Pim-ssm configuration task list, Configuration prerequisites, Enabling pim-sm – H3C Technologies H3C SecPath F1000-E User Manual

Page 648: Configuring the ssm group range

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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 SSM model is implemented based on some subsets of PIM-SM. Therefore, you must enable PIM-SM

before configuring PIM-SSM.
When deploying a PIM-SSM domain, enable PIM-SM on non-border interfaces of the routers.
To enable PIM-SM globally on the public network:

Step

Command

Remarks

1.

Enter system view.

system-view

N/A

2.

Enable IP multicast routing.

multicast routing-enable

Disable by default

3.

Enter interface view.

interface interface-type
interface-number

N/A

4.

Enable PIM-SM.

pim sm

Disabled by default

For more information about the multicast routing-enable command, see Network Management

Command Reference.

Configuring the SSM group range

As for whether the information from a multicast source is delivered to the receivers based on the PIM-SSM

model or the PIM-SM model, this depends on whether the group address in the (S, G) channel subscribed

by the receivers falls in the SSM group range. All PIM-SM-enabled interfaces assume that multicast

groups within this address range are using the PIM-SSM model.
Perform the following configuration on all routers in the PIM-SSM domain.
To configure an SSM multicast group range:

Step

Command

Remarks

1.

Enter system view.

system-view

N/A

2.

Enter public network PIM view.

pim

N/A

3.

Configure the SSM group range.

ssm-policy acl-number

Optional.
232.0.0.0/8 by default.

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