R21xx-HP FlexFabric 11900 IP Multicast Configuration Guide

42
Task Command
Display multicast
forwarding table
information (in IRF mode).
display multicast forwarding-table [ source-address [ mask { mask-length |
mask } ] | group-address [ mask { mask-length | mask } ] | chassis
chassis-number slot slot-number | incoming-interface interface-type
interface-number | outgoing-interface { exclude | include | match }
interface-type interface-number | statistics ] *
Display information about
the multicast routing table.
display multicast routing-table [ source-address [ mask { mask-length | mask } ]
| group-address [ mask { mask-length | mask } ] | incoming-interface
interface-type interface-number | outgoing-interface { exclude | include |
match } interface-type interface-number ] *
Display information about
the static multicast routing
table.
display multicast routing-table static [ source-address { mask-length | mask } ]
Display RPF route
information about the
multicast source.
display multicast rpf-info source-address [ group-address ]
Clear forwarding entries
from the multicast
forwarding table.
reset multicast 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 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
PIM-DM runs in the network. All switches in the network support multicast. Switch A, Switch B and Switch
C run OSPF. Typically, the receiver host can receive the multicast data from the source through the path:
Switch A to Switch B, which is the same as the unicast route.
Perform the configuration so that the receiver host receives the multicast data from the source through the
path: Switch A to Switch C to Switch B, which is different from the unicast route.