H3C Technologies H3C S12500-X Series Switches - Manual (Page 90)

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Step Command Remarks
1. Enter system view. system-view N/A
2. Enter PIM view.
pim [ vpn-instance
vpn-instance-name ]
N/A
3. Configure the criteria for
triggering a switchover to SPT.
spt-switch-threshold { immediacy |
infinity } [ group-policy
acl-number ]
By default, the device immediately
triggers a switchover to SPT after
receiving the first multicast packet.
Configuring PIM-SSM
PIM-SSM requires IGMPv3 support. Enable IGMPv3 on PIM routers that connect to multicast receivers.
PIM-SSM configuration task list
Task Remarks
Enabling PIM-SM Required.
Configuring the SSM group range Optional.
Configuring common PIM features Optional.
Configuration prerequisites
Before you configure PIM-SSM, configure a unicast routing protocol so that all devices in the domain are
interoperable at the network layer.
Enabling PIM-SM
The implementation of the SSM model is based on subsets of PIM-SM. Therefore, you must enable
PIM-SM before configuring PIM-SSM.
When you deploy a PIM-SSM domain, enable PIM-SM on non-border interfaces of the routers.
IMPORTANT:
All the interfaces on a device must be enabled with the same PIM mode.
To enable PIM-SM:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enable IP multicast routing,
and enter MRIB view.
multicast routing [ vpn-instance
vpn-instance-name ] By default, IP multicast routing is
disabled.
3. Return to system view. quit N/A
4. Enter interface view.
interface interface-type
interface-number
N/A