Siemens S323, S223 user manual PIM Common Configuration, Packet for the request

UMN:CLI			User Manual
		SURPASS hiD 6615 S223/S323 R1.5
			1. Multicast packet
		B	transmitted to RP A
2. Ask RP for
multicast packet
E	D
RP			2. Ask RP for
			multicast packet
(Rendezvous Point)
3. RP transmits multicast
packet for the request	C		F

3. RP transmits multicast packet for the request

Fig. 9.5 RPT of PIM-SM

Also, routers on packet route automatically optimize route by deleting unnecessary hops when traffic exceeds certain limit. After route to source and multicast group connected to the source are constituted, all sources have route to connect to receiver directly.

In the below figure, packets are usually transmitted through『A→B→C→D』, but packets are transmitted through faster route『A→C→F』when traffic is increased. SPT (Shortest- Path Tree) selects the shortest route between source and receiver regardless of RP, it is called source based tree or short path tree. SPT has (S, G) entry, “S” means source ad- dress and “G” means multicast group.

4.Optimized route by deleting unnecessary

Ahops when traffic exceeds certain limit

1. Multicast packet transmitted to RP

2. Ask RP for multicast packet

Source

B	C
RP
(Rendezvous Point)
	3. RP transmits multicast
	packet for the request

D

E

F

Fig. 9.6 STP of PIM-SM

9.3.1PIM Common Configuration

!	Routing functionalities such as RIP, OSPF, BGP and PIM-SM are only available for hiD
	6615 S323. (Unavailable for hiD 6615 S223)

304 A50010-Y3-C150-2-7619