To set the robustness for a specified VRF, enter the following commands.
device(config)# ipv6 router pim vrf blue
device(config-ipv6-pim-router-vrf-blue)# ipv6 mld robustness 3
Syntax: [no] ipv6 router pim [ vrf vrf-name ]
The vrf parameter specifies the virtual routing instance (VRF) specified by the variable vrf-name .

Setting the version

You can use this command to set the MLD version (1 or 2) globally. You can select the version of MLD
by entering a command such as the following.
device(config)# ipv6 mld version 1
Syntax: ipv6 mld version version-number
The version-number variable sets the MLD version. You can specify 1 or 2 for the MLD version.The
default version is 2.
To set the global MLD version for a specified VRF, enter the following commands.
device(config)# ipv6 router pim vrf blue
device(config-ipv6-pim-router-vrf-blue)# ipv6 mld version 1
Syntax: [no] ipv6 router pim [ vrf vrf-name ]
The vrf parameter specifies the virtual routing instance (VRF) specified by the variable vrf-name .
Configuring MLD parameters at the interface level
The following MLD parameters can be configured at the interface level:
Port- version - Specifying a port version on page 200
Static-group - Specifying a static group on page 200
Tracking - Enabling MLD tracking on an interface on page 201
Version - Setting the version on an interface on page 201

Specifying a port version

To set the MLD version on a virtual Ethernet interface, enter the following commands as shown
in the example.
device(config)# interface ve 10
device(config-vif-10)# ipv6 mld port-version 2
Syntax: ipv6 mld port-version version-number
Enter 1 or 2 for version-number . Be sure to enter 2 if you want to use source filtering.

Specifying a static group

A multicast group is usually learned when an MLDv1 report is received. You can configure one or
more static groups without having to receive an MLDv1 report.

Setting the version

200 FastIron Ethernet Switch IP Multicast Configuration Guide
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