Configuring Mld Snooping Querier; Enabling Mld Snooping Querier - HP 6125G Configuration Manual

To solve these problems, disable that router port from becoming a dynamic router port after the port
receives an MLD general query or IPv6 PIM hello message, so as to improve network security and control
over multicast users.
To disable a port from becoming a dynamic router port:
Step
1. Enter system view.
2. Enter Layer 2 Ethernet
interface view or Layer 2
aggregate interface view.
3. Disable the port from
becoming a dynamic router
port.
NOTE:
This configuration does not affect the static router port configuration.

Configuring MLD snooping querier

Before you configure MLD snooping querier, complete the following tasks:
Enable MLD snooping in the VLAN.
•
• Determine the MLD general query interval.
Determine the MLD last-member query interval.
•
Determine the maximum response time 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 runs MLD, a multicast router or Layer 3 multicast switch sends MLD
queries, so that all Layer 3 multicast devices can establish and maintain multicast forwarding entries, in
order to forward multicast traffic correctly at the network layer. This router or Layer 3 switch is called the
"MLD querier." For more information about MLD querier, see
However, a Layer 2 multicast switch does not support MLD. Therefore, it cannot send MLD general
queries by default. When you enable MLD snooping querier on a Layer 2 switch in a VLAN where
multicast traffic is switched only at Layer 2 and no Layer 3 multicast devices are present, the Layer 2
switch sends MLD queries, so that multicast forwarding entries can be created and maintained at the
data link layer.
IMPORTANT:
It is meaningless to 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.
To enable the MLD snooping querier:
Command
system-view
interface interface-type
interface-number
mld-snooping router-port-deny
[ vlan vlan-list ]
217
Remarks
N/A
Use either command.
By default, a port can become a
dynamic router port.
"Configuring MLD."