Configuring C-RPs
About C-RP configuration
To avoid C-RP spoofing, configure a C-RP policy to filter C-RP advertisement messages by using an ACL that specifies the packet source address range and multicast group addresses.
Restrictions and guidelines
Configure C-RPs on devices that reside in the backbone network.
Because the RP and other devices exchange a large amount of information in the PIM-SM domain, reserve a large bandwidth between C-RPs and other devices.
You must configure the same C-RP policy on all C-BSRs in the PIM-SM domain because every C-BSR might become the BSR.
Procedure
Enter system view.
system-view
Enter PIM view.
pim [ vpn-instance vpn-instance-name ]
Configure a C-RP.
c-rp ip-address [ advertisement-interval adv-interval | group-policy ipv4-acl-number | holdtime hold-time | priority priority ] *
(Optional.) Configure a C-RP policy.
crp-policy ipv4-acl-number
By default, no C-RP policies are configured. All C-RP advertisement messages are regarded as legal.