3Com PathBuilder S200 Series User Manual
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3Com PathBuilder S200 Series User Manual

3Com PathBuilder S200 Series User Manual

Switch trans polled async
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3Com
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PathBuilder
S200 Series Switch
Trans Polled Async

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Summary of Contents for 3Com PathBuilder S200 Series

  • Page 1 ® 3Com Corporation ™ PathBuilder S200 Series Switch Trans Polled Async...
  • Page 2 Notice © 1998 3Com Corporation 5400 Bayfront Plaza Santa Clara, CA 95052-8145 (408) 326-5000 All rights reserved. Printed in U.S.A. Portions reprinted with the permission of Motorola, Inc. Restricted Rights Notification for U.S. Government Users The software (including firmware) addressed in this manual is provided to the U.S.
  • Page 3 Information and software in this document are proprietary to 3Com (or its Suppliers) and without the express prior permission of an officer of 3Com, may not be copied, reproduced, disclosed to others, published, or used, in whole or in part, for any purpose other than that for which it is being made available.

  • Page 5: Table Of Contents

    Functionality ... TPA 2K Frame Size Increase ... Supported Protocols ... Configuration ... Creating a PAD Profile ... PAD Profile Table Parameters ... Enabling a PAD Profile ... Administration ... Boot Command ... Detailed PAD Port Statistics ... PAD Profile Table Configuration Worksheet ... Contents...
  • Page 6 Contents (continued)
  • Page 7 TPA allows complete asynchronous messages to be transmitted without the intercharacter delay normally encountered when using the standard asynchronous PAD. Hardware The Transparent Polled Async option is available on PathBuilder S200 series switch Requirements platforms. Custom Software You may have to access TPA by using either a Custom Software Key (CSK).

  • Page 8: Functionality

    To ensure that data is transmitted properly in this application, a PathBuilder S200 series switch PAD must not begin to transmit a message to a user device until it has received the entire message from the network.

  • Page 9: Tpa 2K Frame Size Increase

    Frame Size Step Transparent Polled Async If the node is a PathBuilder S24x, 26x, and 27x switch, enable the CSK for the TPA option on this node. Enable the CSK for the TPA 2K Frame Size feature on the node.

  • Page 10: Supported Protocols

    The TPA option can be used with other protocols on the same MX25 or X25 lines. In Figure 2, an MX25 link and an X.25 link are used in a small network to switch Transparent Polled Async, Bisync, and SDLC data.

  • Page 11: Configuration

    Overview This section explains how to configure Transparent Polled Async (TPA) on PathBuilder S200 series switch platforms. Refer to the Configuration Basics Guide for information on logging on and accessing the Main menu from the CTP. Figure 3 illustrates the PAD Profile parameters required to accommodate the different TPA environments.

  • Page 12: Creating A Pad Profile

    Creating a PAD Profile Overview To create a TPA PAD Profile, select Copy/Insert Record from the Main menu. Using the Copy Special PAD Profile from PROM function, you can copy default TPA PAD profiles. There are two default TPA PAD profiles: •...

  • Page 13: Pad Profile Table Parameters

    PAD Profile Table Parameters List of Parameters Listed below are descriptions of the PAD Profile parameters that must be configured when using Transparent Polled Async. Refer to the Configuring for APAD/ATPAD Manual for a complete listing of PAD Profile parameter descriptions. Data Forwarding Character (#3) Range: Default:...
  • Page 14 Data Forwarding Criteria (#115) Range: Default: Description: This table provides a quick reference for identifying which parameter is used when the Data Forwarding Criteria (#115) parameter is set to 0, 1, or 2. When Data Forwarding Criteria (#115) is set to... Note When Data Forwarding Criteria (#115-0) is used, select either #3 or #4.
  • Page 15 Short Timer Duration (#116) Range: Default: Description: EIA Signalling Action (#117) Range: Default: Description: Message Assembly (#118) Range: Default: Description: Transparent Polled Async 0 to 255 Selects Short Timer duration in milliseconds (used with #115). During receipt of an asynchronous message, if a character has not been received in the time period defined by Short Timer Duration, the message is determined to be complete and is sent into the X.25 network.

  • Page 16: Enabling A Pad Profile

    Enabling a PAD Profile How To... Once a TPA PAD Profile has been created for a PAD port, the profile can be designated as the current running profile for the PAD port. This is done by executing a Table and Node Record boot, followed by a boot of the specific port. Refer to the “Administration”...

  • Page 17: Administration

    Administration Overview This section describes the Boot command, which is used to enable the PAD Profile. Also described here are the statistics available for Transparent Polled Async (TPA). Complete information on all other statistics are described in the Configuration Basics Guide. Transparent Polled Async...

  • Page 18: Boot Command

    Boot Command Overview Booting updates a node’s operational parameters by using the parameters stored in configuration memory (CMEM). Follow These To designate a TPA PAD Profile as the current running profile for the PAD port: Steps... Step For More Details... For more information regarding the Boot command, refer to the Configuration Basics Guide.

  • Page 19: Detailed Pad Port Statistics

    Detailed PAD Port Statistics Statistics The Statistics command lets you to monitor the status of different parts of the Command network. Use the information appearing on the Detailed Port Statistics screens shown in this section to monitor the operation of a node. To View...
  • Page 20 Node: Detailed PAD Statistics: Port 3 Call Summary: Current Status: Disconnected Time until next auto-call attempt: 0 secs Number of auto-call attempts: 0 Last clear cause code: 0 (Cleared by other end) Last clear diagnostic code: 0 (No more information) Last Inbound Call: Called Address: Calling Address:...
  • Page 21 PAD Port Statistics This table explains the terms used in PAD Port Statistics screens to help you interpret the Statistics displays. Term Port Number Port Type Port Status Speed Port State Port Utilization Physical Data Summary Transparent Polled Async Description Specifies a specific port in the network diagram Indicates the type of port.
  • Page 22 DSR (Data Set Ready) DCD (Carrier Detect) RI (Ring Indicator) CTS (Clear to Send) Note These signals are generated by the PathBuilder S200 series switch port. Current Status: • Connected: Call is connected • Disconnected: Call is disconnected • Called: PAD Port is being called •...
  • Page 23 Term Last Outbound Call Current Running Profile Transparent Polled Async Description (continued) • Called Address: Works in conjunction with the link's Outbound Called Address for outbound calls • Calling Address: Works in conjunction with the link's Outbound Calling Address for outbound calls •...

  • Page 24: Pad Profile Table Configuration Worksheet

    PAD Profile Table Configuration Worksheet Entry Number Profile Name #1 PAD Recall #2 Echo #3 Data Forwarding Character #4 Idle Timer Delay #5 Device Flow Control #6 Service Signals Control #7 Break Signal Operation #9 Padding after Carriage Return #10 Line Folding #12 PAD Data Restraint #13 Line Feed Insertion after CR #14 Padding after LF...
  • Page 25 PAD Profile Table Configuration Worksheet #116 Short Timer Duration #117 EIA Signalling Action #118 Message Assembly Transparent Polled Async...

  • Page 27: Technical Support

    Information contained in this appendix is correct at time of publication. For the very latest, 3Com recommends that you access the 3Com Corporation World Wide Web site. Online Technical 3Com offers worldwide product support 24 hours a day, 7 days a week, through the Services following online systems: • World Wide Web site •...
  • Page 28 U.S.A. Access by Digital Modem ISDN users can dial in to the 3Com BBS using a digital modem for fast access up to 56 Kbps. To access the 3Com BBS using ISDN, use the following number: 1 408 654 2703...
  • Page 29 If you are unable to contact your network supplier, see the following section on how to contact 3Com. Support from If you are unable to obtain assistance from the 3Com online technical resources or 3Com from your network supplier, 3Com offers technical telephone support services. To find out more about your support options, please call the 3Com technical telephone support phone number at the location nearest you.
  • Page 30 Returning Before you send a product directly to 3Com for repair, you must first obtain a Return Products for Repair Materials Authorization (RMA) number. Products sent to 3Com without RMA numbers will be returned to the sender unopened, at the sender’s expense.
  • Page 31 Numerics 2K Frame Size Increase products supporting 3Com bulletin board service (3Com BBS) 3Com URL 3ComFacts Boot Command description Port boot Table and Node Record boot bulletin board service Configuration copying default profiles creating a PAD Profile description enabling a PAD Profile...

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