R2511-HP MSR Router Series IP Multicast Configuration Guide(V5)

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Task Command Remarks
Display the multicast group
information created from IGMPv1
and IGMPv2 reports based on the
configured IGMP SSM mappings.
display igmp [ all-instance | vpn-instance
vpn-instance-name ] ssm-mapping group
[ group-address | interface interface-type
interface-number ] [ verbose ] [ | { begin |
exclude | include } regular-expression ]
Available in any view.
Display information about the hosts
that join the group based on IGMP
SSM mappings on an interface.
display igmp ssm-mapping host interface
interface-type interface-number group
group-address source source-address [ |
{ begin | exclude | include }
regular-expression ]
Available in any view.
Remove all the dynamic IGMP
group entries of a specified IGMP
group or all IGMP groups.
reset igmp [ all-instance | vpn-instance
vpn-instance-name ] group { all | interface
interface-type interface-number { all |
group-address [ mask { mask | mask-length } ]
[ source-address [ mask { mask |
mask-length } ] ] } }
Available in user view.
This command cannot
remove static IGMP
group entries.
This command might
cause an interruption of
receivers' reception of
multicast data.
Remove all the dynamic Layer 2
port entries of a specified IGMP
group or all IGMP groups.
reset igmp group port-info { all |
group-address } [ vlan vlan-id ]
Available in user view.
This command cannot
remove the static Layer
2 port entries of IGMP
groups.
Clear IGMP SSM mappings.
reset igmp [ all-instance | vpn-instance
vpn-instance-name ] ssm-mapping group { all
| interface interface-type interface-number
{ all | group-address [ mask { mask |
mask-length } ] [ source-address [ mask { mask
| mask-length } ] ] } }
Available in user view.
IGMP configuration examples
This section provides examples of configuring IGMP on routers.
Basic IGMP functions configuration example
Network requirements
As shown in Figure 15, the receivers receive VOD information through multicast. The receivers of different
organizations form stub networks N1 and N2. Host A and Host C are receivers in N1 and N2,
respectively.
Router A in the PIM network connects to N1, and both Router B and Router C connect to another stub
network, N2.
IGMPv2 runs between Router A and N1, and between the other two routers and N2. Router B acts as the
IGMP querier in N2 because it has a lower IP address.
The hosts in N1 can join only multicast group 224.1.1.1, and the hosts in N2 can join any multicast
groups.