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ssm-policy (IPv4)
Function
The ssm-policy command sets the range of SSM group addresses.
The undo ssm-policy command restores the default configuration.
By default, the range of SSM group addresses is 232.0.0.0/8.
Parameters
| Parameter | Description | Value |
|---|---|---|
| basic-acl-number | Specifies the number of the basic ACL that defines the range of SSM group addresses. | The value is an integer that ranges from 2000 to 2999. |
| acl-name acl-name | Specifies the name of a Named ACL. | The value is a string of 1 to 32 case-sensitive characters without spaces. The value must start with a letter (case sensitive) and can contain numbers, hyphens (-), or underlines (_). |
Usage Guidelines
Usage Scenario
By default, the address of an SSM group ranges from 232.0.0.0 to 232.255.255.255. You can run the ssm-policy command to specify the range of PIM SSM group addresses. All the PIM-SM interfaces consider that PIM SSM is enabled on all the multicast groups in the specified address range. The specified SSM group address range can beyond 232.0.0.0/8.
Prerequisites
IP multicast routing has been enabled using the multicast routing-enable command.
Precautions
This command is valid for only PIM-SM.
Example
# In the PIM view, set the range of PIM SSM multicast addresses to 232.1.0.0/16.
<AC6605> system-view [AC6605] acl number 2000 [AC6605-acl-basic-2000] rule permit source 232.1.0.0 0.0.255.255 [AC6605-acl-basic-2000] quit [AC6605] multicast routing-enable [AC6605] pim [AC6605-pim] ssm-policy 2000
# In the PIM view, configure a Named ACL:
the PIM SSM multicast address range is 232.1.0.0/16.
<AC6605> system-view [AC6605] acl name myacl [AC6605-acl-adv-myacl] rule permit ip destination 232.1.0.0 0.0.255.255 [AC6605-acl-adv-myacl] quit [AC6605] multicast routing-enable [AC6605] pim [AC6605-pim] ssm-policy acl-name myacl
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