HP CommonIO Products Manual de usuario Pagina 133
- Pagina / 261
- Tabla de contenidos
- SOLUCIÓN DE PROBLEMAS
- MARCADORES
Valorado. / 5. Basado en revisión del cliente
PAD Services
Remote PAD Support (x29server)
Chapter 6 133
Figure 6-3 Remote PAD Support
The x29server remote PAD support provides capabilities for:
• Managing call acceptance.
• Launching applications automatically.
• Ensuring system security.
• Monitoring access and data transfers.
When x29server begins execution, it examines the PAD support section
(pad_spt) of the /etc/x25/x29hosts file. The PAD support section
contains user-configurable parameters for all devices. See Appendix B,
X.25 Configuration Files and Examples, for an example of the x29hosts
file.
Call Acceptance Mechanism and System Security
The x29server process operates in conjunction with devices declared in
the set of pad_spt (PAD support) entries contained in the x29hosts file.
It continually “listens” to the network and initializes communications
channels at the user level when a call request is received. x29server can
handle a large number of calls because each communication channel is
managed by an independent process.
T
T
T
PAD
HP 9000 host
Packet-Switching
Network
X.25
Level III
Pseudo-
terminal
drivers
(PTYs)
Kernel
User Level
BSD Sockets
x29server
Applications
UNIX
- HP X.25/9000 User’s Guide 1
- Legal Notices 2
- Contents 3
- 1 About the X.25 Product 15
- About the X.25 Product 17
- Chapter 1 17 17
- Session (L5) Levels 18
- Transport Level (L4) 19
- Packet/network Level (L3) 20
- Chapter 122 22
- 2 Installation 23
- Hardware Requirements 24
- Software Requirements 27
- 3 Configuration 29
- Configuring the X.25 Link 30
- Configuring an X.25 Address 32
- Verifying Level 3 Values 39
- Verifying Level 2 Values 44
- Configuring X.25 over LLC2 54
- Configuration 58
- Chapter 358 58
- XOL_logical_port_id 1 66
- XOL_DSAP 0x70 66
- XOL_SSAP 0x70 66
- Configuring PAD Services 71
- Add/Modify UUCP Server 73
- Add/Modify X.3 Parameters 74
- Packages 77
- X.25 Cluster Definition 77
- X.25 over LLC2 81
- Local Failover 82
- Step 1. T 85
- Remote Failover 86
- longer required 89
- Service Guard 91
- Step 2. Con 93
- Chapter 394 94
- Chapter 3 95 95
- Verifying the X.25 Link 96
- 4 OLA/R Overview and Concepts 97
- Important Terms and Concepts 99
- Planning and Preparation 100
- Critical Resources 101
- Card using SMH 103
- OLA/R Overview and Concepts 110
- Chapter 4110 110
- 5 Diagnostic Utilities 111
- Using Diagnostic Utilities 112
- Break key as your interrupt 114
- Parameters) 115
- Diagnostic Utilities 116
- Chapter 5116 116
- Counters 123
- Chapter 5 125 125
- PER-VC STATISTICS FOR X25 126
- 126
- 6 PAD Services 129
- Introduction 130
- Packet Switching 131
- Overview 132
- User Level 133
- BSD Sockets 133
- 0x01000000 134
- System Requirements 140
- Examples 144
- UUCP Support (x29uucpd) 146
- Configuring UUCP PAD Support 147
- Local PAD Emulation (padem) 156
- Data Transfer Mode 157
- PAD Commands 160
- Extended Command Set 161
- Configuration Set Syntax 163
- Modifying Parameters 164
- X.3 Parameter Descriptions 165
- Ctrl-P, 32 to 126 permits 166
- Chapter 7 175 175
- Tracing and Logging Utilities 177
- Chapter 7 177 177
- Creating a Filter File 183
- Device File 188
- Sub code = 188
- Examples of strace Output 193
- Chapter 7196 196
- 8 Troubleshooting 197
- Run x25stat 200
- Statistics dispayed 200
- Troubleshooting 202
- Chapter 8202 202
- Reporting Problems 209
- Eliminator 211
- Commands 212
- Examples of x25init 214
- File Mapping Parameters 216
- Appendix A 219 219
- Appendix A224 224
- X.25 Configuration Files 226
- Example Files 228
- Appendix B 229 229
- Table B-6 (Continued) 229
- Appendix B230 230
- The x25init_smpl File 231
- Appendix B232 232
- Table B-7 (Continued) 232
- The x3config File 233
- Appendix B234 234
- Appendix B 235 235
- The x29hosts File 236
- C Diagnostic Messages 239
- Diagnostic Message Example 241
- Cause Code Settings 242
- Packet Codes 243
- X.25 Diagnostic Messages 244
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