Siemens S223, S323 user manual BSR and RP, Bootstrap Router BSR, PIM Debug

User Manual	UMN:CLI
SURPASS hiD 6615 S223/S323 R1.5

9.3.1.5PIM Debug

To activate PIM-SM debugging, use the following command.

Command		Mode	Description
			Activates PIM debugging.
			all : all PIM debugging
			events: PIM events
debug pim {all events nexthop			nexthop: PIM-SM nexthop communications
mib mfc nsm packet [in			mib: PIM-SM MIBs
out] state timer}			mfc: MFC add/delete/update
			nsm: PIM-SM network service module communications
			packet: incoming and/or outgoing packets
		Enable	state: state transition on all PIM-SM FSMs
debug pim timer assert [at]			Enables the PIM-SM assert timers debugging.
debug pim timer bsr [bst crp]			Enables the PIM-SM BSR timer’s debugging.
debug pim timer hello [ht nlt			Enables the PIM-SM Hello timer’s debugging.
tht]
debug pim timer joinprune [	jt		Enables the PIM-SM JoinPrune timer’s debugging.
et ppt kat ot ]
debug pim timer register [rst]			Enables the PIM-SM register timer’s debugging.

9.3.2BSR and RP

There are two ways to decide RP as central of PIM-SM on multicast network. One is that network administrator manually decides RP and the other way is that RP is automatically decided by exchanging information between multicast routers installed on network. The information transmitted between multicast routers in the automatic way is called Bootstrap message and the router, which sends this Bootstrap message, is called BSR (Bootstrap Router). All PIM routers existing on multicast network can be BSR.

Routers that want to be BSP are named as candidate-BSR and one router, which has the highest priority, becomes BSR among them. If there are routers, which have same priority, then one router, which has the highest IP address, becomes BSR. Bootstrap message in- cludes priority to decide BSR, hash-mark to be used in Hash, and RP information. After deciding BSR, routers, which support RP, transmit candidate-RP message to BSR. Can- didate-RP message includes priority, IP address, and multicast group. Then BSR adds candidate-RP message to Bootstrap message and transmits it to another PIM router. Through this transmitted Bootstrap message, RP of multicast group is decided.

User’s equipment belonged in PIM-SM network can be candidate-BSR and BSR is de- cided among them. Candidate-BSR transmits Bootstrap message to decide BSR. You can configure priority to decide BSR among Bootstrap messages and Hash-mask.

9.3.3Bootstrap Router (BSR)

The information transmitted between multicast routers in the automatic way is called Bootstrap message and the router, which sends this Bootstrap message, is called BSR (Bootstrap Router). All PIM routers existing on multicast network can be BSR. Routers, which want to be BSP, are named candidate-BSR and one router, which has the highest

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