Configuring a c-rp – H3C Technologies H3C SecPath F1000-E User Manual

Page 182

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Perform the following configuration on all the routers in the IPv6 PIM-SM domain.
Follow these steps to configure a static RP:

To do…

Use the command…

Remarks

Enter system view

system-view

Enter IPv6 PIM view

pim ipv6

Configure a static RP

static-rp ipv6-rp-address
[ acl6-number ] [ preferred ]

Required
No static RP by default

CAUTION:

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...

Use the command...

Remarks

Enter system view

system-view

Enter IPv6 PIM view

pim ipv6

Configure an interface to be a C-RP

c-rp ipv6-address
[ { group-policy acl6-number |
scope scope-id } | priority
priority | holdtime hold-interval
| advertisement-interval
adv-interval ] * [ bidir ]

Required
No C-RPs are configured by

default.

Configure a legal C-RP address
range and the range of IPv6

multicast groups to be served

crp-policy acl6-number

Optional
No restrictions by default

NOTE:

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.

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