SNAX/XF and SNAX/APN Configuration and Management Manual

Configuring for Token-Ring Support
SNAX/XF and SNAX/APN Configuration and Management Manual—425836-006
9-11
The IEEE Specifications
Figure 9-7 shows the relationship of the three IEEE-defined Token-Ring layers
compared to the ISO and SNA models.
The IEEE layers of logical link control and medium access control contain functionality
similar to the data link levels of both the ISO and SNA protocol stacks.
Figure 9-7. Token-Ring Layers Compared to OSI and SNA
Logical Link Control
Medium Access Control
Physical Control
IEEE 802 Model
SNA Layers
Transaction
Presentation
Data Flow
Control
Transmission
Control
Path Control
Data
Link
Control
Physical
Physical
Data
Link
Network
Transport
Session
Presentation
Application
OSI Model
VST907.vsd