Operation Manual - Multicast
Quidway S3500 Series Ethernet Switches Chapter 7 PIM-SM Configuration
Huawei Technologies Proprietary
7-8
7.2.10 Set the Threshold of Switchover from the RPT to the SPT
The PIM-SM router uses the shared tree to forward multicast data packets initially. If the
rate of the multicast data exceeds the threshold, the last hop router the packet passes
will initiate a switch from the shared tree to the shortest path tree.
Perform the following configuration in PIM view.
Table 7-9 Set the threshold of switchover from the RPT to the SPT
Operation Command
Set the threshold of switchover
from the RPT to the SPT
spt-switch-threshold { traffic-rate | infinity }
[ group-policy acl-number ]
Restore the default setting
undo spt-switch-threshold { traffic-rate |
infinity } [ group-policy acl-number ]
By default, the threshold is 0. That is, the last hop router initiates the switch to the
shortest path tree upon the arrival of the first multicast data packet.
7.3 Display and Debug PIM-SM
After the above configuration, execute display command in any view to display the
running of PIM-SM configuration, and to verify the effect of the configuration.
Execute debugging command in user view for the debugging of PIM-SM.
Table 7-10 Display and debug PIM-SM
Operation Command
Display the BSR
information
display pim bsr-info
Display the RP
information
display pim rp-info [ group-address ]
Enable the PIM-SM
debugging
debugging pim sm { all | mbr | verbose | mrt | timer |
warning | { recv | send } { assert | bootstrap | crpadv |
reg | regstop | jp } }
Disable the PIM-SM
debugging
undo debugging pim sm { all | mbr | verbose | mrt |
timer | warning | { recv | send } { assert | bootstrap |
crpadv | reg | regstop | jp } }
7.4 PIM-SM Configuration Example
I. Networking requirements
We assume that the Ethernet switches are reachable from each other in actual
networks.
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