H3C Technologies H3C SecPath F1000-E - Manual (Page 640)

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Step Command Remarks
1. Enter system view. system-view N/A
2. Enter public network PIM view. pim N/A
3. Configure an interface to be a
C-RP for PIM-SM.
c-rp interface-type interface-number
[ group-policy acl-number | priority
priority | holdtime hold-interval |
advertisement-interval adv-interval ] *
No C-RPs are configured
by default.
4. 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 you configure 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.
3. 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.
To enable auto-RP:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter public network PIM view. pim N/A
3. Enable auto-RP. auto-rp enable Disabled by default
4. 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 in the network.
Each C-RP encapsulates a timeout value in its C-RP-Adv messages. After 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 this 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.
To configure C-RP timers globally:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter public network PIM view. pim N/A
3. Configure the C-RP-Adv interval. c-rp advertisement-interval interval
Optional.
60 seconds by default.