3Com S7906E Configuration Manual page 1302

To do...
Enter IPv6 PIM view
Configure the Hash mask
length
Configure the C-BSR priority
Configuring C-BSR timers
The BSR election winner multicasts its own IPv6 address and RP-Set information throughout the region
that it serves through bootstrap messages. The BSR floods bootstrap messages throughout the
network at the interval of BS (BSR state) period. Any C-BSR that receives a bootstrap message retains
the RP-set for the length of BS timeout, during which no BSR election takes place. If the BSR state
times out and no bootstrap message is received from the BSR, a new BSR election process is triggered
among the C-BSRs.
Perform the following configuration on C-BSR routers.
Follow these steps to configure C-BSR timers:
To do...
Enter system view
Enter IPv6 PIM view
Configure the BS period
Configure the BS timeout
About the BS period:
By default, the BS period is determined by this formula: BS period = (BS timeout – 10) / 2. The
default BS timeout is 130 seconds, so the default BS period = (130 – 10) / 2 = 60 (seconds).
If this parameter is manually configured, the system will use the configured value.
About the BS timeout:
By default, the BS timeout value is determined by this formula: BS timeout = BS period × 2 + 10.
The default BS period is 60 seconds, so the default BS timeout = 60 × 2 + 10 = 130 (seconds).
If this parameter is manually configured, the system will use the configured value.
Use the command...
pim ipv6
c-bsr hash-length hash-length
c-bsr priority priority
Use the command...
system-view
pim ipv6
c-bsr interval interval
c-bsr holdtime interval
1-23
Remarks
—
Optional
126 by default
Optional
0 by default
Remarks
—
—
Optional
For the default value, see the
note below.
Optional
For the default value, see the
note below.