Avaya Configuring Data Compression Services Manuel d'utilisateur

Configuring Data Compression ServicesPart No. 117352-E Rev 00March 1999BayRS Version 13.20Site Manager Software Version 7.20 BCC Version 4.20

Configuring Data Compression ServicesC-4117352-E Rev 00show wcp stats allThe show wcp stats all command displays statistical information about the per

Monitoring Software Compression Using the BCC show Command117352-E Rev 00C-5 show wcp stats error1The show wcp stats error1 command displays informati

Configuring Data Compression ServicesC-6117352-E Rev 00show hifn circuitsThe show hifn circuits command displays information about circuits configured

Monitoring Software Compression Using the BCC show Command117352-E Rev 00C-7 show hifn stats errorThe show hifn stats error command displays informati

117352-E Rev 00Index-1Aacronyms, xvBBCC show commandshardware compression, B-1software compression, C-1buffer sizedefined, 3-8modifying, 3-9Buffer Siz

Index-2117352-E Rev 00disablingHi/fn LZS, 3-17wcp, 3-16Eeducational services, xviiEnable parameterHi/fn LZS, A-12WCP circuit, A-9WCP line, A-3enabling

117352-E Rev 00Index-3product support, xviipublications, Bay Networks, xviSshow commandshardware compression, B-1software compression, C-1show hifn ci

117352-E Rev 00xiTablesTable 1-1. Link Modules Supported by FRE-2-060E Processor with Advanced Compression Coprocessor Daughterboard ...

117352-E Rev 00xiii PrefaceData compression is a routing feature that eliminates redundancy in data streams, reducing the amount of bandwidth needed t

Configuring Data Compression Servicesxiv117352-E Rev 00Text ConventionsThis guide uses the following text conventions:angle brackets (< >) Indic

Preface117352-E Rev 00xv AcronymsThis guide uses the following acronyms:separator ( > ) Shows menu paths. Example: Protocols > IP identifies the

Configuring Data Compression Servicesxvi117352-E Rev 00Bay Networks Technical PublicationsYou can now print Bay Networks technical manuals and release

Preface117352-E Rev 00xvii How to Get HelpFor product assistance, support contracts, information about educational services, and the telephone numbers

117352-E Rev 001-1 Chapter 1Starting CompressionThe quickest way to begin using data compression on your network is to enable it with the default conf

ii117352-E Rev 00Bay Networks, Inc.4401 Great America ParkwaySanta Clara, CA 95054Copyright © 1998 Bay Networks, Inc.All rights reserved. Printed in t

Configuring Data Compression Services1-2117352-E Rev 00Summary of Bay Networks Data Compression FeaturesYou can configure both software- and hardware-

Starting Compression117352-E Rev 001-3 • Compression for a BayStack AN platform at 2 x 64 KB/s compressed throughput, full duplex; or 128 KB/s aggrega

Configuring Data Compression Services1-4117352-E Rev 00The type of data compression you configure depends on the upper-layer protocol you want to run

Starting Compression117352-E Rev 001-5 Configuring Software CompressionSoftware compression works on all router platforms and all serial interfaces. A

Configuring Data Compression Services1-6117352-E Rev 00Adding WCP to PPP over a Backup LineTo add WCP compression for PPP services on a backup line fo

Starting Compression117352-E Rev 001-7 For information on configuring PPP, see Configuring PPP Services. For information on configuring dial services,

Configuring Data Compression Services1-8117352-E Rev 00dial/serial/5/1# cwcbox# backup-pool 22backup-pool/22# backup-line serial/5/1backup-line/22/ser

Starting Compression117352-E Rev 001-9 wcpFor example:stack# bri 3/2/1 mode leased-128kbri/3/2/1# lsoleased-line/3/2/1/1bri/3/2/1# leased-line/3/2/1/1

Configuring Data Compression Services1-10117352-E Rev 00Using Site ManagerTo use Site Manager to configure this interface for compression for PPP, fra

Starting Compression117352-E Rev 001-11 Enabling Compression for Frame RelayTo configure software compression on a frame relay interface, complete the

117352-E Rev 00iiiBay Networks, Inc. Software License AgreementNOTICE: Please carefully read this license agreement before copying or using the accom

Configuring Data Compression Services1-12117352-E Rev 00Enabling Compression for X.25To enable WCP on an X.25 interface, you must first add an X.25 se

Starting Compression117352-E Rev 001-13 Configuring Hardware CompressionTo use hardware compression for the BN router, you must have either an octal s

Configuring Data Compression Services1-14117352-E Rev 00Configuring Compression for a BN (Octal Synchronous Link Module)To configure hardware compress

Starting Compression117352-E Rev 001-15 Configuring Compression for an ASNTo configure hardware compression for the ASN, complete the following tasks:

Configuring Data Compression Services1-16117352-E Rev 00For More InformationFor detailed information about Bay Networks data compression, see Chapter

117352-E Rev 002-1 Chapter 2Data Compression OverviewBay Networks data compression services enable you to reduce line costs and improve response times

Configuring Data Compression Services2-2117352-E Rev 00Bay Networks Compression ServicesBay Networks compression services include:• Software-based com

Data Compression Overview117352-E Rev 002-3 Data Compression ArchitectureWCP and Hi/fn LZS use different compression algorithms and protocols. The com

Configuring Data Compression Services2-4117352-E Rev 00Hi/fn LZS AlgorithmHi/fn is a wholly owned subsidiary of Stac, Inc. Bay Networks Hi/fn LZS comp

Data Compression Overview117352-E Rev 002-5 PPP Hi/fn LZS Compression ProtocolPPP uses CCP to negotiate how the router uses the Hi/fn LZS Compression

iv117352-E Rev 00its own data and information and for maintaining adequate procedures apart from the Software to reconstruct lost or altered files, d

Configuring Data Compression Services2-6117352-E Rev 00Hardware Compression for the BNThe BN supports the following compression daughterboards:• AG210

Data Compression Overview117352-E Rev 002-7 • A 128-contexts compression daughterboard or net module can run compression simultaneously over 127 CPC c

Configuring Data Compression Services2-8117352-E Rev 00How Data Compression WorksTo transmit compressed data, the router must complete one or both of

Data Compression Overview117352-E Rev 002-9 Figure 2-1. CCP and WCP Initialization on a PPP LinkRouter A Router B1. PPP interface on network; LCP neg

Configuring Data Compression Services2-10117352-E Rev 00CCP NegotiationsCCP allows the two ends of a PPP connection to negotiate whether to use data c

Data Compression Overview117352-E Rev 002-11 Data TransmissionFor PPP links using WCP, Network Control Protocol (NCP) negotiations and WCP negotiation

Configuring Data Compression Services2-12117352-E Rev 00PPP MultilinkMultilink provides capabilities beyond those of multiline circuits. Multilink con

Data Compression Overview117352-E Rev 002-13 PPP Dial-on-DemandDial-on-demand service enables you to establish a circuit only when you want to transmi

Configuring Data Compression Services2-14117352-E Rev 00When you enable data compression for frame relay on a hybrid circuit, both the bridged and the

Data Compression Overview117352-E Rev 002-15 For more information about Bay Networks dial services, see Configuring Dial Services.X.25 ServicesAn X.25

117352-E Rev 00vContents PrefaceBefore You Begin ...

117352-E Rev 003-1 Chapter 3Customizing Data CompressionWhen you enable data compression, default values are in effect for all parameters. This chapte

Configuring Data Compression Services3-2117352-E Rev 00Allocating Compression Memory for WCPUsing WCP across a network involves allocating memory to m

Customizing Data Compression117352-E Rev 003-3 Using Site ManagerTo specify the compression mode for a line, complete the following tasks:To specify t

Configuring Data Compression Services3-4117352-E Rev 00Maximizing ThroughputEach side of the link has both a compression and decompression history and

Customizing Data Compression117352-E Rev 003-5 History Size with Hardware CompressionHardware compression daughterboards and net modules are available

Configuring Data Compression Services3-6117352-E Rev 00Table 3-3 shows the maximum number of 32 KB contexts each daughterboard or net module can suppo

Customizing Data Compression117352-E Rev 003-7 wcp/3/1#Using Site ManagerTo modify the history size for a line, complete the following tasks:To modify

Configuring Data Compression Services3-8117352-E Rev 00Preventing Data Loss for PPP and Frame RelayBuffer size is the amount of memory allocated to st

Customizing Data Compression117352-E Rev 003-9 Using Site ManagerTo modify the buffer size, complete the following tasks:Customizing Hardware Compress

vi117352-E Rev 00Chapter 2 Data Compression OverviewBay Networks Compression Services ...

Configuring Data Compression Services3-10117352-E Rev 00Selecting Software or Hardware CompressionWhen you configure a VC for compression, the default

Customizing Data Compression117352-E Rev 003-11 Using Site ManagerTo specify hardware or software compression for a line configured with WCP, complete

Configuring Data Compression Services3-12117352-E Rev 00To specify hardware or software compression for an interface configured with Hi/fn LZS compres

Customizing Data Compression117352-E Rev 003-13 Using the BCCTo modify the fallback compression mode, navigate to the appropriate prompt (for example,

Configuring Data Compression Services3-14117352-E Rev 00To modify the fallback compression mode for a Hi/fn LZS interface, complete the following task

Customizing Data Compression117352-E Rev 003-15 Using the BCCTo change the CCP Type, navigate to the ppp prompt (for example, box; serial 2/1; ppp) an

Configuring Data Compression Services3-16117352-E Rev 00Disabling and Reenabling CompressionYou can disable compression on a line or circuit, and then

Customizing Data Compression117352-E Rev 003-17 To disable or reenable WCP on a circuit, complete the following tasks:Disabling and Reenabling Hi/fn L

Configuring Data Compression Services3-18117352-E Rev 00Deleting Data Compression from a RouterTo delete compression from all circuits on the router,

117352-E Rev 00A-1 Appendix ASite Manager ParametersThis appendix contains the Site Manager parameter descriptions for data compression services. You

117352-E Rev 00viiChapter 3 Customizing Data CompressionAllocating Compression Memory for WCP ...

Configuring Data Compression ServicesA-2117352-E Rev 00The Technician Interface allows you to modify parameters by issuing set and commit commands wit

Site Manager Parameters117352-E Rev 00A-3 To access the WCP Line Interfaces List window, complete the following tasks:The parameter descriptions follo

Configuring Data Compression ServicesA-4117352-E Rev 00Parameter: Compression ModePath: Configuration Manager > Protocols > WCP > LinesDefaul

Site Manager Parameters117352-E Rev 00A-5 Parameter: History SizePath: Configuration Manager > Protocols > WCP > LinesDefault: 32KOptions: 32

Configuring Data Compression ServicesA-6117352-E Rev 00Parameter: Buffer SizePath: Configuration Manager > Protocols > WCP > LinesDefault: No

Site Manager Parameters117352-E Rev 00A-7 Parameter: Fallback Compression ModePath: Configuration Manager > Protocols > WCP > LinesDefault: S

Configuring Data Compression ServicesA-8117352-E Rev 00WCP Circuit Interface ParametersThe WCP Circuit Interfaces List window (Figure A-2) contains th

Site Manager Parameters117352-E Rev 00A-9 The parameter descriptions follow.Parameter: EnablePath: Configuration Manager > Protocols > WCP >

Configuring Data Compression ServicesA-10117352-E Rev 00Parameter: History SizePath: Configuration Manager > Protocols > WCP > InterfacesDefa

Site Manager Parameters117352-E Rev 00A-11 Hi/fn LZS Interface ParametersThe Hi/fn LZS Interface List window (Figure A-3) contains Hi/fn LZS interface

viii117352-E Rev 00show wcp hwcomp stats ... B-8show wcp hwcom

Configuring Data Compression ServicesA-12117352-E Rev 00To access the Hi/fn LZS Interface List window, complete the following tasks:The parameter desc

Site Manager Parameters117352-E Rev 00A-13 Parameter: Fallback Compression ModePath: Configuration Manager > Protocols > Hi/fn LZS > Interfac

Configuring Data Compression ServicesA-14117352-E Rev 00PPP Interface Parameters for CompressionThe PPP Interface Lists window contains two parameters

Site Manager Parameters117352-E Rev 00A-15 Parameter: Compression ProtocolPath: Configuration Manager > Protocols > PPP > InterfacesDefault:

117352-E Rev 00B-1 Appendix BMonitoring Hardware CompressionUsing the BCC show CommandThis appendix describes how to use the BCC show command to displ

Configuring Data Compression ServicesB-2117352-E Rev 00Online Help for show CommandsTo display a list of command options, enter one of theses commands

Monitoring Hardware Compression Using the BCC show Command117352-E Rev 00B-3 show hwcomp stateThe show hwcomp state command displays the status of har

Configuring Data Compression ServicesB-4117352-E Rev 00show hwcomp statsThe show hwcomp stats command displays statistics about hardware compression a

Monitoring Hardware Compression Using the BCC show Command117352-E Rev 00B-5 show hwcomp errorsThe show hwcomp errors command displays information abo

117352-E Rev 00ixFiguresFigure 2-1. CCP and WCP Initialization on a PPP Link ...2-9Figure A-1. WCP Line Int

Configuring Data Compression ServicesB-6117352-E Rev 00show wcp hwcomp allThe show wcp hwcomp all command displays information about active and unused

Monitoring Hardware Compression Using the BCC show Command117352-E Rev 00B-7 show wcp hwcomp stateThe show wcp hwcomp state command displays the statu

Configuring Data Compression ServicesB-8117352-E Rev 00show wcp hwcomp statsThe show wcp hwcomp stats command displays statistics about hardware compr

Monitoring Hardware Compression Using the BCC show Command117352-E Rev 00B-9 show hifn hwcomp allThe show hifn hwcomp all command displays information

Configuring Data Compression ServicesB-10117352-E Rev 00show hifn hwcomp stateThe show hifn hwcomp state command displays the status of hardware compr

Monitoring Hardware Compression Using the BCC show Command117352-E Rev 00B-11 show hifn hwcomp statsThe show hifn hwcomp stats command displays statis

Configuring Data Compression ServicesB-12117352-E Rev 00show hifn hwcomp errorsThe show hifn hwcomp errors command displays information about hardware

117352-E Rev 00C-1 Appendix CMonitoring Software CompressionUsing the BCC show CommandThis appendix describes how to use the BCC show command to displ

Configuring Data Compression ServicesC-2117352-E Rev 00Online Help for show CommandsTo display a list of command options, enter one of theses commands

Monitoring Software Compression Using the BCC show Command117352-E Rev 00C-3 show wcp circuitsThe show wcp circuits command displays information about