HP 4800G Series Configuration Manual page 1024

To enable a static RP to work normally, you must perform this configuration on all routers in the IPv6
PIM-SM domain and specify the same RP address.
Configuring a C-RP
In an IPv6 PIM-SM domain, you can configure routers that intend to become the RP as C-RPs. The
BSR collects the C-RP information by receiving the C-RP-Adv messages from C-RPs or auto-RP
announcements from other routers and organizes the information into an RP-Set, which is flooded
throughout the entire network. Then, the other routers in the network calculate the mappings between
specific group ranges and the corresponding RPs based on the RP-Set. We recommend that you
configure C-RPs on backbone routers.
To guard against C-RP spoofing, you need to configure a legal C-RP address range and the range of
IPv6 multicast groups to be served on the BSR. In addition, because every C-BSR has a chance to
become the BSR, you need to configure the same filtering policy on all C-BSRs in the IPv6 PIM-SM
domain.
Follow these steps to configure a C-RP:
To do...
Enter system view
Enter IPv6 PIM view
Configure an interface to be a
C-RP
Configure a legal C-RP
address range and the range of
IPv6 multicast groups to be
served
When configuring a C-RP, ensure a relatively large bandwidth between this C-RP and the other
devices in the IPv6 PIM-SM domain.
An RP can serve multiple IPv6 multicast groups or all IPv6 multicast groups. Only one RP can
forward IPv6 multicast traffic for an IPv6 multicast group at a moment.
Enabling embedded RP
With the Embedded RP feature enabled, the router can resolve the RP address directly from the IPv6
multicast group address of an IPv6 multicast packets. This RP can replace the statically configured RP
or the RP dynamically calculated based on the BSR mechanism. Thus, the DR does not need to know
the RP address beforehand.
Use the command...
system-view
pim ipv6
c-rp ipv6-address [ group-policy
acl6-number | priority priority |
holdtime hold-interval |
advertisement-interval
adv-interval ] *
crp-policy acl6-number
1-19
Remarks
—
—
Required
No C-RPs are configured
by default.
Optional
No restrictions by default