HP 11i Manuale Utente

ACC HDLC/LAP-D Protocol User’s GuideEdition 4HP 9000 EISA ComputersManufacturing Part Number: Z7487-90006E0400© Copyright 2000 Hewlett-Packard Company

10ContentsReceivedData...31StatusandErrorMessages...32TerminalRequestStatusCo

111 Overview

12 Chapter1OverviewIntroductionIntroductionThe HDLC/LAP-D Protocol p roduct is the D ata Link or Level 2 l ayerused in conjunction with the Advanced C

Chapter 1 13OverviewReferencesReferencesFor information on installing t he ACC product and how to start up theACC Subsystem, refer to the ACC Installa

14 Chapter1OverviewReferences

152 Software Installation andVerification

16 Chapter2Software Installation and VerificationIntroductionIntroductionThe HDLC/LAP-D protocol is included in the ACC Developer SoftwareSuite produc

Chapter 2 17Software Installation and VerificationSoftware RemovalSoftware RemovalIf a previous version of the HDLC/LAP-D protocol product is already

18 Chapter2Software Installation and VerificationSoftware InstallationSoftware Ins ta llationRunning SwinstallThe ACC software is read from the HP-UX

Chapter 2 19Software Installation and VerificationProduct IdentificationProduct IdentificationThe what utility can b e run on /opt/acc/<card-type&g

2

20 Chapter2Software Installation and VerificationInstallation VerificationInstallation VerificationAsampleconfigurationfile/opt/acc/cfg/lapd_4ch_sampl

Chapter 2 21Software Installation and VerificationInstallation VerificationNOTE For the test described here, the ports that will be logically connecte

22 Chapter2Software Installation and VerificationInstallation VerificationStep 6. The link can now be e nabled and brought up using the z term utility

Chapter 2 23Software Installation and VerificationInstallation VerificationStep 9. The received data can now be displayed:ZTERM> rx list11:49:49 Ms

24 Chapter2Software Installation and VerificationInstallation Verification

253 Using HDLC/LAP-D Protocol

26 Chapter3Using HDLC/LAP-D ProtocolIntroductionIntroductionFor a complete description of the communication formats the reader isreferred to the stand

Chapter 3 27Using HDLC/LAP-D ProtocolGeneral Protocol ProcessingGeneralProtocolProcessingApplication Message HeadersAllapplicationdataistransmitted(or

28 Chapter3Using HDLC/LAP-D ProtocolGeneral Protocol ProcessingTimeout ProcessingFrame timeouts are set in the Select configuration word. The T200 tim

Chapter 3 29Using HDLC/LAP-D ProtocolRequest Specific ProcessingRequest Specific ProcessingTerminal Enable/Disable R equestsEnabling a non-UI terminal

3Legal NoticesThe information in this document is subject to change without notice.Hewlett-Packard makes no warranty of any kind with regard to thisma

30 Chapter3Using HDLC/LAP-D ProtocolRequest Specific ProcessingControl RequestsAll control writes to this protocol share a common format. The first fo

Chapter 3 31Using HDLC/LAP-D ProtocolRequest Specific ProcessingReceived DataWhen I-frames or UI-frames are received, the information field is sent t

32 Chapter3Using HDLC/LAP-D ProtocolStatus and Error MessagesStatus and Err or MessagesHDLC/LAP-D produces a range of buffer status codes and unsolici

Chapter 3 33Using HDLC/LAP-D ProtocolStatus and Error MessagesUnsolicited Status MessagesThis section describe the unsolicited status messages which m

34 Chapter3Using HDLC/LAP-D ProtocolStatus and Error MessagesThe following status messages are sent after an error occurs when thelink is in multiple

Chapter 3 35Using HDLC/LAP-D ProtocolStatus and Error MessagesThe following status messages are used by the protocol to return data inresponse to a co

36 Chapter3Using HDLC/LAP-D ProtocolStatus and Error MessagesWrite Completion Status CodesThe following statuses are returned in response to write req

Chapter 3 37Using HDLC/LAP-D ProtocolStatus and Error MessagesRead Completion Status CodesAll receive completion messages will have the status IO_OK.R

38 Chapter3Using HDLC/LAP-D ProtocolStatus and Error Messages

394 Protocol Specific Configuration

4This software is based in part on the Fourth Berkeley SoftwareDistribution under license from the Regents of the University ofCalifornia.©copyright 1

40 Chapter4Protocol Specific ConfigurationIntroductionIntroductionThis section provides specific information on preparing the networkconfiguration fil

Chapter 4 41Protocol Specific ConfigurationSubchannel-DefinitionSubchannel-DefinitionThis field is for ca rds that support subchannels.A sample Subcha

42 Chapter4Protocol Specific ConfigurationTerminal-DefinitionTer minal-DefinitionEach HDLC/LAP-D Mux channel requires one (and only one)Terminal-Defin

Chapter 4 43Protocol Specific ConfigurationTerminal-Definitionmux:port:subc The port assigned must be configured as above and the ACCcard must have th

44 Chapter4Protocol Specific ConfigurationTerminal-Definitionapplication and can be set to any value desired. Theycan be accessed by the application f

Chapter 4 45Protocol Specific ConfigurationPredefined Configuration ValuesPredefined Configuration ValuesThe following configuration values are curren

46 Chapter4Protocol Specific ConfigurationPoll/Select/Option Configuration ValuesPoll/Select/Option Configuration ValuesThe following parameters for c

Chapter 4 47Protocol Specific ConfigurationPoll/Select/Option Configuration ValuesWhen choosing values for timers, it is preferable to choose the reso

48 Chapter4Protocol Specific ConfigurationPoll/Select/Option Configuration ValuesSelect Word15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0T200 Res T200 Val (I-

Chapter 4 49Protocol Specific ConfigurationPoll/Select/Option Configuration ValuesFirst Option Word15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0T203 Res T203/

5PrefaceThe HDLC/LAP-D Protocol Product is used in conjunction with Hewlett-Packard’s Advanced Communications Controller (ACC) product.Specifically th

50 Chapter4Protocol Specific ConfigurationPoll/Select/Option Configuration ValuesSecond Option Word15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 00SAPI 0TEI0 Un

51A Sample Configuration Files

52 AppendixASample Configuration FilesSample Network Configuration FileSample Network Configur ation FileThe file shown below is the sample network co

Appendix A 53Sample Configuration FilesSample Network Configuration Filets:18:FFh ts:19:FFh ts:20:FFh ts:21:FFh ts:22:FFh ~ts:23:FFh ts:24:FFh ts:25:F

54 AppendixASample Configuration FilesSample Network Configuration File

6Publishing HistoryThe Printing H istory below identifies the edition of this manual and anyupdates that are included. Periodically, update packages a

7OrganizationThis manual contains the following chapters and appendices:Chapter 1 Introduction - presents an overview of the features providedby the H

8Related DocumentationThe documentation available for the Multiprotocol ACC family ofproducts includes the following hardware and software manuals:Har

Contents91. OverviewIntroduction............12ProductFeatures............12Support