H3C Technologies H3C SecPath F1000-E - Manual (Page 922)

897
Configuring MLD
NOTE:
The MLD configuration is available only at the CLI.
Overview
The Multicast Listener Discovery protocol (MLD) is used by an IPv6 router to discover the presence of
multicast listeners on the directly attached subnets. Multicast listeners are nodes wishing to receive IPv6
multicast packets.
Through MLD, the router can learn whether any IPv6 multicast listeners exist on the directly connected
subnets, put corresponding records in the database, and maintain timers related to IPv6 multicast
addresses.
Routers running MLD use an IPv6 unicast link-local address as the source address to send MLD messages.
MLD messages are Internet Control Message Protocol for IPv6 (ICMPv6) messages. All MLD messages
are confined to the local subnet, with a hop count of 1.
The term "router" in this document refers to both routers and firewalls that run IP routing protocols.
MLD configuration task list
Task Remarks
Configuring basic MLD functions
Enabling MLD Required
Configuring the MLD version Option
Configuring static joining Optional
Configuring an IPv6 multicast group filter Optional
Setting the maximum number of IPv6 multicast
groups that an interface can join
Optional
Adjusting MLD performance
Configuring Router-Alert option for MLD
messages
Optional
Configuring MLD query and response
parameters
Optional
Enabling MLD fast-leave processing Optional
Enabling the MLD host tracking function Optional
Configuring MLD SSM mapping
Enabling MLD SSM mapping Optional
Configuring MLD SSM mappings Optional