R3303-HP HSR6800 Routers IP Multicast Configuration Guide

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Task Command Remarks
Display static multicast
MAC address entries.
display mac-address [ mac-address [ vlan vlan-id ] |
[ multicast ] [ vlan vlan-id ] [ count ] ] [ | { begin |
exclude | include } regular-expression ]
Available in any view.
Clear forwarding entries
from the multicast
forwarding table.
reset multicast [ all-instance | vpn-instance
vpn-instance-name ] forwarding-table
{ { source-address [ mask { mask | mask-length } ] |
group-address [ mask { mask | mask-length } ] |
incoming-interface { interface-type interface-number
| register } } * | all }
Available in user view.
When a forwarding
entry is removed from
the multicast forwarding
table, the
corresponding routing
entry is also removed
from the multicast
routing table.
Clear routing entries from
the multicast routing table.
reset multicast [ all-instance | vpn-instance
vpn-instance-name ] routing-table { { source-address
[ mask { mask | mask-length } ] | group-address
[ mask { mask | mask-length } ] | incoming-interface
{ interface-type interface-number | register } } * |
all }
Available in user view.
When a routing entry is
removed from the
multicast routing table,
the corresponding
forwarding entry is also
removed from the
multicast forwarding
table.
Configuration examples
This section provides examples of configuring multicast routing and forwarding.
Changing an RPF route
Network requirements
PIM-DM runs in the network. All routers in the network support multicast. Router A, Router B, and Router
C run OSPF. Typically, Receiver can receive the multicast data from Source through the path Router A to
Router B, which is the same as the unicast route. Receiver can receive the multicast data from Source
through the path: Router A to Router C to Router B, which is different from the unicast route.