R3303-HP HSR6800 Routers IP Multicast Configuration Guide

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Task Command Remarks
Display MLD SSM mappings.
display mld ssm-mapping ipv6-group-address [ |
{ begin | exclude | include } regular-expression ]
Available in any
view.
Display the IPv6 multicast group
information created based on the
configured MLD SSM mappings.
display mld ssm-mapping group [ ipv6-group-address
| interface interface-type interface-number ] [ verbose ]
[ | { begin | exclude | include } regular-expression ]
Available in any
view.
Display information about the
hosts that join based on the MLD
SSM mappings on an interface.
display mld ssm-mapping host interface interface-type
interface-number group ipv6-group-address source
ipv6-source-address [ | { begin | exclude | include }
regular-expression ]
Available in any
view.
Remove the dynamic group
entries of a specified MLD group
or all MLD groups.
reset mld group { all | interface interface-type
interface-number { all | ipv6-group-address
[ prefix-length ] [ ipv6-source-address
[ prefix-length ] ] } }
Available in user
view.
This command
cannot remove
dynamic MLD
group entries.
Remove the dynamic Layer 2 port
entries of a specified MLD group
or all MLD groups).
reset mld group port-info { all | ipv6-group-address }
[ vlan vlan-id ]
Available in user
view.
This command is
available only
on the routers
that are installed
with the SAP
modules.
This command
cannot remove
the Layer 2 port
entries of MLD
groups.
Clear MLD SSM mappings.
reset mld ssm-mapping group { all | interface
interface-type interface-number { all |
ipv6-group-address [ prefix-length ]
[ ipv6-source-address [ prefix-length ] ] } }
Available in user
view.
MLD configuration examples
This section provides examples of configuring MLD.
Basic MLD functions configuration example
Network requirements
As shown in Figure 85, the receivers receive VOD information in the multicast mode. The receivers of
different organizations form stub networks N1 and N2. Host A and Host C are multicast receivers in N1
and N2, respectively.
MLDv1 runs between Router A and N1. MLDv1 runs between the other two routers (Router B and Router
C) and N2. Router B acts as the MLD querier because it has a lower IPv6 address.