H3C Technologies H3C SecPath F1000-E - Manual (Page 115)

19
Follow these steps to configure a C-RP:
To do... Use the command... Remarks
Enter system view system-view —
Enter public network PIM view pim —
Configure an interface to be a C-RP
c-rp interface-type interface-number
[ group-policy acl-number |
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 multicast
groups to be served
crp-policy acl-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 PIM-SM domain.
• An RP can serve multiple multicast groups or all multicast groups. Only one RP can forward
multicast traffic for a multicast group at a moment.
Enabling auto-RP
Auto-RP announcement and discovery messages are addressed to the multicast group addresses
224.0.1.39 and 224.0.1.40 respectively. With auto-RP enabled on a device, the device can receive these
two types of messages and record the RP information carried in such messages.
Follow these steps to enable auto-RP:
To do... Use the command... Remarks
Enter system view system-view —
Enter public network PIM view pim —
Enable auto-RP auto-rp enable
Required
Disabled by default
Configuring C-RP timers globally
To enable the BSR to distribute the RP-set information within the PIM-SM 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 IP address together with the RP-set information in its bootstrap messages. The
BSR then floods the bootstrap messages to all PIM routers (224.0.0.13) 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 within the timeout interval, 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: