H3C Technologies H3C SecPath F1000-E - Manual (Page 932)

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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.
To enable MLD proxying:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter interface view.
interface interface-type
interface-number
N/A
3. Enable the MLD proxying
feature.
mld proxying enable Disabled by default
NOTE:
•
Each device can have only one interface serving as the MLD proxy interface.
• 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.
• 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.
Configuring IPv6 multicast forwarding on a downstream
interface
Only queriers can forward IPv6 multicast traffic but non-queriers have no forwarding capabilities, to
avoid duplicate multicast flows. It is the same on MLD proxy devices. Only the downstream interfaces
acting as a querier can forward IPv6 multicast traffic to downstream hosts.
However, when a downstream interface of a proxy device fails to win the querier election, you need to
enable IPv6 multicast forwarding on this interface.
To enable IPv6 multicast forwarding on a downstream interface
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter interface view.
interface interface-type
interface-number
N/A
3. Enable IPv6 multicast forwarding
on a non-querier downstream
interface.
mld proxying forwarding Disabled by default