X.25

1. McGraw-Hill ©The McGraw-Hill Companies, Inc., 2001
Chapter 17
X.25

2. McGraw-Hill ©The McGraw-Hill Companies, Inc., 2001
Figure 17-1
X.25

3. McGraw-Hill ©The McGraw-Hill Companies, Inc., 2001
Figure 17-2
X.25 Layers in Relation to the OSI Layers

4. McGraw-Hill ©The McGraw-Hill Companies, Inc., 2001
Figure 17-3
Format of a Frame

5. McGraw-Hill ©The McGraw-Hill Companies, Inc., 2001
Figure 17-4
Addressing at the Frame Layer

6. McGraw-Hill ©The McGraw-Hill Companies, Inc., 2001
Figure 17-5
Three Phases
of the
Frame Layer

7. McGraw-Hill ©The McGraw-Hill Companies, Inc., 2001
Figure 17-6
Frame Layer and Packet Layer Domains

8. McGraw-Hill ©The McGraw-Hill Companies, Inc., 2001
Figure 17-7
Virtual Circuits
in X.25

9. McGraw-Hill ©The McGraw-Hill Companies, Inc., 2001
Figure 17-8
LCNs in X.25

10. McGraw-Hill ©The McGraw-Hill Companies, Inc., 2001
Figure 17-9
LCN Assignments

11. McGraw-Hill ©The McGraw-Hill Companies, Inc., 2001
Figure 17-10
PLP Packet Format

12. McGraw-Hill ©The McGraw-Hill Companies, Inc., 2001
Figure 17-11
Categories of PLP Packets

13. McGraw-Hill ©The McGraw-Hill Companies, Inc., 2001
Figure 17-12
Data Packets in the PLP Layer

14. McGraw-Hill ©The McGraw-Hill Companies, Inc., 2001
Figure 17-13
RR, RNR, and REJ Packets

15. McGraw-Hill ©The McGraw-Hill Companies, Inc., 2001
Figure 17-14
Other Control Packets

16. McGraw-Hill ©The McGraw-Hill Companies, Inc., 2001
Figure 17-15
Control Packet Formats

17. McGraw-Hill ©The McGraw-Hill Companies, Inc., 2001
Figure 17-16
X.25 Address Format

18. McGraw-Hill ©The McGraw-Hill Companies, Inc., 2001
Figure 17-17
Triple-X Protocols