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To do... Use the command... Remarks
Configure an interface to be a C-
RP for IPv6 BIDIR-PIM
c-rp ipv6-address [ { group-policy acl6-
number | scope scope-id } | priority
priority | holdtime hold-interval |
advertisement-interval adv-interval ] *
bidir
Required
No C-RP is configured by
default.
NOTE:
• When configuring a C-RP, ensure a relatively large bandwidth between this C-RP and the other
devices in the IPv6 BIDIR-PIM domain.
• An RP can serve multiple IPv6 multicast groups or all IPv6 multicast
roups. Only one RP can forward
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.
Follow these steps to enable embedded RP:
To do... Use the command... Remarks
Enter system view
system-view —
Enter IPv6 PIM view
pim ipv6 —
Enable embedded RP
embedded-rp [ acl6-number ]
Optional
By default, embedded RP is
enabled for IPv6 multicast groups
in the default embedded RP
address scopes.
NOTE:
The default embedded RP address scopes are FF7x::/12 and FFFx::/12. Here “x” refers to any legal
address scope. For more information about the Scope field, see the chapter “Multicast overview.”
Configuring C-RP timers globally
To enable the BSR to distribute the RP-set information within the IPv6 BIDIR-PIM domain, C-RPs must
periodically send C-RP-Adv messages to the BSR. The BSR learns the RP-set information from the received
messages, and encapsulates its own IPv6 address together with the RP-set information in its bootstrap
messages. The BSR then floods the bootstrap messages to all IPv6 routers in the network.
Each C-RP encapsulates a timeout value in its C-RP-Adv messages. Upon receiving a C-RP-Adv message,
the BSR obtains this timeout value and starts a C-RP timeout timer. If the BSR fails to hear a subsequent C-
RP-Adv message from the C-RP when the timer times out, the BSR assumes the C-RP to have expired or
become unreachable.
The C-RP timers need to be configured on C-RP routers.
Follow these steps to configure C-RP timers globally:
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