Configuring Ipv6 Multicast Forwarding On A Downstream Interface; Displaying And Maintaining Mld Configuration - HP A6600 Configuration Manual

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 do...
1. Enter system view.
2. Enter interface view.
3. Enable IPv6 multicast forwarding
on a non-querier downstream
interface.
On a multi-access network with more than one MLD proxy devices, you cannot enable IPv6 multicast
forwarding on any other non-querier downstream interface after one of the downstream interfaces of
these MLD proxy devices has been elected as the querier. Otherwise, duplicate multicast flows might be
received on the multi-access network.

Displaying and maintaining MLD configuration

The reset mld group command can cause an interruption of receiver reception of multicast data.
To do...
Display MLD group information.
Display Layer 2 port information
about MLD groups (on a
distributed device).
Display information about the
hosts tracked by MLD on an
interface.
Display information about the
hosts tracked by MLD on the
Layer 2 ports (on a centralized
device).
Use the command...
system-view
interface interface-type
interface-number
mld proxying forwarding
Use the command...
display mld group [ ipv6-group-address | interface
interface-type interface-number ] [ static | verbose ] [ |
{ begin | exclude | include } regular-expression ]
display mld group port-info [ vlan vlan-id ] [ slot
slot-number ] [ verbose ] [ | { begin | exclude | include }
regular-expression ]
display mld host interface interface-type interface-number
group ipv6-group-address [ source ipv6-source-address ]
[ | { begin | exclude | include } regular-expression ]
display mld host port-info vlan vlan-id group
ipv6-group-address [ source ipv6-source-address ] [ |
{ begin | exclude | include } regular-expression ]
287
Remarks
—
—
Required.
Disabled by default.
Remarks
Available in
any view
Available in
any view.
Available in
any view.
Available in
any view.