H3C S3610 Series Operation Manual page 106

Operation Manual – Multicast Protocol
H3C S3610&S5510 Series Ethernet Switches
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.
II. Enabling auto-RP
Auto-RP announcement and discovery messages are respectively addressed to the
multicast group addresses 224.0.1.39 and 224.0.1.40. With auto-RP enabled on a
device, the device can receive these two types messages and record the RP
information carried in such messages.
Follow these steps to enable auto-RP:
Enter system view
Enter PIM view
Enable auto-RP
III. Configuring C-RP timers
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 message. Upon receiving
this 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.
Follow these steps to configure C-RP timers:
Enter system view
Enter PIM view
Configure the C-RP-Adv
interval
To do...
system-view
pim
auto-rp enable
To do...
system-view
pim
c-rp
advertisement-interval
interval
Use the command...
Use the command...
6-24
Chapter 6 PIM Configuration
Remarks
—
—
Optional
Disabled by default
Remarks
—
—
Optional
60 seconds by default