3Com S7902E, Configuration Manual

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If MLDv2 is enabled on a VLAN interface, and if a port in that VLAN is configured as a simulated host,
the simulated host will send MLDv2 reports even if you did not specify an IPv6 multicast source when
configuring simulated joining with the mld-snooping host-join command. In this case, the
corresponding IPv6 multicast group will not be created based on the configured MLD SSM mappings.
For details about the mld-snooping host-join command, refer to MLD Snooping Commands in the IP
Multicast Volume .
Configuring MLD Proxying
Configuration Prerequisites
Before configuring the MLD proxying feature, complete the following tasks:
z
Configure any IPv6 unicast routing protocol so that all devices in the domain are interoperable at
the network layer.
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Enable IPv6 multicast routing.
Enabling MLD Proxying
You can enable MLD proxying on the interface in the direction toward the root of the multicast
forwarding tree to make the device serve as an MLD proxy.
Follow these steps to enable MLD proxying:
To do… Use the command… Remarks
Enter system view system-view —
Enter interface view
interface interface-type
interface-number
—
Enable the MLD proxying
feature
mld proxying enable
Required
Disabled by default
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Each device can have only one interface serving as the MLD proxy interface.
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You cannot enable MLD on interfaces with MLD proxying enabled. Moreover, only the mld
require-router-alert , mld send-router-alert , and mld version commands can take effect on such
interfaces.
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You cannot enable other IPv6 multicast routing protocols (such as IPv6 PIM-DM or IPv6 PIM-SM)
on interfaces with MLD proxying enabled, or vice versa. However, the source-lifetime ,
source-policy , and ssm-policy commands configured in IPv6 PIM view can still take effect.
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You cannot enable MLD proxying on a VLAN interface with MLD snooping enabled, or vice versa.