 MLD Snooping
DETAILED STEPS
Command
1. configure terminal
2. ipv6 mld snooping
robustness-variable value
3. ipv6 mld snooping vlan vlan-id
robustness-variable value
4. ipv6 mld snooping
last-listener-query-count count
5. ipv6 mld snooping vlan vlan-id
last-listener-query-count count
6. ipv6 mld snooping
last-listener-query-interval interval
7. ipv6 mld snooping vlan vlan-id
last-listener-query-interval interval
8. ipv6 mld snooping tcn query solicit
9. ipv6 mld snooping tcn flood query
count count
10. end
11. show ipv6 mld snooping querier
[vlan vlan-id]
12. copy running-config startup-config
EXAMPLE
This example shows how to set the MLD snooping global robustness variable to 3:
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
Table 46-17
Purpose
Enter global configuration mode.
(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.
(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.
(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.
(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.
(Optional) Set the maximum response time that the switch
waits after sending out a MASQ before deleting a port from the
multicast group. The range is 100 to 32,768 thousands of a
second. The default is 1000 (1 second).
(Optional) Set the last-listener query interval on a VLAN basis.
This value overrides the value configured globally. The range
is 0 to 32,768 thousands of a second. The default is 0. When
set to 0, the global last-listener query interval is used.
(Optional) Enable topology change notification (TCN)
solicitation, which means that VLANs flood all IPv6 multicast
traffic for the configured number of queries before sending
multicast data to only those ports requesting to receive it. The
default is for TCN to be disabled.
(Optional) When TCN is enabled, specify the number of TCN
queries to be sent. The range is from 1 to 10; the default is 2.
Return to privileged EXEC mode.
(Optional) Verify that the MLD snooping querier information for
the switch or for the VLAN.
(Optional) Save your entries in the configuration file.
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