Microsoft KB Archive/149062

= XCON: Eicon Tech. X.25 Diagnostic Commands for WinNT & Exchange =

Article ID: 149062

Article Last Modified on 10/28/2006

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APPLIES TO


 * Microsoft Exchange Server 4.0 Standard Edition
 * Microsoft Exchange Server 5.0 Standard Edition
 * Microsoft Exchange Server 5.5 Standard Edition

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This article was previously published under Q149062



SUMMARY
The commands documented below are useful for reporting the current configuration and operational status of Eicon Technologies X.25 hardware and "WAN Services for Windows NT" software. These details may be requested by Eicon Technologies or Microsoft technical support when troubleshooting:
 * X.25 hardware and software installation and configuration issues.

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 * Microsoft Exchange Server X.400 MTA-over-X.25 connectivity issues.



MORE INFORMATION
Eicon Technologies's "WAN Services for Windows NT" diagnostic utilities are installed (by default) into the :\WSNT subdirectory. The output of these commands can be redirected to a text file using standard MS-DOS redirection syntax, for example:

dir >> dir.txt

If you type the following from the \WSNT subdirectory:

ECMODULE STATS HDLC

the following information appears on your screen:

EiconCard Loadable Module Management Utility ECMODULE 3.03 Rev. 00 Copyright (c) Eicon Technology Corporation 1995. All Rights Reserved.

HDLC Loadable Module Statistics Port number: 01                     Port name: NCEMS3X25 T1 expired.......: 0                   Retransmissions..:           0 Underrun.........: 0 Overrun..........: 0 Sent    Received                      Sent Received SABM.............: 1        0          XID..............: 0         0 DISC.............: 0        0          I................: 74785     74941 UA...............: 0        1          RR...............: 30429     30638 DM...............: 0        0          RNR..............: 0         0 FRMR.............: 0        0          Rejects..........: 0         0 Abort............: 0        0 Bad type.........:          0 Bad CRC..........:          0 Command Completed Successfully.

Typically, equal numbers of SABM and UA are expected. Significant numbers of "Abort, Bad Type, Bad CRC, RNR or Rejects" indicates a fundamental problem in the hardware, its configuration, or the link to the other site.

If you type the following:

ECMODULE STATS X25

the following information appears on your screen:

EiconCard Loadable Module Management Utility ECMODULE 3.03 Rev. 00 Copyright (c) Eicon Technology Corporation 1995. All Rights Reserved.

X.25 Loadable Module Statistics Port number: 01                     Port name: NCEMS3X25

Sent    Received                     Sent Received Call     request..: 29        428     Data packets......: 38856     38992 Confirm..: 424      25      Data segments.....: 68660     68552 Restart  request..: 1         0       Characters........: 3902364 3898174         Confirm..: 0         1       Receiver Ready....: 35018     35038 Register request..: 0         0       Receiver Not Ready: 0         0 Confirm..: 0        0       Diagnostic packets: 0         0 Clear    request..: 29        428     Unknown packets...: 0         0 Confirm..: 428      29      Rejects...........: 0         0 Reset    request..: 0         0 Confirm..: 0        0 Interrupt request..: 0        0 Confirm..: 0        0 Command Completed Successfully.

Information similar to the above is indicative of well running X.25 stack.

If you type the following:

ECMODULE STATUS HDLC

the following information appears on your screen:

EiconCard Loadable Module Management Utility ECMODULE 3.03 Rev. 00 Copyright (c) Eicon Technology Corporation 1995. All Rights Reserved.

HDLC Loadable Module Status Port number: 01                     Port name: NCEMS3X25 Addressing.................: DTE     Check point timer T1 (msec).: 2900 Link setup.................: Active  Ack delay timer T2 (msec)...: 200 Maximum retry count N2.....: 10      Idle probe timer T3 (msec)..: 15000 Maximum window size K......: 7       Maximum frame size N1 (byte): 144

Protocol state.............: Opened      @09:59:27 Mar 22

Line state.................: Opened      @09:59:27 Mar 22

Trace......................: Off     Trace buffer size (bytes)....: 0 Trace filter (hex).........: 00      Trace entry size (bytes).....: 0 Command completed successfully.

The above displays the current configuration and operating status of the X.25 stack at the HDLC [lowest] layer. Note that "Trace" is "Off". Typically, tracing down at the HDLC layer is only performed when troubleshooting X.25 connection [link] problems.

If you type the following:

ECMODULE STATUS X25

the following information appears on your screen:

EiconCard Loadable Module Management Utility ECMODULE 3.03 Rev. 00 Copyright (c) Eicon Technology Corporation 1995. All Rights Reserved.

X.25 Loadable Module Status Port number: 01                     Port name: NCEMS3X25 Default Maximum Window size..................: 2       7 Packet size (bytes)..........: 128     128 Packet format................: Extended Maximum retry count N3......: 3 Restart timer T20 (sec)......: 60      Reset timer T22 (sec).......: 60 Call timer T21 (sec).........: 60      Clear timer T23 (sec).......: 60 Idle timer (sec).............: 0       Acknowledgement timer (msec): 20 Two-way VCs configured.......: 4       Permanent VCs configured....: 0 In-coming VCs configured.....: 0       Out-going VCs configured....: 0 Trace........................: Off     Trace buffer size (bytes)...: 0 Trace filter (hex)...........: 00      Trace entry size (bytes)....: 0 Link activated at............: @09:59:27 Mar 22 Last restart.................: @09:59:27 Mar 22

VC Local Address  Remote Address  Type     Status --- No active connection. Command completed successfully.

This command reports many of the critical X.25 layer configuration parameters. Generally, Window size, Packet size, Packet format should match the other party's X.25 configuration to maximize throughput and performance. Note that "Trace" is currently "Off". Tracing at the X.25 is useful when troubleshooting X.25 connectivity issues and sometimes even application issues (for applications that are run across the link).

Eicon Technologies technical support can be reached at (214) 490-3270 (U.S. only), or on the Internet at:

http://www.eicon.com

Keywords: kbusage KB149062

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