Configuring Mld Snooping Querier; Configuration Prerequisites; Enabling Mld Snooping Querier - HP MSR ASM Configuration Manual

Step
3. Disable the port from
becoming a dynamic router
port.

Configuring MLD snooping querier

This section describes how to configure MLD snooping querier.

Configuration prerequisites

Before you configure MLD snooping querier, complete the following tasks:
Enable MLD snooping in the VLAN.
•
Determine the interval for sending MLD general queries.
•
Determine the MLD last-listener query interval.
•
• Determine the maximum response delay for MLD general queries.
Determine the source IPv6 address of MLD general queries.
•
Determine the source IPv6 address of MLD multicast-address-specific queries.
•

Enabling MLD snooping querier

In an IPv6 multicast network that run MLD, a multicast router or Layer 3 multicast switch sends MLD
general queries. This allows all Layer 3 multicast devices can establish and maintain multicast forwarding
entries for forwarding multicast traffic correctly at the network layer. This router or Layer 3 switch is called
the "MLD querier."
However, a Layer 2 multicast switch does not support MLD and it cannot send MLD general queries by
default. When you configure an MLD snooping querier in a network where multicast traffic is only
switched at the data link layer and no Layer 3 multicast devices are present, the Layer 2 switch sends MLD
queries, so that IPv6 multicast forwarding entries can be established and maintained at the data link
layer.
Do not configure an MLD snooping querier in an IPv6 multicast network that runs MLD. Although an MLD
snooping querier does not participate in MLD querier elections, it might affect MLD querier elections
because it sends MLD general queries with a low source IPv6 address. For more information about MLD
querier, see "Configuring MLD."
To enable MLD snooping querier:
Step
1. Enter system view.
2. Enter VLAN view.
3. Enable the MLD snooping
querier.
Command
mld-snooping router-port-deny [ vlan
vlan-list ]
Command
system-view
vlan vlan-id
mld-snooping querier
397
Remarks
By default, a port can
become a dynamic router
port.
This configuration does not
affect the static router port
configuration.
Remarks
N/A
N/A
Disabled by default.