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Disabling the switchover to SPT
CAUTION:
If the switch is an RP, disablin
failures on the
source-side DR. When disabling switchover to SPT, be sure you fully understand its impact on your
network.
If an HP 6125 Blade switch acts as an RP or the receiver-side DR, it initiates a switchover to SPT process
by default upon receiving the first multicast packet along the RPT. You can disable the switchover from RPT
to SPT.
To disable the switchover to SPT:
Ste
Command Remarks
1. Enter system view.
system-view N/A
2. Enter PIM view.
pim N/A
3. Disable the switchover to SPT.
spt-switch-threshold infinity
[ group-policy acl-number
[ order order-value] ]
Optional.
By default, the device switches to the
SPT immediately after it receives the
first multicast packet.
Configuring PIM-SSM
PIM-SSM needs the support of IGMPv3. Be sure to enable IGMPv3 on PIM routers with multicast
receivers.
PIM-SSM configuration task list
Task Remarks
Enabling PIM-SM Required
Configuring the SSM group range Optional
Configuring PIM common features Optional
Configuration prerequisites
Before you configure PIM-SSM, complete the following tasks:
• Configure any unicast routing protocol so that all devices in the domain are interoperable at the
network layer.
• Determine the SSM group range.
Enabling PIM-SM
The implementation of the SSM model is based on some subsets of PIM-SM. Therefore, you must enable
PIM-SM before configuring PIM-SSM.
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