3-3
group-policy: Defines a group range to be served by the specified interface after it becomes the RP.
acl-number: Basic ACL number, in the range of 2,000 to 2,999. Used together with the group-policy
keyword, this argument defines the group range mentioned above.
priority priority-value: C-RP priority, in the range of 0 to 255, 0 by default. A greater value means a
lower priority.
all: Removes all C-RPs configured.
Description
Use the c-rp command to configure an interface as a C-RP.
Use the undo c-rp command to remove the configuration.
By default, no C-RP is configured.
For the configuration of a C-RP, a relatively large bandwidth should be reserved for the switch and other
devices in the PIM domain.
Related commands: c-bsr.
Examples
# Configure VLAN-interface 10 of the switch as a C-RP, which will serve multicast groups 225.0.0.0 to
225.255.255.255 after it wins RP election.
<Sysname> system-view
System View: return to User View with Ctrl+Z.
[Sysname] multicast routing-enable
[Sysname] acl number 2000
[Sysname-acl-basic-2000] rule permit source 225.0.0.0 0.255.255.255
[Sysname] pim
[Sysname-pim] c-rp vlan-interface 10 group-policy 2000
crp-policy
Syntax
crp-policy acl-number
undo crp-policy
View
PIM view
Parameters
acl-number: Advanced ACL number, ranging from 3000 to 3999. When defining the ACL, use the
source keyword in the rule command to specify a C-RP address and use the destination keyword to
specify a multicast address range that the C-RP will serve.
Description
Use the crp-policy command to configure a valid C-RP address range and a multicast group range that
the C-RPs will serve to prevent C-RP spoofing.
Use the undo crp-policy command to restore the default.
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