HP MSR2000/3000/4000 Router Series IP Multicast Configuration Guide

40
Task Command
Clear forwarding entries from
the multicast forwarding table.
reset multicast [ vpn-instance vpn-instance-name ] forwarding-table
{ { source-address [ mask { mask-length | mask } ] | group-address [ mask
{ mask-length | mask } ] | incoming-interface { interface-type
interface-number } } * | all }
Clear routing entries from the
multicast routing table.
reset multicast [ vpn-instance vpn-instance-name ] routing-table
{ { source-address [ mask { mask-length | mask } ] | group-address [ mask
{ mask-length | mask } ] | incoming-interface interface-type
interface-number } * | all }
NOTE:
W
hen a routin
g
entry is removed, the associated forwarding entry is also removed. When a forwardin
g
entry is removed, the associated routing entry is also removed.
Configuration examples
Changing an RPF route
Network requirements
As shown in Figure 18, PIM-DM runs in the network. All routers in the network support multicast. Router
A, Router B, and Router C run OSPF. Typically, the receiver host can receive the multicast data from the
source through the path: Router A to Router B, which is the same as the unicast route.
Perform the configuration so that the receiver host can receive the multicast data from the source through
the path: Router A to Router C to Router B, which is different from the unicast route.
Figure 18 Network diagram
Multicast static route
Router A Router B
Router C
Eth1/3
30.1.1.2/24
Eth1/2
40.1.1.2/24
Eth1/1
50.1.1.1/24
Eth1/2
40.1.1.1/24
Eth1/1
20.1.1.2/24
Eth1/2
20.1.1.1/24
Eth1/3
30.1.1.1/24
Eth1/1
10.1.1.1/24
Source Receiver
50.1.1.100/24 10.1.1.100/24
PIM-DM