HP MSR2003 Configuration Manual page 306

The holdtime option in C-RP advertisement messages defines the C-RP lifetime for the advertising C-RP.
The BSR starts a holdtime timer for a C-RP after it receives an advertisement message. If the BSR does not
receive any advertisement message when the timer expires, it considers the C-RP failed or unreachable.
To guard against C-RP spoofing, configure a filtering policy on the BSR to define the legal C-RP address
range and the multicast group range to which the C-RP is designated. In addition, because every C-BSR
might become the BSR, you must configure the same filtering policy on all C-BSRs in the IPv6 PIM-SM
domain.
When you configure a C-RP, reserve a relatively large bandwidth between the C-RP and the other devices
in the IPv6 PIM-SM domain.
To configure a C-RP:
Step
1. Enter system view.
2. Enter IPv6 PIM view.
3. Configure a C-RP.
4. (Optional.) Configure a legal
C-RP address range and the
IPv6 multicast group range to
which the C-RP is designated.
Configuring Anycast RP
IMPORTANT:
The Anycast RP address must be different from the BSR address. Otherwise, the other Anycast member
devices will discard the BSM sent by the BSR.
You must configure the static RP or C-RPs in the IPv6 PIM-SM domain before you configure the Anycast RP.
Use the address of the static RP or the dynamically elected RP as the Anycast RP address.
When you configure Anycast RP, follow these guidelines:
You must add the device that the Anycast RP resides as an RP member to the Anycast RP set. The RP
•
member address cannot be the same as the Anycast RP address.
You must add all RP member addresses (including the local RP member address) to the Anycast RP
•
set on each member RP device.
HP recommends that you configure no more than 16 Anycast RP members for an Anycast RP set.
•
HP recommends that you configure the loopback interface address of an RP member RP device as
•
the RP member address. If you add multiple interface addresses of an RP member device to an
Anycast RP set, the lowest IPv6 address becomes the Anycast RP member address. The rest of the
addresses become backup RP member addresses.
To configure Anycast RP:
Command
system-view
ipv6 pim [ vpn-instance
vpn-instance-name ]
c-rp ipv6-address [ advertisement-interval
adv-interval | { group-policy acl6-number
| scope scope-id } | holdtime hold-time |
priority priority ] *
crp-policy acl6-number
296
Remarks
N/A
N/A
By default, no C-RP is
configured.
By default, no restrictions
are defined.