H3C Technologies H3C S10500 Series Switches - Manual (Page 179)

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and advertises it to all routers in the BIDIR-PIM domain. All the routers use the same hash algorithm to get
the RP address corresponding to specific multicast groups.
Perform the following configuration on C-BSR routers.
Follow these steps to configure global C-BSR parameters:
To do… Use the command… Remarks
Enter system view system-view —
Enter public network PIM view or
VPN instance PIM view pim [ vpn-instance
vpn-instance-name ]
—
Configure the hash mask length c-bsr hash-length hash-length
Optional
30 by default
Configure the C-BSR priority c-bsr priority priority
Optional
64 by default
NOTE:
You can configure the hash mask length and C-BSR priority globally, in an admin-scope zone, and in the
global scope zone.
• The values configured in the global scope zone or admin-scope zone have preference over the global
values.
• If you do not configure these parameters in the global scope zone or admin-scope zone, 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 no bootstrap message is received from the BSR
before the BS timeout timer expires, 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 network PIM view 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
after this table.
Configure the BS timeout timer c-bsr holdtime interval
Optional
For the default value, see the note
after this table.