Alcatel Carrier Internetworking Solutions 6648 - Manual (Page 268)

BSR Election Troubleshooting PIM-SM
page 16-6 OmniSwitch Troubleshooting Guide September 2005
BSR Election
Candidates-BSR sends Bootstrap messages within its PIM-SM domain. Bootstrap messages are multicast
to the ALL-PIM-ROUTERS group. Bootstrap message parameters C-BSR ID, which are equal to the BSR
IP address, and the C-BSR priority, are used for the BSR election. The BSR will be the router with the
highest priority; in case the routers have the same priority, the highest IP address will become the BSR.
After BSR has been elected, intermediate routers forward Bootstrap messages originated at the BSR.
Com 3 Com 3 Com 3
Com 3
192.168.11.2
192.168.10.2
192.168.10.3
192.168.9.4
192.168.9.2
bootstrap message
BSR ID 192.168.11.1
BSR priority 0
bootstrap message
BSR ID 192.168.11.2
BSR priority 0
bootstrap message
source ip 192.168.10.2
BSR ID 192.168.11.1
BSR priority 0
bootstrap message
source ip 192.168.9.2
BSR ID 192.168.11.1
BSR priority 0