The c-rp command configures a candidate-rendezvous point (C-RP) on a Router, so that the Router can announce itself as a C-RP to the bootstrap router (BSR).
The undo c-rp command deletes a C-RP.
By default, no C-RP is configured.
| Parameter | Description | Value |
|---|---|---|
| interface-type |
Specifies the type and number of an interface. The IP address of the specified interface is advertised as the C-RP address. To avoid frequent protocol changes caused by interface flapping, using loopback interfaces is recommended. |
- |
| interface-number |
Specifies the type and number of an interface. The IP address of the specified interface is advertised as the C-RP address. To avoid frequent protocol changes caused by interface flapping, using loopback interfaces is recommended. |
- |
| group-policy basic-acl-number |
Specifies the range of multicast groups served by a C-RP. The range is restricted to the multicast groups permitted by a specified ACL. basic-acl-number specifies the number of a basic ACL that defines the service range of the advertised RP. |
The value is an integer ranging from 2000 to 2999. |
| acl-name acl-name |
Specifies the name of a named basic ACL. |
The value is a string of 1 to 64 case-sensitive characters without spaces. The value must start with a letter (a to z or A to Z, case sensitive). |
| priority priority |
Specifies a priority value for a C-RP. A larger value indicates a lower C-RP priority. |
The value is an integer ranging from 0 to 255. The default value is 0. |
| holdtime hold-interval |
Specifies a timeout period during which the BSR waits to receive an Advertisement message from a C-RP. |
The value is an integer ranging from 1 to 65535, in seconds. The default value is 150 seconds. |
| advertisement-interval adv-interval |
Specifies an interval at which a C-RP sends Advertisement messages. |
The value is an integer ranging from 1 to 65535, in seconds. The default value is 60 seconds. |
Usage Scenario
An RP is the core of a PIM-SM network. Therefore, a C-RP must be able to communicate with other devices. It is recommended that you configure a C-RP on the backbone network device and reserve sufficient bandwidth between the device and other devices.
The rules for a C-RP to compete for an RP are as follows:Prerequisites
PIM has been enabled and the public network PIM instance view has been displayed using the pim command.
PIM-SM has been enabled on the interface on which a C-RP is to be configured. To use the groupPolicyValue the parameter, an ACL rule has been configured.Configuration Impact
If the c-rp command is run more than once, the latest configuration overrides the previous one.
NOTE: If address borrowing is configured, configuring a C-RP on interfaces that have the same addresses is not recommended. If the priorities of such interfaces are different, the BSR considers that the C-RP configuration is repeatedly modified.<HUAWEI> system-view [~HUAWEI] multicast routing-enable [*HUAWEI] acl number 2069 [*HUAWEI-acl4-basic-2069] rule permit source 225.1.0.0 0.0.255.255 [*HUAWEI-acl4-basic-2069] rule permit source 226.2.0.0 0.0.255.255 [*HUAWEI-acl4-basic-2069] quit [*HUAWEI] pim [*HUAWEI-pim] c-rp GigabitEthernet 0/1/0 group-policy 2069 priority 10