DCP Series X.25 Packet Switched Communications Software (PSCS ...

Contents
6.10. X25DEF — Defining Network Characteristics .....6–61
6.11. X25NET — Defining DCE Network Routes ........6–73
6.12. X25ROUTE — Specifying Routing Precedence ....6–75
Section 7. X.25 PSCS Troubleshooting
7.1. Troubleshooting Overview ....................7–2
7.2. Verifying Line Operation .....................7–3
7.2.1. Verifying General Line Operation ................7–3
Determining If X.25 PSCS Installation Failed ......7–4
Determining If X.25 PSCS Initialization Failed ......7–5
Determining If Hardware/DCP System Resources
Failed ................................7–6
7.2.2. Verifying Specific Line Operation ................7–8
Physical Layer Connection ..................7–9
Link Layer Connection .....................7–9
7.3. Verifying Virtual Circuit Connections ...........7–11
7.3.1. Using Data Session or Service Operation to Verify
Connections .............................7–11
7.3.2. Using NMS Commands to Verify Connections ......7–11
7.3.3. Connection Troubleshooting Actions ............7–13
Generating Telcon CENLOG Reports ..........7–13
Generating Layer 3/4 Platform Interface User
Reports ..............................7–14
Using Message Tracing ...................7–14
7.4. Verifying Message Data Transfer Performance ....7–15
7.4.1. Identifying External Facilities and Interfaces That
May Affect Data Transfer Performance ...........7–15
Determining Adequate Virtual Circuit Connection
Resources ............................7–15
Determining Whether Telcon or Host Interface
Resources Affect Data Transfer .............7–16
Determining Adequate DCP/OS Resources ......7–17
7.4.2. Determining Areas Within X.25 PSCS That Affect
Data Transfer ............................7–18
Packet Level Characteristics ................7–18
Incompatible Flow Control Values ...........7–18
Facility Constraints ....................7–19
Link Level Characteristics ..................7–19
Incompatible Frame Control Values .........7–19
Subscription Parameters ................7–20
Physical Line Characteristics ...............7–20
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