Modifying the MLD Version

By default, the router supports MLD version 1 (MLDv1). To enable the router to use MLD version 2 (MLDv2) for source-specific multicast (SSM) only, include the version 2 statement.

If you configure the MLD version setting at the individual interface hierarchy level, it overrides configuring the IGMP version using the interface all statement.

If a source address is specified in a multicast group that is statically configured, the version must be set to MLDv2.

To change an MLD interface to version 2:

1. Configure the MLD interface.
   [edit]user@host# edit protocols mlduser@host# set interface fe-0/0/0.0 version 2
2. Verify the configuration by checking the version field in the output of the show mld interface command. The show mld statistics command has version-specific output fields, such as the counters in the MLD Message type field.

Related Topics

• MLD Overview
• Source-Specific Multicast Groups Overview
• Example: Configuring Source-Specific Multicast Groups with Any-Source Override
• Example: Configuring an SSM-Only Domain
• Example: Configuring PIM SSM on a Network
• Example: Configuring SSM Mapping
• RFC2710 - Multicast Listener Discovery (MLD) for IPv6
• RFC3810–Multicast Listener Discovery Version 2 (MLDv2) for IPv6