Configuring c-rp timers globally, Configuring a bsr – H3C Technologies H3C S7500E Series Switches User Manual
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The default embedded RP address scopes are FF7x::/12 and FFFx::/12. Here “x” refers to any
legal address scope. For details of the scope field, see Multicast Overview of the IP Multicast
Configuration Guide.
Configuring C-RP timers globally
To enable the BSR to distribute the RP-Set information within the IPv6 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 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:
To do...
Use the command...
Remarks
Enter system view
system-view
—
Enter IPv6 PIM view
pim ipv6
—
Configure the C-RP-Adv interval
c-rp advertisement-interval
interval
Optional
60 seconds by default
Configure C-RP timeout time
c-rp holdtime interval
Optional
150 seconds by default
For the configuration of other timers in IPv6 PIM-SM, refer to
Configuring a BSR
An IPv6 PIM-SM domain can have only one BSR, but must have at least one C-BSR. Any router
can be configured as a C-BSR. Elected from C-BSRs, the BSR is responsible for collecting and
advertising RP information in the IPv6 PIM-SM domain.