H3C Technologies H3C S7500E Series Switches - Manual (Page 343)

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To do… Use the command… Remarks
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 ]
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
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
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
z The reset mld group command cannot remove dynamic MLD group entries.
z The reset mld group port-info command cannot remove the Layer 2 port entries of MLD groups.
The reset mld group command cause an interruption of receivers’ reception of multicast data.
MLD Configuration Examples
Basic MLD Functions Configuration Example
Network requirements
z Receivers receive VOD information in the multicast mode. Receivers of different organizations
form stub networks N1 and N2, and Host A and Host C are multicast receivers in N1 and N2
respectively.
z Switch A in the IPv6 PIM network connects to N1, and Switch B and Switch C connect to N2.
z Switch A connects to N1 through VLAN-interface 100, and to other devices in the IPv6 PIM
network through VLAN-interface 101.
z Switch B and Switch C connects to N2 through their own VLAN-interface 200, and to other
devices in the IPv6 PIM network through VLAN-interface 201 and VLAN-interface 202
respectively.