H3C Technologies H3C S10500 Series Switches - Manual (Page 102)

87
To do... Use the command... Remarks
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
NOTE:
For more information about designated forwarder (DF), see the chapter “PIM configuration.”
CAUTION:
•
The reset command clears the information in the multicast routing table or the multicast forwarding
table, and thus might cause failure of multicast transmission.
• When a routing entry is deleted from the multicast routing table, the corresponding forwarding entry is
also deleted from the multicast forwarding table.
• When a forwarding entry is deleted from the multicast forwarding table, the corresponding routing
entry is also deleted from the multicast routing table.
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, Receiver can receive the multicast data from Source through the path Switch A – Switch B,
which is the same as the unicast route.
• Perform the following configuration so that Receiver can receive the multicast data from Source
through the path Switch A – Switch C – Switch B, which is different from the unicast route.