Avaya Configuring BSC Transport Services User's Manual
Contents
1. 308617 14 00 Rev 00 4 3 Configuring BSC Transport Services Creating Primary and Secondary Connections The Interface Attached To parameter specifies whether this interface connects to a host primary connection or a control unit secondary connection Specify either Primary or Secondary The router does not provide a default for this setting Site Manager Interface Attached To page B 2 Selecting an Interface Type The Interface Type parameter specifies whether the interface has one or many TCP connections Point to point provides one TCP connection to the peer router Multipoint provides many TCP connections to one or more peer routers A multipoint connection can also be one TCP connection with multiple CUs A primary interface can have either a point to point or multipoint connection A secondary interface can have only a point to point connection Specify either Point to Point or Multipoint The default setting is Point to Point Site Manager Interface Type page B 2 Setting the TCP Keepalive Parameters The TCP Keepalive Interval parameter specifies how often the router sends a signal to the peer router to check that the peer router is working correctly and can receive messages You enable the parameter by specifying a nonzero value When a keepalive packet goes unacknowledged by the remote peer retransmission begins at the local peer router You should tune the keepalive interval based on the tota2. 308617 14 00 Rev 00 Line Details Implementation Notes Configuring line details for a bisynchronous line is similar to configuring line details for a synchronous line You need to specify the following information Maximum frame size the router can transmit on this line Clock source for the timing signals Speed of the clock source Queue lengths for transmitting and receiving data Control character mode EBCDIC or ASCII For information about configuring line details see Chapter 4 308617 14 00 Rev 00 3 3 Chapter 4 Configuring BTS When you enable BTS default values are in effect for all parameters see Appendix C You can change these values to suit your network requirements The following sections describe your options Note To edit BTS parameters first configure at least one synchronous interface COM on an AN ASN ARN or BN router For ASN routers make sure you are using the Dual Sync or the Dual Sync ISDN BRI network module For BN routers use the Octal Sync module For ARN routers use the Serial adapter module To initially configure an interface or to add additional synchronous interfaces see Configuring and Managing Routers with Site Manager Using the MIB Object ID The Technician Interface allows you to modify parameters by issuing set and commit commands with the MIB object ID This process is equivalent to modifying parameters using Site Manager For more information about using the
3. continued 308617 14 00 Rev 00 A 1 Configuring BSC Transport Services Table A 1 Device Address Table for BSC3 continued Control Unit or Device Position Control Unit Address 17 OxD1 18 0xD2 19 0xD3 20 0xD4 21 OxD5 22 OxD6 23 OxD7 24 0xD8 25 OxD9 26 0x5A 27 0x5B 28 0x5C 29 0x5D 30 Ox5E 31 Ox5F A 2 308617 14 00 Rev 00 Appendix B BTS Parameters BTS Global Parameters Parameter Path Default Options Function Instructions MIB Object ID Enable Configuration Manager gt Protocols gt BOT gt Global Enable Enable Disable Enables or disables BOT on this interface Select Enable or Disable 1 3 6 1 4 1 18 3 5 18 1 2 BTS Interface Parameters Parameter Path Default Options Function Instructions MIB Object ID Enable Configuration Manager gt Protocols gt BOT gt Interfaces Enable Enable Disable Enables or disables BOT on this interface Select Enable or Disable 1 3 6 1 4 1 18 3 5 18 2 1 2 308617 14 00 Rev 00 B 1 Configuring BSC Transport Services Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Interface Attached To Configuration Manager gt Protocols gt BOT gt Interfaces None Primary Secondary Specifies whether this interface connects to a h
4. 4 Limitation of liability IN NO EVENT WILL NORTEL NETWORKS OR ITS LICENSORS BE LIABLE FOR ANY COST OF SUBSTITUTE PROCUREMENT SPECIAL INDIRECT INCIDENTAL OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES RESULTING FROM INACCURATE OR LOST DATA OR LOSS OF USE OR PROFITS ARISING OUT OF OR IN CONNECTION WITH THE PERFORMANCE OF THE SOFTWARE EVEN IF NORTEL NETWORKS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES IN NO EVENT SHALL THE LIABILITY OF NORTEL NETWORKS RELATING TO THE SOFTWARE OR THIS AGREEMENT EXCEED THE PRICE PAID TO NORTEL NETWORKS FOR THE SOFTWARE LICENSE 5 Government Licensees This provision applies to all Software and documentation acquired directly or indirectly by or on behalf of the United States Government The Software and documentation are commercial products licensed on the open market at market prices and were developed entirely at private expense and without the use of any U S Government funds The license to the U S Government is granted only with restricted rights and use duplication or disclosure by the U S Government is subject to the restrictions set forth in subparagraph c 1 of the Commercial Computer Software Restricted Rights clause of FAR 52 227 19 and the limitations set out in this license for civilian agencies and subparagraph c 1 ii of the Rights in Technical Data and Computer Software clause of DFARS 252 227 7013 for agencies of the Department of Defense or their successors whichever is applicable
5. Enabling and Disabling a Connection to a Control Unit You can disable or reenable the connection to a control unit with the Enable parameter If you disable the connection to the control unit the TCP connection remains active but unused until you reenable the connection The default setting is Enable To access this parameter follow this path Site Manager Path Configuration Manager gt Protocols gt BOT gt Interfaces Click on Peer Table The BOT Peer Table Configuration window appears Select a peer connection from the list window Click on CU Table The BOT CU Table Configuration window appears Select a control unit from the list of entries Select the Enable parameter Click on Values Select Enable Disable Click on Apply Click on Done Enable parameter page B 4 308617 14 00 Rev 00 4 9 Configuring BSC Transport Services Editing Line Parameters This section describes the parameters you can modify for each BTS line The parameters are Enable MTU maximum transmission unit size Clock source and clock speed Configured transmit and receive queue length Control character mode Request to send RTS enable External clock speed To edit the line parameters follow this path Site Manager Path Select a port that you have configured for BTS The Edit Connector window appears Select Edit Line The Edit BISYNC Parameters window appears Edit the line parameters Click on OK to save the chan
6. 12 B 9 Local TCP Listen Port parameter 4 7 B 5 MTU Size parameter 4 10 B 7 multipoint configuration 2 4 3 2 4 8 O overview of BSC Transport Services BTS 2 1 P peer entry parameters Connection Originator 4 7 B 5 default values C 1 Enable 4 8 B 4 Local TCP Listen Port 4 7 B 5 Peer IP Address 4 6 B 4 Peer TCP Listen Port 4 7 B 5 Peer IP Address parameter 4 6 B 4 peer routers assigning 3 1 4 6 Peer TCP Listen Port parameter 4 7 B 5 point to point configuration 2 4 product support xvi publications hard copy xv 308617 14 00 Rev 00 R RTS Enable parameter 4 12 B 9 S Serial adapter module 1 1 3 1 4 1 specifying connections to control units 3 2 4 8 starting BTS 1 2 support Nortel Networks xvi T TCP Keepalive Int parameter 4 5 B 3 TCP Keepalive Retry Count parameter 4 5 B 4 TCP Keepalive Retry Timeout parameter 4 5 B 3 technical publications xv technical support xvi Technician Interface 4 1 text conventions xiv Transmission of BSC frames over TCP 2 2 tunneling 2 3 V virtual multipoint configuration 2 5 3 2 4 8 308617 14 00 Rev 00 Index 3
7. 6 Use of Software in the European Community This provision applies to all Software acquired for use within the European Community If Licensee uses the Software within a country in the European Community the Software Directive enacted by the Council of European Communities Directive dated 14 May 1991 will apply to the examination of the Software to facilitate interoperability Licensee agrees to notify Nortel Networks of any such intended examination of the Software and may procure support and assistance from Nortel Networks 7 Term and termination This license is effective until terminated however all of the restrictions with respect to Nortel Networks copyright in the Software and user manuals will cease being effective at the date of expiration of the Nortel Networks copyright those restrictions relating to use and disclosure of Nortel Networks confidential information shall continue in effect Licensee may terminate this license at any time The license will automatically terminate if Licensee fails to comply with any of the terms and conditions of the license Upon termination for any reason Licensee will immediately destroy or return to Nortel Networks the Software user manuals and all copies Nortel Networks is not liable to Licensee for damages in any form solely by reason of the termination of this license 8 Export and Re export Licensee agrees not to export directly or indirectly the Software or related technical data or inf
8. BOT gt Global The Edit BOT Global Parameters window appears Click on Values Select Enable Disable Click on OK Enable parameter page B 1 4 2 308617 14 00 Rev 00 Configuring BTS Customizing BTS Interfaces You can edit the BTS settings on individual interfaces to perform the following tasks Enable and disable a BTS interface e Attach an interface to primary or secondary connections e Select an interface type e Set the TCP keepalive parameters e Delete a BTS interface To edit a BTS interface follow this path Site Manager Path Configuration Manager Protocols BOT Interfaces The BOT Interface window appears Enabling and Disabling BTS Interfaces The Enable parameter allows you to enable or disable BTS on an interface The default setting is Enable To enable or disable BTS interfaces follow Path 1 or Path 2 Site Manager Path 1 Configuration Manager Protocols BOT Interfaces The BOT Interface window appears Select the interface to edit from the upper left window Click on Values Select Enable Disable Enable parameter page B 1 Site Manager Path 2 Select a port that you have configured for BTS The Edit Connector window appears Select Edit Circuit The Circuit Definition window appears Select Protocols or Group Protocols Edit BOT Interface The Edit BOT Interface window appears Click on Values Select Enable Disable Enable parameter page B 1
9. BTS date er ere eee ets GE ada 42 Gousidmigingd Bile Medaces 22 od uia do edi ier p ebd a c dide d ER ecd a DN dq 4 3 Enabling and Disabling BTS Interfaces essssssssssssseneeeneene 4 3 Creating Primary and Secondary Connections sss 4 4 Selecting an ipntei aes WPS sms eerie P sen ERR EP ar a POE 4 4 Setting the TCP Keepalive Parameters TT ida T T TT TT 4 4 electing a EST SCS scp ce RE 4 6 e nO Foar An O 4 6 SPecifing ihe Pear IP AUGIB cansa dina 4 6 Selecting ihe ee ee Ur TE 4 7 seing qo TOP Listen POS cra oa 4 7 Enabling and Disabling BTS Peer Connections sse 4 8 Greating Connections to Control UniS cuan 4 8 Entering the Control Unit Address ibn nas 4 9 Enabling and Disabling a Connection to a Control Unit ii 4 9 EAT LE PANAS uc A AA Rn 4 10 Enabling the Line E EE sonia acia T ben TT vere 4 10 Setting the Transmission Frame Size a 4 10 Adjusting the Bisynchronous Timing Signals sese 4 11 Adjusting the LE e 4 11 Setting the Control Character Mode AA 4 12 Enabling and Disabling RTS and CTS Signal Detection TEE iia eines eee 4 12 vi 308617 14 00 Rev 00 Appendix A Control Unit Addresses Appendix B BTS Parameters BTS Global Farame ci oi B 1 ETS TOSS Parma id ba B 1 BI Peer Tabla Parametrs A ba b pH kas B 4 BOTGU Table Parenter E a ETE B 6 E Mail EE E D T PR HR B 7 Appendix C
10. Creating Connections to Control Units In a multipoint or virtual multipoint configuration you must configure the BOT CU Table on the primary router This table contains the addresses of each control unit that the host can access You cannot configure the BOT CU Table if the interface Connects to a control unit Makes a point to point connection In a virtual multipoint configuration the primary router can have more than one peer router Each peer router has a corresponding entry in the BOT Peer Table For each entry you must specify the control units that the host can access To access the CU Table follow this path Site Manager Path Configuration Manager Protocols BOT Interfaces Click on Peer Table The BOT Peer Table Configuration window appears Select a peer connection from the list window Click on CU Table The BOT CU Table Configuration window appears Click on Add The Add BOT CU Entry window appears 4 8 308617 14 00 Rev 00 Configuring BTS Entering the Control Unit Address The control unit address is a hexadecimal value in the range 0x40 to OxFE For guidelines see Appendix A Site Manager Control Unit Address hex parameter page B 6 When you add an entry to the BOT CU Table the software automatically enables the TCP connection to that control unit To disable the connection later see the next section Enabling and Disabling a Connection to a Control Unit
11. Default Values for BTS Parameters Index 308617 14 00 Rev 00 vii Figures Figure z i Tunneling o BSO FAMOSA 2 3 Figure 2 2 BTS Point to Point Configuration ssssssssseeeenne 2 4 Figure 2 3 BTS Multipoint Configuitillon sossen 2 5 Figure 2 4 BTS Virtual Multipoint Configuration 308617 14 00 Rev 00 Tables Table A 1 Device Address Table for BSC3 Table C 1 Interface Parameters B E dczosrd kcicu2 rDrT em C 1 Table C 3 Control Unit Parameters Table C 4 Line Parameters 308617 14 00 Rev 00 xi Preface This guide describes how to configure router software to transport binary synchronous communication BSC data over a multiprotocol backbone network Before You Begin If you configure and manage BSC Transport Services BTS for Nortel Networks routers you need to read this guide Before using this guide you must complete the following procedures For a new router e Install the router refer to the installation manual that came with your router e Connect the router to the network and create a pilot configuration file refer to Quick Starting Routers Configuring BayStack Remote Access or Connecting ASN Routers to a Network Make sure you are running the latest version of Nortel Networks Site Manager and router software For instructions refer to the upgrade guide 308617 14 00 Rev 00 xiii Configuring BSC Transport Services Text Conventions This guide uses the follo
12. been damaged as a result of accident misuse or abuse The Licensee assumes all responsibility for selection of the Software to achieve Licensee s intended results and for the installation use and results obtained from the Software Nortel Networks does not warrant a that the functions contained in the software will meet the Licensee s requirements b that the Software will operate in the hardware or software combinations that the Licensee may select c that the operation of the Software will be uninterrupted or error free or d that all defects in the operation of the Software will be corrected Nortel Networks is not obligated to remedy any Software defect that cannot be reproduced with the latest Software release These warranties do not apply to the Software if it has been i altered except by Nortel Networks or in accordance with its instructions ii used in conjunction with another vendor s product resulting in the defect or iii damaged by improper environment abuse misuse accident or negligence THE FOREGOING WARRANTIES AND LIMITATIONS ARE EXCLUSIVE REMEDIES AND ARE IN LIEU OF ALL OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING WITHOUT LIMITATION ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE Licensee is responsible 308617 14 00 Rev 00 iii for the security of its own data and information and for maintaining adequate procedures apart from the Software to reconstruct lost or altered files data or programs
13. the address of the control unit Enter the address of the control unit in hexadecimal format 1 3 6 1 4 1 18 3 5 18 3 1 8 Enable Configuration Manager gt Protocols gt BOT gt Interfaces gt Peer Table gt CU Table Enable Enable Disable Enables or disables this control unit Select Enable or Disable 1 3 6 1 4 1 18 3 5 18 4 1 2 B 6 308617 14 00 Rev 00 BTS Parameters Line Parameters Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Enable Configuration Manager Select connector Edit Line Enable Enable Disable Enables or disables this line Select Enable or Disable 1 3 6 1 4 1 18 3 4 27 1 1 2 MTU Size Configuration Manager Select connector Edit Line 1580 1 to 4568 bytes Specifies the largest frame that the router can transmit across this bisynchronous line Specify a value appropriate for the network 1 3 6 1 4 1 18 3 4 27 1 1 4 Clock Source Configuration Manager Select connector Edit Line External External Internal Specifies the origin of the bisynchronous timing signals If you set this parameter to Internal the router supplies the required timing signals If you set this parameter to External an external network device supplies the required timing signals S
14. value to the compiled ring size Accept the default value 0 or enter a value in the range 0 to 255 that is appropriate for this line Site Manager Configured Receive Q Length parameter page B 8 Setting the Control Character Mode The Control Character Mode parameter specifies the code set that the BSC protocol uses The bisynchronous link layers use control characters to identify frames EBCDIC is more common than ASCII Select EBCDIC or ASCII The default setting is EBCDIC Site Manager Control Character Mode parameter page B 9 Enabling and Disabling RTS and CTS Signal Detection The RTS Enable parameter enables or disables the detection of request to send RTS and clear to send CTS signals on this interface Set this parameter to enable if the connected device for example a modem uses RTS CTS flow control The default setting is Disable Site Manager RTS Enable parameter page B 9 4 12 308617 14 00 Rev 00 Appendix A Control Unit Addresses To specify a connection to a control unit you enter the control unit s address Table A 1 shows the addresses to use for BSC3 Table A 1 Device Address Table for BSC3 Control Unit or Device Position Control Unit Address 0 0x40 1 0xC1 2 0xC2 3 0xC3 4 0xC4 5 0xC5 6 0xC6 7 0xC7 8 0xC8 9 0xC9 10 0x4A 11 0x4B 12 0x4C 13 0x4D 14 0x4E 15 0x4F 16 0x50
15. 4 27 1 1 10 Configured Receive Q Length Configuration Manager Select connector Edit Line 0 0 to 255 Specifies the length of the receive queue If you set this parameter to 0 the router selects an appropriate value otherwise the router uses the length you specify If you enter a value that is larger than the number of buffers the router reserves for receiving data the compiled ring size the router reduces the value to the compiled ring size Accept the default or enter a value that is appropriate for this line 1 3 6 1 4 1 18 3 4 27 1 1 11 B 8 308617 14 00 Rev 00 Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID BTS Parameters Control Character Mode Configuration Manager Select connector Edit Line EBCDIC EBCDIC ASCII Specifies the code set that the BSC protocol uses The BSC link layers use control characters to identify frames EBCDIC is more common than ASCII Select EBCDIC or ASCII 1 3 6 1 4 1 18 3 4 27 1 1 12 External Clock Speed Configuration Manager gt Select connector gt Edit Line 9600 1200 to 19200 bits sec Sets the clock speed when you use an external source to supply clocking signals Enter the value that most closely corresponds to the speed of the external clock and set t
16. B 8 Connection Originator parameter 4 7 B 5 connections to control units disabling 4 9 enabling 4 9 specifying 3 2 4 8 A 1 Control Character Mode parameter 4 12 B 9 Control Unit Address parameter 4 9 B 6 control unit parameters Control Unit Address 4 9 B 6 default values C 2 Enable 4 9 B 6 control units 2 2 addresses A 1 conventions text xiv customer support xvi Index 1 D deleting BTS from all circuits 1 2 BTS on an interface 4 6 disabling a Bisync line 4 10 B 7 connections to control units 4 9 connections to peer routers 4 8 Dual Sync module 1 1 Dual Sync ISDN BRI module 1 1 E editing BTS global parameters 4 2 interface parameters 4 3 to 4 6 Enable parameter for BTS 4 2 B 1 for control unit 4 9 B 6 for line 4 10 B 7 for peer entry 4 8 B 4 enabling a Bisync line 4 10 B 7 connections to control units 4 9 connections to peer routers 4 8 External Clock Speed parameter 4 11 B 9 H host BSC 2 2 l implementation notes 3 1 Interface Attached To parameter 4 4 B 2 Interface Type parameter 4 4 B 2 interfaces deleting BTS 4 6 Index 2 L line details 3 3 line parameters Clock Source 4 11 B 7 Clock Speed 4 11 B 8 Configured Receive Q Length 4 12 B 8 Configured Transmit Q Length 4 12 B 8 Control Character Mode 4 12 B 9 default values C 2 Enable 4 10 B 7 External Clock Speed 4 11 B 9 MTU Size 4 10 B 7 RTS Enable 4
17. BOT Click on OK Site Manager returns you to the Configuration Manager window BTS interfaces are no longer operating on the platform 1 2 308617 14 00 Rev 00 Chapter 2 BSC Transport Services Overview BTS transmits binary synchronous communication BSC data over a multiprotocol backbone network A BTS configuration on the router executes the protocol application Bisync over TCP BOT BTS operates on the Nortel Networks AN ARN ASN and BN routers running Software Version 11 01 or later In the 1960s IBM introduced the BSC protocol to transmit data between mainframes and remote devices Since then IBM and many other vendors have been using the BSC protocol with many types of computers and devices BTS users of BSC equipment can improve their networks by e Integrating BSC devices into an existing network of newer client server services Eliminating direct BSC lines which are expensive and often underused Ensuring an extremely reliable and resilient method of data transmission via TCP IP BSC Protocol BSC typically operates over low speed lines up to 19 2 Kb s The BSC protocol is character oriented and assumes 8 bit characters It uses EBCDIC or less commonly ASCII and other code sets for data transmission 308617 14 00 Rev 00 2 1 Configuring BSC Transport Services There are two main versions of the BSC protocol e BSC3 Interactive BSC 3270 Its primary secondary architecture specifies that the p
18. BayRS Version 14 00 Part No 308617 14 00 Rev 00 September 1999 4401 Great America Parkway Santa Clara CA 95054 Configuring BSC Transport Services NORTEL NETWORKS Copyright 1999 Nortel Networks All rights reserved Printed in the USA September 1999 The information in this document is subject to change without notice The statements configurations technical data and recommendations in this document are believed to be accurate and reliable but are presented without express or implied warranty Users must take full responsibility for their applications of any products specified in this document The information in this document is proprietary to Nortel Networks NA Inc The software described in this document is furnished under a license agreement and may only be used in accordance with the terms of that license A summary of the Software License is included in this document Trademarks NORTEL NETWORKS is a trademark of Nortel Networks Bay Networks AN and BN are registered trademarks and ARN and ASN are trademarks of Nortel Networks All other trademarks and registered trademarks are the property of their respective owners Restricted Rights Legend Use duplication or disclosure by the United States Government is subject to restrictions as set forth in subparagraph c 1 ii of the Rights in Technical Data and Computer Software clause at DFARS 252 227 7013 Notwithstanding any other license agreement that may pertai
19. ENTIRE AND EXCLUSIVE AGREEMENT BETWEEN NORTEL NETWORKS AND LICENSEE WHICH SUPERSEDES ALL PRIOR ORAL AND WRITTEN AGREEMENTS AND COMMUNICATIONS BETWEEN THE PARTIES PERTAINING TO THE SUBJECT MATTER OF THIS AGREEMENT NO DIFFERENT OR ADDITIONAL TERMS WILL BE ENFORCEABLE AGAINST NORTEL NETWORKS UNLESS NORTEL NETWORKS GIVES ITS EXPRESS WRITTEN CONSENT INCLUDING AN EXPRESS WAIVER OF THE TERMS OF THIS AGREEMENT iv 308617 14 00 Rev 00 Contents Preface rn pes De ENEE essa sl LT xiii PTO E AAA E e cada ea deep meant eee T xiv PO DIC EMT TE UU I TT XV Hard Gopy Technical WS BS Luis deducted pedit nierkdu ke a haan Sx ox d x E KO XV A xvi Chapter 1 Starting BSC Transport Services Preparing a Coniiguration FiK NT 1 1 Mo RE E 1 2 Deleting TS from thie TEE 1 2 Chapter 2 BSC Transport Services Overview O 2 1 Hosis and Comro LAS rasa mapas 2 2 JMacsmitting BSG Frames eel TOP uus eeepc ro EO oor alea dec Pd deor na ab ld 2 2 Point to Point and Multipoint CODBOUESIOES e cuossiicuni rr burned dca 2 4 Point to Point DOT eem 2 4 Kee EIERE sioe ibo rc eene 2 4 intel Mulipolnt CG D H RE 2 5 Chapter 3 Implementation Notes ETE REED cada UR NR Kcd nin Gb aea rad donna duc n aa d 3 1 Peer AQUISES e 3 1 canmecions to Domral WIS EE 3 2 Bis OPTED o A E ESSERE 3 3 308617 14 00 Rev 00 V Chapter 4 Configuring BTS Using Me MIB ORG gn M 4 1 PCCESSING BTS EE eegnen lenin A 4 2 Globally Enabling and Disabling
20. P ISDN BRI MTU RTS TCP American Standard Code for Information Interchange binary synchronous communication binary synchronous communication BSC over TCP IP Bisync over TCP binary synchronous communication BSC Transport Services clear to send control unit extended binary coded decimal interchange code front end processor File Transfer Protocol Integrated Services Digital Network Basic Rate Interface maximum transmission unit request to send Transmission Control Protocol Hard Copy Technical Manuals You can print selected technical manuals and release notes free directly from the Internet Go to support baynetworks com library tpubs Find the product for which you need documentation Then locate the specific category and model or version for your hardware or software product Using Adobe Acrobat Reader you can open the manuals and release notes search for the sections you need and print them on most standard printers You can download Acrobat Reader free from the Adobe Systems Web site www adobe com 308617 14 00 Rev 00 XV Configuring BSC Transport Services You can purchase selected documentation sets CDs and technical publications through the collateral catalog The catalog is located on the World Wide Web at support baynetworks com catalog html and is divided into sections arranged alphabetically The CD ROMs section lists available CDs e The Guides Books section lists books
21. Partner Be sure to set this parameter on the peer router to the other value 1 3 6 1 4 1 18 3 5 18 3 1 6 Local TCP Listen Port Configuration Manager Protocols BOT Interfaces Peer Table Add None 1000 to 9999 Specifies the TCP port number that this router uses to establish a TCP connection This parameter is active only when you set the Connection Originator parameter to Partner Enter a valid available port number for this router Be sure to use the same value for the Peer TCP Listen Port parameter on the peer router 1 3 6 1 4 1 18 3 5 18 3 1 7 Peer TCP Listen Port Configuration Manager Protocols BOT Interfaces Peer Table Add None 1000 to 9999 Specifies the TCP port that the peer router uses to establish a TCP connection This parameter is active only when you set the Connection Originator parameter to Self Enter a valid available port number for the peer router Be sure to use the same value for the Local TCP Listen Port parameter on the peer router 1 3 6 1 4 1 18 3 5 18 3 1 8 308617 14 00 Rev 00 B 5 Configuring BSC Transport Services BOT CU Table Parameters Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Control Unit Address Configuration Manager gt Protocols gt BOT gt Interfaces gt Peer Table gt CU Table gt Add None 0x40 to OxFE Specifies
22. RCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE In addition the program and information contained herein are licensed only pursuant to a license agreement that contains restrictions on use and disclosure that may incorporate by reference certain limitations and notices imposed by third parties ii 30861 7 14 00 Rev 00 Nortel Networks NA Inc Software License Agreement NOTICE Please carefully read this license agreement before copying or using the accompanying software or installing the hardware unit with pre enabled software each of which is referred to as Software in this Agreement BY COPYING OR USING THE SOFTWARE YOU ACCEPT ALL OF THE TERMS AND CONDITIONS OF THIS LICENSE AGREEMENT THE TERMS EXPRESSED IN THIS AGREEMENT ARE THE ONLY TERMS UNDER WHICH NORTEL NETWORKS WILL PERMIT YOU TO USE THE SOFTWARE If you do not accept these terms and conditions return the product unused and in the original shipping container within 30 days of purchase to obtain a credit for the full purchase price 1 License Grant Nortel Networks NA Inc Nortel Networks grants the end user of the Software Licensee a personal nonexclusive nontransferable license a to use the Software either on a single computer or if applicable on a single authorized device identified by host ID for which it was originally acquired b to copy the Software solely for backup purposes in support of authorized use of the Software and c to use and copy th
23. Table Configuration window appears Click on Add The Add BOT Peer Entry window appears Configure the parameters in the window Click on OK The BOT Peer Table Configuration window reappears with the peer entry that you just added When you configure a peer router the software automatically enables the TCP connection to that router To later disable a connection to a peer router refer to Enabling and Disabling BTS Peer Connections later in this section Specifying the Peer IP Address The Peer IP Address parameter allows you to specify the IP address of a peer router Use any valid IP address in dotted decimal notation Site Manager Peer IP Address parameter page B 4 4 6 308617 14 00 Rev 00 Configuring BTS Selecting the Connection Originator When you configure a connection you need to decide which router initiates the TCP connection either the local peer router or the remote peer router If the local peer router is the TCP connection initiator then you configure it as Self and you configure the remote peer as Partner The Connection Originator parameter setting controls whether the local router Self or the remote peer router Partner initiates the TCP connection Select Self or Partner Be sure to set this parameter on the peer router to the other value There is no default setting Site Manager Connection Originator parameter page B 5 Setting the TCP Listen Ports The Lo
24. Technician Interface to access the MIB refer to Using Technician Interface Software Caution The Technician Interface does not verify that the value you enter for a parameter is valid Entering an invalid value can corrupt your configuration 308617 14 00 Rev 00 4 1 Configuring BSC Transport Services Accessing BTS Parameters In Site Manager either of these paths leads you to the BTS parameters Site Manager Path 1 Configuration Manager Protocols BOT Site Manager Path 2 Select a synchronous port that you have configured for BTS The Edit Connector window appears Select Edit Circuit The Circuit Definition window appears Use the BTS Circuit menu to access BTS parameters BTS parameters fall into the following categories e Global Enable and Disable Interface e Peer e Control Unit Line Globally Enabling and Disabling BTS You can globally enable or disable the system software mechanisms that use the BTS interface on a synchronous circuit The Disable option switches every BTS interface on the router into an inactive state The Enable option reinitializes every BTS interface on the router with each interface maintaining the most recent settings The actual operating state of each interface further depends on the current up down state of the associated physical circuit To globally enable or disable BTS follow this path Site Manager Path Configuration Manager gt Protocols gt
25. al Sync or the Dual Sync ISDN BRI net module For BN routers select the Octal Sync module For ARN routers select the Serial adapter module or any of the following expansion modules TRI Serial Ethernet TRI Serial Token Ring TRI Serial or Token Ring TRI Serial DCM 4 Select the module connector on which you want to use BTS You can configure BTS on any COM port not just COMI and COM2 Refer to Configuring and Managing Routers with Site Manager for instructions on these procedures 308617 14 00 Rev 00 1 1 Configuring BSC Transport Services Starting BTS To start BTS on an interface select the synchronous connector on which you are enabling BTS and then follow the path described in this box Site Manager Path From the WAN Protocols window that appears after you select the connector select BOT Click on OK The BOT Interfaces window appears Click on OK to accept the default values or edit the following parameters to customize the configuration refer to Appendix B and then click on OK Enable page B 1 Interface Attached To page B 2 Interface Type page B 2 TCP Keepalive Int page B 3 TCP Keepalive Retry Timeout page B 3 TCP Keepalive Retry Count page B 4 Deleting BTS from the Platform To delete BTS from all circuits on which it is currently configured follow this path Site Manager Path Configuration Manager Protocols BOT Delete BOT A window prompts Do you REALLY want to delete
26. ble BOT you must assign at least one peer router If you set up a point to point BOT interface you can assign only one peer router If however you set up a multipoint BOT interface you can assign multiple peer routers either when you enable BOT or later 308617 14 00 Rev 00 3 1 Configuring BSC Transport Services When you assign a peer router you must specify e The IP address of the peer router e Which of the two routers initiates the TCP connection e The TCP ports the routers use for BOT Caution Do not specify a TCP port that you have assigned to another application You must also configure the peer router so that the information for the router pair matches For information about assigning peer routers see Chapter 4 Connections to Control Units You can connect up to 32 control units on the same line that links to a secondary router The actual performance on the line directly relates to the number of control units you connect In a multipoint or virtual multipoint configuration you must configure the BOT CU table on the primary router This table contains the address of each control unit the host can access You cannot configure the BOT CU table if the interface Connects to a control unit Makes a point to point connection For a virtual multipoint configuration the primary router can have more than one peer router For each peer router you must specify the control units that the host can access
27. cal TCP Listen Port parameter specifies the TCP port number that this router uses to establish a TCP connection This parameter is active only when you set the Connection Originator parameter to Partner Enter a valid available port number for this router in the range 1000 to 9999 Be sure to use the same value for the Peer TCP Listen Port parameter on the peer router Site Manager Local TCP Listen Port parameter page B 5 The Peer TCP Listen Port parameter specifies the TCP port that the peer router uses to establish a TCP connection This parameter is active only when you set the connection originator parameter to Self Enter an available port number for the peer router in the range 1000 to 9999 Be sure to use the same value for the Local TCP Listen Port parameter on the peer router Site Manager Peer TCP Listen Port parameter page B 5 308617 14 00 Rev 00 4 7 Configuring BSC Transport Services Enabling and Disabling BTS Peer Connections When you configure a peer router the local router automatically enables the TCP connection to the peer To disable and reenable the connection to a peer router follow this path Site Manager Path Configuration Manager Protocols BOT Interfaces Click on Peer Table The BOT Peer Table Configuration window appears Select a peer connection from the list window Click on Values Select Enable Disable Click on Apply Enable parameter page B 4
28. ce parameter to Internal Site Manager Clock Speed parameter page B 8 The External Clock Speed parameter sets the clock speed when you use an external source to supply clocking signals Enter the value in the range 1200 to 19200 bits sec that most closely corresponds to the speed of the external clock and set the Clock Source parameter to external The default setting is 9600 Site Manager External Clock Speed parameter page B 9 Adjusting the Transmission Queues The Configured Transmit Queue Length parameter specifies the length of the transmit queue If you set this parameter to 0 the router selects an appropriate value otherwise the router uses the length you specify If you enter a value that is larger than the number of buffers the router reserves for transmitting data the router reduces the value to a usable size 308617 14 00 Rev 00 4 11 Configuring BSC Transport Services Accept the default value 0 or enter a value in the range 0 to 255 that is appropriate for this line Site Manager Configured Transmit Q Length parameter page B 8 The Configured Receive Queue Length parameter specifies the length of the receive queue If you set this parameter to 0 the router selects an appropriate value otherwise the router uses the length you specify If you enter a value that is larger than the number of buffers the router reserves for receiving data the compiled ring size the router reduces the
29. e associated user manual solely in support of authorized use of the Software by Licensee This license applies to the Software only and does not extend to Nortel Networks Agent software or other Nortel Networks software products Nortel Networks Agent software or other Nortel Networks software products are licensed for use under the terms of the applicable Nortel Networks NA Inc Software License Agreement that accompanies such software and upon payment by the end user of the applicable license fees for such software 2 Restrictions on use reservation of rights The Software and user manuals are protected under copyright laws Nortel Networks and or its licensors retain all title and ownership in both the Software and user manuals including any revisions made by Nortel Networks or its licensors The copyright notice must be reproduced and included with any copy of any portion of the Software or user manuals Licensee may not modify translate decompile disassemble use for any competitive analysis reverse engineer distribute or create derivative works from the Software or user manuals or any copy in whole or in part Except as expressly provided in this Agreement Licensee may not copy or transfer the Software or user manuals in whole or in part The Software and user manuals embody Nortel Networks and its licensors confidential and proprietary intellectual property Licensee shall not sublicense assign or otherwise disclose to any third party
30. elect the clocking mode as appropriate for the network Be sure to attach the appropriate cable to your router for an internal or external clocking source see the cable guide for information 1 3 6 1 4 1 18 3 4 27 1 1 7 308617 14 00 Rev 00 B 7 Configuring BSC Transport Services Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Clock Speed Configuration Manager Select connector Edit Line 9600 1200 B 2400 B 4800 B 7200 B 9600 B 19200 B Sets the clock speed when you use the router to supply clocking signals Set the Clock Speed parameter to the desired data transmission rate across the bisynchronous line and set the Clock Source parameter to Internal 1 3 6 1 4 1 18 3 4 27 1 1 8 Configured Transmit Q Length Configuration Manager Select connector Edit Line 0 0 to 255 Specifies the length of the transmit queue If you set this parameter to 0 the router selects an appropriate value otherwise the router uses the length you specify If you enter a value that is larger than the number of buffers the router reserves for transmitting data the compiled ring size the router reduces the value to the compiled ring size Accept the default or enter a value that is appropriate for this line 1 3 6 1 4 1 18 3
31. er Mode EBCDIC RTS Enable Disabled External Clock Speed 9600 C 2 308617 14 00 Rev 00 A acronyms xv assigning peer routers 3 1 4 6 B BOT Bisync over TCP control unit connection parameters Control Unit Address 4 9 B 6 Enable 4 9 B 6 global parameters Enable and Disable 4 2 interface parameters default values C 1 Enable 4 2 4 3 B 1 Interface Attached To 4 4 B 2 Interface Type 4 4 4 5 B 2 TCP Keepalive Int 4 5 B 3 TCP Keepalive Retry Count 4 5 B 4 TCP Keepalive Retry Timeout 4 5 B 3 line parameters Clock Source 4 11 B 7 Clock Speed 4 11 B 8 Configured Receive Q Length 4 12 B 8 Configured Transmit Q Length 4 12 B 8 Control Character Mode 4 12 B 9 Enable 4 10 B 7 External Clock Speed 4 11 B 9 MTU Size 4 10 B 7 RTS Enable 4 12 B 9 peer table parameters Connection Originator 4 7 B 5 Enable 4 8 B 4 Local TCP Listen Port 4 7 B 5 Peer IP Address 4 6 B 4 Peer TCP Listen Port 4 7 B 5 30861 7 14 00 Rev 00 Index BSC binary synchronous communication host 2 2 protocol 2 1 BSC1 overview 2 2 BSC3 overview 2 2 BTS BSC Transport Services parameters accessing BOT in Site Manager 4 2 preparing a configuration file for 1 1 supported network modules 4 1 supported routers 1 1 4 1 C Clock Source parameter 4 11 B 7 Clock Speed parameter 4 11 B 8 Configured Receive Q Length parameter 4 12 B 8 Configured Transmit Q Length parameter 4 12
32. ges Enabling the Line The Enable parameter enables and disables the line on which you have BTS running The default setting is Enable Site Manager Enable parameter page B 6 Setting the Transmission Frame Size The MTU Size parameter specifies the largest frame that the router can transmit across this bisynchronous line Enter a value in the range 1 to 4568 The default setting is 1580 Site Manager MTU Size parameter page B 7 4 10 308617 14 00 Rev 00 Configuring BTS Adjusting the Bisynchronous Timing Signals The Clock Source parameter specifies the origin of the bisynchronous timing signals If you set this parameter to Internal this router supplies the required timing signals If you set this parameter to External an external network device supplies the required timing signals The default setting is External Select the clocking mode as appropriate for the network Be sure to attach the appropriate cable to your router for either an internal or external clocking source for information see the Cable Guide Site Manager Clock Source parameter page B 7 The Clock Speed parameter sets the clock speed when you use the router to supply clocking signals The allowable settings are 1200 2400 4800 7200 9600 and 19200 The default setting is 9600 Set the Clock Speed parameter to the desired data transmission rate across the bisynchronous line and set the Clock Sour
33. he Clock Source parameter to External 1 3 6 1 4 1 18 3 4 27 1 1 15 RTS Enable Configuration Manager gt Select connector gt Edit Line Disable Enable Disable Enables or disables the detection of request to send RTS and clear to send CTS signals on this interface Set this parameter to Enable if the connected device for example a modem uses RTS CTS flow control 1 3 6 1 4 1 18 3 4 27 1 1 14 308617 14 00 Rev 00 B 9 Appendix C Default Values for BTS Parameters Tables C 1 through C 4 list the Site Manager default parameter settings for BTS Table C 1 Interface Parameters Parameter Default Enable Enable Interface Attached To None Interface Type Point to Point TCP Keepalive Int erval 120 seconds TCP Keepalive Retry Timeout 4 seconds TCP Keepalive Retry Count 5 Table C 2 Peer Entry Parameters Parameter Default Peer IP Address None Connection Originator None Local TCP Listen Port None Peer TCP Listen Port None Enable Enable 308617 14 00 Rev 00 C 1 Configuring BSC Transport Services Table C 3 Control Unit Parameters Parameter Default Control Unit Address None Enable Enable Table C 4 Line Parameters Parameter Default Enable Enable MTU Size 1580 Clock Source External Clock Speed 9600 Configured Transmit Q Length 0 Configured Receive Q Length 0 Control Charact
34. ime it takes to send and receive acknowledgment from the remote peer Since keepalive packets are only sent on idle lines increasing the keepalive interval may decrease the cost of an idle network In busy networks the keepalive interval is not necessary Frequent traffic for TCP transmission performs the same function as a keepalive setting Enter a value appropriate for the network We recommend that you set this parameter to the same value on the peer router to maintain synchronization 1 3 6 1 4 1 18 3 5 18 2 1 9 TCP Keepalive Retry Timeout sec Configuration Manager gt Protocols gt BOT gt Interfaces 4 0 to 600 seconds Specifies the maximum time between successive retransmissions of keepalive packets If an acknowledgment is not received by the local peer router within the TCP keepalive retry timeout the local peer router retransmits the keepalive packet The router continues to retransmit keepalive packets at every TCP keepalive retry timeout until it receives an acknowledgment from the remote peer or until TCP reaches the keepalive retry count setting Enter a value in the range 0 to 600 1 3 6 1 4 1 18 3 5 18 2 1 10 308617 14 00 Rev 00 B 3 Configuring BSC Transport Services Parameter Path Default Options Function Instructions MIB Object ID TCP Keepalive Retry Count Configuration Manager Protocols BOT Interfaces 5 0 to 99 seconds Specifies the number of TCP attempts to establ
35. ish or maintain a connection If TCP does not receive an acknowledgment after a series of retries it declares the connection inoperable and informs BOT Enter a value in the range 0 to 99 seconds 1 3 6 1 4 1 18 3 5 18 2 1 11 BTS Peer Table Parameters Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Enable Configuration Manager Protocols BOT Interfaces Peer Table Enable Enable Disable Enables or disables the TCP connection to this peer router interface Select Enable or Disable 1 3 6 1 4 1 18 3 5 18 3 1 2 Peer IP Address Configuration Manager Protocols BOT Interfaces Peer Table Add None Any valid IP address Specifies the IP address of the peer router Enter the peer router s IP address in dotted decimal notation 1 3 6 1 4 1 18 3 5 18 3 1 5 B 4 308617 14 00 Rev 00 Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID BTS Parameters Connection Originator Configuration Manager Protocols BOT Interfaces Peer Table Add None Self Partner Determines whether this router Self or the peer router Partner initiates the TCP connection Select Self or
36. l time it takes to send and receive acknowledgment from the remote peer Since keepalive packets are only sent on idle lines increasing the keepalive interval may decrease the cost of an idle network In busy networks the keepalive interval is not necessary Frequent traffic for TCP transmission performs the same function as a keepalive setting 4 4 308617 14 00 Rev 00 Configuring BTS Enter a value appropriate for the network in the range 0 to 86400 seconds We recommend that you set this parameter to the same value on the peer router to maintain synchronization The default setting is 120 seconds Site Manager TCP Keepalive Int sec page B 3 The TCP Keepalive Retry Timeout parameter specifies the maximum time between successive retransmissions of keepalive packets If an acknowledgment is not received by the local peer router within the TCP keepalive retry timeout the local peer router retransmits the keepalive packet The router continues to retransmit keepalive packets at every TCP keepalive retry timeout until it receives an acknowledgment from the remote peer or until TCP reaches the keepalive retry count setting Enter a value in the range 0 to 600 seconds The default setting for the TCP Keepalive Retry timeout is 4 seconds Site Manager TCP Keepalive Retry Timeout sec page B 3 TCP determines a lost connection either a failed link with no rerouting possible or the remote router is unavailable when TCP a
37. n to or accompany the delivery of this computer software the rights of the United States Government regarding its use reproduction and disclosure are as set forth in the Commercial Computer Software Restricted Rights clause at FAR 52 227 19 Statement of Conditions In the interest of improving internal design operational function and or reliability Nortel Networks NA Inc reserves the right to make changes to the products described in this document without notice Nortel Networks NA Inc does not assume any liability that may occur due to the use or application of the product s or circuit layout s described herein Portions of the code in this software product may be Copyright 1988 Regents of the University of California All rights reserved Redistribution and use in source and binary forms of such portions are permitted provided that the above copyright notice and this paragraph are duplicated in all such forms and that any documentation advertising materials and other materials related to such distribution and use acknowledge that such portions of the software were developed by the University of California Berkeley The name of the University may not be used to endorse or promote products derived from such portions of the software without specific prior written permission SUCH PORTIONS OF THE SOFTWARE ARE PROVIDED AS IS AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES INCLUDING WITHOUT LIMITATION THE IMPLIED WARRANTIES OF ME
38. on technical topics e The Technical Manuals section lists available printed documentation sets How to Get Help If you purchased a service contract for your Nortel Networks product from a distributor or authorized reseller contact the technical support staff for that distributor or reseller for assistance If you purchased a Nortel Networks service program contact one of the following Nortel Networks Technical Solutions Centers Technical Solutions Center Telephone Number Billerica MA 800 2LANWAN 800 252 6926 Santa Clara CA Valbonne France 800 2LANWAN 800 252 6926 33 4 92 96 69 68 Sydney Australia 61 2 9927 8800 Tokyo Japan 81 3 5402 7041 xvi 308617 14 00 Rev 00 Chapter 1 Starting BSC Transport Services The quickest way to begin using BTS is to enable it with default values for all Bisync over TCP BOT interfaces and peers The sections that follow describe this procedure If you want to modify BOT parameters refer to Chapter 4 See Appendix B for complete descriptions of the BOT parameters as they appear in Site Manager Preparing a Configuration File To enable BTS read Configuring and Managing Routers with Site Manager and 1 Openaconfiguration file 2 Specify router hardware if this is a local mode configuration file Nortel Networks supports BTS on AN ASN ARN and BN platforms 3 Choosealink module For ASN routers select the Du
39. ormation without first obtaining any required export licenses or other governmental approvals Without limiting the foregoing Licensee on behalf of itself and its subsidiaries and affiliates agrees that it will not without first obtaining all export licenses and approvals required by the U S Government i export re export transfer or divert any such Software or technical data or any direct product thereof to any country to which such exports or re exports are restricted or embargoed under United States export control laws and regulations or to any national or resident of such restricted or embargoed countries or ii provide the Software or related technical data or information to any military end user or for any military end use including the design development or production of any chemical nuclear or biological weapons 9 General If any provision of this Agreement is held to be invalid or unenforceable by a court of competent jurisdiction the remainder of the provisions of this Agreement shall remain in full force and effect This Agreement will be governed by the laws of the state of California Should you have any questions concerning this Agreement contact Nortel Networks 4401 Great America Parkway PO Box 58185 Santa Clara California 95054 8185 LICENSEE ACKNOWLEDGES THAT LICENSEE HAS READ THIS AGREEMENT UNDERSTANDS IT AND AGREES TO BE BOUND BY ITS TERMS AND CONDITIONS LICENSEE FURTHER AGREES THAT THIS AGREEMENT IS THE
40. ost primary connection or a control unit secondary connection Select Primary or Secondary 1 3 6 1 4 1 18 3 5 18 2 1 7 Interface Type Configuration Manager gt Protocols gt BOT gt Interfaces Point to Point Point to Point Multipoint Specifies whether the interface has one or many TCP connections Point to point provides one TCP connection to the peer router Multipoint provides many TCP connections to one or more peer routers A multipoint connection can also be one TCP connection with multiple CUs A primary interface can have either a point to point or multipoint connection A secondary interface can have only a point to point connection If this is a primary connection select point to point or multipoint if this is a secondary connection accept point to point 1 3 6 1 4 1 18 3 5 18 2 1 6 B 2 308617 14 00 Rev 00 Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID BTS Parameters TCP Keepalive Int sec Configuration Manager Protocols BOT Interfaces 120 0 to 86400 seconds Specifies how often the router sends a signal to the peer router to check that the peer router is working correctly and can receive messages When a keepalive packet goes unacknowledged by the remote peer retransmission begins at the local peer router You should tune the keepalive interval based on the total t
41. rimary device is responsible for initiating connections and controlling the transmission data e BSC1 Batch BSC 2780 3780 It permits either side to initiate the connection and transfer data Nortel Networks currently supports the BSC3 protocol Hosts and Control Units A BSC host is typically a mainframe computer running the BSC protocol BSC devices communicate with hosts via control units A control unit CU manages the BSC devices that connect to it Transmitting BSC Frames over TCP Data travels from one BSC device to another using two routers a primary router and a secondary router Figure 2 1 A primary router has an interface to the host and a secondary router has an interface to the control units Because you can configure a single router interface as either primary or secondary a router with multiple interfaces can support both primary and secondary operations Figure 2 1 illustrates how a BSC device uses BTS to transmit data to a BSC host 2 2 308617 14 00 Rev 00 BSC Transport Services Overview Host Front end processor m FEP Primary Secondary router router CL e d Tunneling Ethernet BTS0001A Token Ring Figure 2 1 Tunneling of BSC Frames BSC data travels between two routers using a process called tunneling Tunneling is independent of protocol differences between BSC devices and hosts The transfer process works like this 1 A primary router interface
42. rimary router Figure 2 4 Up to 32 control units can connect to the synchronous ports on each secondary router Using a virtual multipoint configuration control units at different sites can communicate with the host via the same line 308617 14 00 Rev 00 2 5 Configuring BSC Transport Services Primary router Host TCP IP A a CS FER Secondary router Secondary Secondary router router a D EH Figure 2 4 BTS Virtual Multipoint Configuration BTS0005A 2 6 308617 14 00 Rev 00 Chapter 3 Implementation Notes This chapter describes basic guidelines for implementing BTS on your network BTS Interfaces You can enable the BOT application only on COMI or COM2 interfaces on AN routers For ASN routers select COMI or COM2 on the Dual Sync module or the Dual Sync ISDN BRI module For ARN routers select the Serial adapter module For BN routers select up to eight COM ports on the Octal Sync module When you enable BOT on an interface you must specify whether the interface e Connects to a host primary connection or a control unit secondary connection e Makes one point to point or many multipoint TCP connections Only a primary interface can have multiple TCP connections Refer to Chapter 1 for information about starting BTS Peer Routers When you ena
43. the Software or any information about the operation design performance or implementation of the Software and user manuals that is confidential to Nortel Networks and its licensors however Licensee may grant permission to its consultants subcontractors and agents to use the Software at Licensee s facility provided they have agreed to use the Software only in accordance with the terms of this license 3 Limited warranty Nortel Networks warrants each item of Software as delivered by Nortel Networks and properly installed and operated on Nortel Networks hardware or other equipment it is originally licensed for to function substantially as described in its accompanying user manual during its warranty period which begins on the date Software is first shipped to Licensee If any item of Software fails to so function during its warranty period as the sole remedy Nortel Networks will at its discretion provide a suitable fix patch or workaround for the problem that may be included in a future Software release Nortel Networks further warrants to Licensee that the media on which the Software is provided will be free from defects in materials and workmanship under normal use for a period of 90 days from the date Software is first shipped to Licensee Nortel Networks will replace defective media at no charge if it is returned to Nortel Networks during the warranty period along with proof of the date of shipment This warranty does not apply if the media has
44. transmits data to a secondary router interface 2 The secondary router encapsulates the BSC data in a TCP IP packet 3 The secondary router transmits the packet over the IP network to the primary router 4 The primary router extracts the BSC data from the TCP IP packet The primary router transmits the BSC data to the BSC host via a front end processor FEP 308617 14 00 Rev 00 2 3 Configuring BSC Transport Services Point to Point and Multipoint Configurations You can use BTS with point to point multipoint and virtual multipoint configurations Point to Point Configuration In a BTS point to point configuration one control unit and one host connect via one pair of routers Figure 2 2 Primary Secondary router H st router Cte M Figure 2 2 BTS Point to Point Configuration BTS0002A Multipoint Configuration In a BTS multipoint configuration up to 32 control units on the same line connect to one host via one pair of routers Figure 2 3 2 4 308617 14 00 Rev 00 BSC Transport Services Overview Primary Secondary router router AN CH COM1 U U U Figure 2 3 BTS0004A BTS Multipoint Configuration Virtual Multipoint Configuration In a virtual BTS multipoint configuration control units connect to secondary routers which link to the host via the p
45. ttempts to deliver data If TCP does not receive an acknowledgment to transmitted keepalive packets after a series of retries it declares the connection inoperable and informs BTS The TCP Keepalive Retry Count is the number of times TCP attempts to establish or maintain a connection Enter a value in the range 0 to 99 The default setting is 5 attempts Site Manager TCP Keepalive Retry Count sec page B 4 308617 14 00 Rev 00 4 5 Configuring BSC Transport Services Deleting a BTS Interface To delete a BTS interface from its associated physical circuit follow this path Site Manager Path At the Configuration Manager window select Circuits Delete Circuit The Circuit List window appears Select the interface to delete from the upper left window Click on Delete The Delete Circuit window appears Click on Delete Note Whenever you delete a BOT interface the router will continue to run TCP if other applications on the router require TCP services Assigning Peer Routers When you enable BTS on a router you must assign at least one peer router If you set up a point to point BTS interface you can assign only one peer router If however you set up a multipoint BTS interface you can assign multiple peer routers either when you enable BTS or later To assign a peer router follow this path Site Manager Path Configuration Manager Protocols BOT Interfaces Select Peer Table The BOT Peer
46. wing text conventions angle brackets gt bold text italic text Screen text separator gt vertical line Indicate that you choose the text to enter based on the description inside the brackets Do not type the brackets when entering the command Example If the command syntax is ping lt ip_address gt you enter ping 192 32 10 12 Indicates text that you need to enter and command names and options Example Enter show ip alerts routes Example Use the dinfo command Indicates file and directory names new terms book titles and variables in command syntax descriptions Where a variable is two or more words the words are connected by an underscore Example If the command syntax is show at lt valid_route gt valid_route is one variable and you substitute one value for it Indicates system output for example prompts and system messages Example set Trap Monitor Filters Shows menu paths Example Protocols gt IP identifies the IP option on the Protocols menu Separates choices for command keywords and arguments Enter only one of the choices Do not type the vertical line when entering the command Example If the command syntax is show ip alerts routes you enter either show ip alerts or show ip routes but not both Xiv 308617 14 00 Rev 00 Acronyms Preface This guide uses the following acronyms ASCII Bisync BOT BSC BTS CTS CU EBCDIC FEP FT
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