3Com S7902E, Руководство по настройке

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About the Hash mask length and C-BSR priority:
z
You can configure these parameters at three levels: global configuration level, global scope zone
level, and admin-scope zone level.
z
The value of these parameters configured at the global scope zone level or admin-scope zone level
have preference over the global values.
z
If you do not configure these parameters at the global scope zone level or admin-scope zone level,
the corresponding global values will be used.
For configuration of C-BSR parameters for an admin-scope zone and global scope zone, see
Configuring C-BSRs for each admin-scope zone and the global-scope zone .
Configuring C-BSR timers
The BSR election winner multicasts its own IP address and RP-Set information through bootstrap
messages within the entire zone it serves. 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… Use the command… Remarks
Enter system view system-view —
Enter public instance or VPN
instance PIM view pim [ vpn-instance
vpn-instance-name ]
—
Configure the BS period c-bsr interval interval
Optional
For the default value, see the
note below.
Configure the BS timeout c-bsr holdtime interval
Optional
For the default value, see the
note below.