Atm Protocol Architecture - 3Com LANPLEX 2500 Operation Manual

ATM Protocol
Architecture
ATM
end-station
Application
Data
ATM
Layers
VPI/VCI
Table
Virtual Path
Virtual Channel
Figure 11-4 Virtual Connections
ATM layers do not map directly to the Open Systems Interconnect (OSI)
Reference Model of traditional LAN networks. ATM layers follow the BISDN
reference model, shown in Figure 11-5.
.
BISDN Reference Model
Application
and
Upper Protocol
Layers
Convergence
Segmentation and Reassembly
ATM Layer
Transmission Convergence
Physical Medium Dependent
Figure 11-5 BISDN Protocol Reference Model

ATM Protocol Architecture

ATM
switch
VPI/VCI
Table
Virtual Path
Virtual Channel
Virtual Channel Connection
ATM
Adaption
Sublayer
Layers
Physical
Layer
end- station
Application
ATM
switch
Layers
VPI/VCI
VPI/VCI
Table
Virtual Path
Virtual Channel
ATM
11-7
ATM
Data
ATM
Table