Technical Documentation

Technical Documentation

MLD for Subscriber Access, Release 10.1

The Multicast Listener Discovery (MLD) Protocol manages the membership of hosts and routers in multicast groups. IP version 6 (IPv6) multicast routers use MLD to learn, for each of their attached physical networks, which groups have interested listeners. Each router maintains a list of host multicast addresses that have listeners for each subnet, as well as a timer for each address. However, the router does not need to know the address of the listeners—just the address of the hosts. The router provides addresses to the multicast routing protocol it uses; this ensures that multicast packets are delivered to all subnets where there are interested listeners. In this way, MLD is used as the transport for the Protocol Independent Multicast (PIM) protocol.

OverviewConfigurationAdministrationTroubleshooting
MLD in Subscriber Access Networks

For general information about MLD, see the JUNOS Multicast Protocols Configuration Guide.

Configuration Overview

Dynamic MLD Configuration Overview

For general information about configuring MLD, see the JUNOS Multicast Protocols Configuration Guide.

Configuration Tasks for MLD

For specific MLD configuration tasks, see the JUNOS Multicast Protocols Configuration Guide. Only the MLD configuration statements listed on this page are available at the [edit dynamic-profiles profile-name protocols mld] hierarchy level.