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General IO Connectivity manual Data link L2 and Physical L1 Levels Chapter
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General IO Connectivity
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Troubleshooting
Install
Flowchart
On-Line Replacement
Configuration
Reporting Problems
RESET/CLEAR Packet Codes
Diagnostic Utilities
Command Mode
Modify IP Over X.25 Defaults
Page 22
Image 22
About the X.25 Product
Data link (L2) and Physical (L1) Levels
22
Chapter 1
Page 21
Page 23
Page 22
Image 22
Page 21
Page 23
Contents
Edition
Manufacturing Part Number J2793-90073 E0607
Legal Notices
Contents
Diagnostic Utilities
PAD Services
Tracing and Logging Utilities
SUsing Non-English Subscription Forms
Diagnostic Messages
Tables
Tables
Tables
Tables
Figures
Figures
About the X.25 Product
Introduction
Link Architecture
BSD IPC TCP/UDP
Application L7, Presentation L6, Session L5 Levels
Transport Level L4
Packet/network Level L3
Data link L2 and Physical L1 Levels
Data link L2 and Physical L1 Levels Chapter
Installation
Hardware Requirements
Before you Install the software
Installing Multiple X.25 Interface Cards
Hardware Compatibility
Memory
OS Platform and Version Compatibility
Related Parameters
Example
TM = 9,123,840 8.7 Mb
Software Requirements
Installing the X.25 Link Software
Step
Installing the X.25 Link Software Chapter
Configuration
Configuring the X.25 Link
Using SAM
Using SAM’s On-line Help
Configuring an X.25 Address
Field Descriptions
Configuring X.25 Virtual Circuits VCs
Configuring an Internet Address
Configure Internet Address
Configure Internet Address Field Descriptions
IP Address and Default Subnet Masks Class
IP Address Class Default Subnet Mask
IP Address and Default Subnet Masks
Modify IP Over X.25 Defaults
Modify IP over X.25 Defaults Field Descriptions
Verifying Level 3 Values
Verify Level 3 Values
Verify Level 3 Values Field Descriptions
Default is Modulo-8
Switched VC Flow Control Field Descriptions
Permanent VC Flow Control Field Descriptions
Configuring the X.25 Link
Verifying Level 2 Values
Throughput Classes and Line Speeds
Settings for your configuration
Verify Level 2 Values Field Descriptions
Using Maximum Window-Size Settings with Modulo-128
Recommended Maximum Window Sizes
Level 3 Packet Level 2 Window Size
Configuring Remote System Access
Add Internet Connectivity Dialog
Add Internet Connectivity Field Descriptions
X25init -cconfigurationfile-a ipmapfile
Provide X.25 Information Field Descriptions
Internet Addresses & Routes object list. SAM updates
Configuring X.25 over LLC2
Configuration Files
Additional XOL specific configuration parameters
Patch requirements for the XOL HA feature and configurable
Field Format Value
Xoldsap
Devicelan00x7c Lanboxid Lanboxaddr 0x080009c4728a 0x7e
Example 3-3 LLC2 Configuration
Ccitt
Run the following command at the Cisco console
Starting and Stopping Configuration
Step Run the following command at the Cisco console
Sample setup and Configuration
One Lan and Two Boxes configuration
11 One LAN, Two Boxes Configuration To connect Host to BOX
To connect Host to BOX
To Connect Box 1 to Host
Configuring Two Lans, with One Box Per Lan
To configure Host to LAN 1 to BOX
To Start and Stop above configuration
To Connect Box 0 to Host
To Connect Box 1 to Host
Troubleshooting LLC2 Configuration
Add/Modify PAD Terminal Emulation Local to
Configuring PAD Services
Remote
Add/Modify PAD Support Server Remote to Local
Add/Modify PAD Printers Server
Add/Modify Uucp Server
Add/Modify X.3 Parameters
PAD. As the terminal characteristics of your session change,
Configuring the High Availability Feature
Commands to be Configured in High Availability Packages
Cluster Definition
High Availability Configuration
Example 3-4 One Example of Remote Failure
Checking the Configuration
$ x25check
X25check 250207 -i interface0p2
Configuring the High Availability Feature for X.25 over LLC2
Unique MAC Address Requirement
Configuring XOL HA for Local Failover Without ServiceGuard
Local Failover
13 Before the Failover
After the Failover
Example Configuring Standby Device and Unique MAC Address
Configuring XOL HA for Remote Failover Using Service Guard
Remote Failover
15 Before the Failover
Commands Used in the SG Package Control Scripts
XOL Cluster Definition
XOL Package Definition
Example 3-6 XOL SG package for remote failover
Remote Failover with Local Failover Support Using
Service Guard
Then, the above parameters take the following values
Example Remote Failover with Local Failover support
# Service Names and Commands
Configuring the High Availability Feature for X.25 over LLC2
Verifying the X.25 Link
Ping
100
OLA/R Overview and Concepts
102
Important Terms and Concepts
Terms used in this section Meaning
Card Compatibility
On-Line Replacement
Planning and Preparation
On-Line Addition
Critical Resources
Failover Actions / Single Points of Failure
Interface card under consideration will be stopped before
How to On-line Replace OLR a J3525A or
J3526A PCI Card using SAM
Disconnect messages. The connections will have to be
Three Possible Critical Resource Analysis CRA Outcomes
Screen Buttons Outcome Activate User Actions Displays
Chapter 109
110
How to On-line Add OLA a J3525A or J3526A
PCI Card using SAM
112
Chapter 113
114
Diagnostic Utilities
Using Diagnostic Utilities
Available Diagnostic Utilities Utility Description Refer to
Scope of X.25 Diagnostic Utilities
Psidad
Before Using the Diagnostic Utilities
X25check and x25server
Example 1 Running x25check Interactively No Parameters
120
Example 2 Running x25check With an X.121 Address
Example 3 Running x25check With a Data Packet
Example 1 Displaying the Current Configuration
X25stat
Example 2 Displaying Global Statistics
X25stat -d X25stat -g -d
Diagnostic Utilities x25stat
Level 3 State Output on Screen Description/Meaning
Level 3 State
Level 2 Link State Output on Screen Description/Meaning
Level 1 Link State Output on Screen Description/Meaning
Counters
Example 3 Displaying Virtual Circuit Data Packet
VC State Output on Screen Description/Meaning
Example 5 Displaying X.25 Level 1 and 2 Statistics
Example 4 Displaying Global X.25 Level 3 Statistics
VC State
Chapter 129
Example 6 Displaying Virtual Circuit Status
Example 7 Displaying Current IP to X.25 Address Mapping
X25stat -a
X25mibstat
Example Statistics for x25mibstat X25mibstat Option Remark
PAD Services
Ccitt Recommendations
PAD services and the HP 9000 host
PAD Support Protocols
Remote PAD Support x29server
PAD Services as a Pipe
Overview
Remote PAD Support
Call Acceptance Mechanism and System Security
0x01000000
Configuring padspt Parameters
Configuring Remote PAD Support
Supported Remote PAD Terminals
Padspt Parameters
Chapter 141
Launching Applications Automatically
Remote PAD Printer Support x29printd
Remote PAD Printer Support x29printd
System Requirements
Remote Printer Support
Configuring Remote PAD Printers
146
Configuring the Unix Line-printer Spooler for x29printd
Examples
Printer Configuration
X29printd and lpsched Operation
Verifying the Configuration
Uucp Support x29uucpd
Configuring Uucp PAD Support
Receiving HP
Configuring the x29hosts file
File Contents
Paduucp Parameters
Chapter 153
Configuring System and Device Files for Uucp
At the dave system
Chapter 155
At the bill system
Chapter 157
158
Chapter 159
Command Mode
Local PAD Emulation padem
Configuring Local PAD Emulation
Data Transfer Mode
Parameter Descriptions
162
Chapter 163
PAD Commands
PAD Command Set
Extended Command Set
166
Configuring X.3 Profile Parameters
Configuration Set Syntax
Modifying Parameters
Parameter Values
Default X.3 Parameters
Parameter Descriptions
Parameter Description
Value Meaning
Chapter 171
172
Value Baud Rate
174
Chapter 175
176
Chapter 177
178
Tracing and Logging Utilities
180
Scope of X.25 Tracing and Logging Utilities
Syntax
Nettl
Parameters
0x40000000
Tracing Masks Keyword a
0x80000000
0x20000000
184
Netfmt
Chapter 185
186
Creating a Filter File
Filter File Syntax
Filter File Options System/subsystem Type Value Level
Filter
Chapter 189
Filter File Examples
Strace
Chapter 191
7030
7030 + 1 =
Chapter 193
Output Format
Packet Type Parameters Displayed
Frame Type Parameters Displayed
Examples of the strace Command
Examples of strace Output
Record Time Tics Pri Ind Mod Sub Data Num
198
Strerr
200
Troubleshooting
Troubleshooting Your X.25 Link
Troubleshooting Commands Purpose Refer to
Troubleshooting Flowcharts and Procedures
Troubleshooting Commands
Flowchart 2 Procedures and Notes
Flowchart
Chapter 205
Flowchart 2 Initialization Check
See Note
Flowchart 3 Procedures and Notes
Flowchart 3 Hardware and License Check
Flowchart 4 Procedures and Notes
Flowchart 5 Procedures and Notes
Flowchart 4 X.25 Configuration Check
210
Flowchart 5 IP Over X.25 Check
For Systems With a Backup Power Supply
Recovering From a Power Failure
For Systems With No Backup Power Supply
Reporting Problems
214
Back-to-back Configuration on the Same Host
Host
216
Configuration and Troubleshooting Commands
Command Summary
218
Examples of x25init
IP-to-X.121 Address Mapping Table
Syntax for SVCs
Syntax for PVCs
File Mapping Parameters
222
Chapter 223
224
Using Non-English Subscription
Subscription Form Translations
Transpac
Table A-1 French Transpac Subscription Form
Itapac
Table A-2 Using Your Itapac Italian Subscription Form
Throughput Class Setting
Table A-4 Using your Iberpac Spanish Subscription Form
230
Configuration Files
Table B-1 Etc/x25 directory
Configuration Files
Table B-2 Etc directory
Table B-4
Table B-3 Var/x25/log/x25server directory
Table B-5
X25initdef File
Example Files
Table B-6
Appendix B 235
236
X25initsmpl File
Table B-7
238
X3config File
240
Example Files Appendix B 241
X29hosts File
Table B-8
Network Type File x25networks
Table B-9
Diagnostic Messages
Appendix C
Diagnostic Message Example
Cause Code Settings
Packet Codes
RESET/CLEAR Packet Codes
Restart Packet Codes
Table C-2 Packet Type Invalid Diagnostic
Diagnostic Messages
Table C-1 No Additional Information Diagnostic
Explanation
Table C-3 Packet Not Allowed Diagnostic
Table C-2 Packet Type Invalid
Table C-3 Packet Not Allowed
LCI
Table C-4 Timer Expired Diagnostic
Incoming
Table C-4 Timer Expired
Appendix C 255
256
Appendix C 257
Table C-6 Category Miscellaneous Diagnostic
Table C-7 International Problem and Maintenance Diagnostic
Table C-7 International Problem and Maintenance
Table C-8 DTE-Specific Signals Diagnostic
Table C-8 DTE-Specific Signals
Table C-9 OSI Network Service Problem Diagnostic
Table C-9 OSI Network Service Problem
Nsap
Table C-10 Higher Level Initiated Diagnostic
Table C-10 Higher Level Initiated
264
Symbols
Index
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