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117352-B Rev. 00
Bay Networks WAN Compression Protocol (WCP) ..................................................2-4
PPP Stac LZS Compression Protocol ......................................................................2-5
Data Compression Performance ....................................................................................2-5
Hardware Compression ..................................................................................................2-5
Hardware Compression for the BN ..........................................................................2-6
Hardware Compression for the ASN ........................................................................2-6
Hardware Compression Contexts ............................................................................2-6
How Data Compression Works .......................................................................................2-7
CCP Negotiations .....................................................................................................2-8
WCP Negotiations ....................................................................................................2-9
Data Transmission ....................................................................................................2-9
Compression Features for Specific Protocols ...............................................................2-10
PPP Services .........................................................................................................2-10
PPP Multiline ...................................................................................................2-10
PPP Multilink ...................................................................................................2-10
PPP Multilink and WCP ...................................................................................2-11
PPP Bandwidth-on-Demand ............................................................................2-11
PPP Dial-on-Demand ......................................................................................2-12
PPP Dial Backup .............................................................................................2-12
Frame Relay Services ............................................................................................2-12
Frame Relay Hybrid Access ............................................................................2-13
Frame Relay Dial-on-Demand .........................................................................2-13
Frame Relay Dial Backup ................................................................................2-13
Frame Relay Multiline ......................................................................................2-14
X.25 Services .........................................................................................................2-14
X.25 PDN and DDN Services ..........................................................................2-14
Adjusting X.25 Max Window Size ....................................................................2-15
Chapter 3
Customizing Data Compression
Accessing Configuration Windows .................................................................................3-2
WCP Line Interface Parameters ...............................................................................3-2
WCP Circuit Interface Parameters ...........................................................................3-4
Stac LZS Enable Parameter .....................................................................................3-6
Allocating Compression Memory for WCP .....................................................................3-7
Maximizing Compression Ratio ................................................................................3-7
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