Pim Common Configuration; Fig. 9.5 Rpt Of Pim-Sm; Fig. 9.6 Stp Of Pim-Sm - Siemens S223 User Manual

UMN:CLI
9.3.1
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2. Ask RP for
multicast packet
E
(Rendezvous Point)
3. RP transmits multicast
packet for the request
RPT of PIM-SM
Fig. 9.5
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
A
hops when traffic exceeds certain limit
1. Multicast packet
transmitted to RP
Source
STP of PIM-SM
Fig. 9.6

PIM Common Configuration

Routing functionalities such as RIP, OSPF, BGP and PIM-SM are only available for hiD
6615 S323. (Unavailable for hiD 6615 S223)
D
RP
B
RP
(Rendezvous Point)
3. RP transmits multicast
packet for the request
SURPASS hiD 6615 S223/S323 R1.5
1. Multicast packet
transmitted to RP
B
2. Ask RP for
multicast packet
C
3. RP transmits multicast
packet for the request
2. Ask RP for
multicast packet
C
A50010-Y3-C150-2-7619
User Manual
A
F
D
E
F