© Copyright Lenovo 2017 Chapter 31: Protocol Independent Multicast 503
Specifying a Bootstrap Router
UsingPIM‐SM,aBootstrapRouter(BSR)isaPIM‐capablerouterthathoststhe
electionoftheRPfromavailablecandidaterouters.ForeachPIM‐enabledIP
interface,theadministratorcansetthepreferencelevelforwhichthelocalinterface
becomestheBSR:
Avalueof255highlyprefersthe
localinterfaceasaBSR.Avalueof‐1indicates
thatthePIMCBSRpreferenceisnotconfiguredonthelocalinterface.
CN 4093(config)# interface ip <Interfacenumber>
CN 4093(config-ip-if)# ip pim cbsr-preference <0to255>
CN 4093(config-ip-if)# exit