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Configuring Data Compression Services

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117352-B Rev. 00

Compression Features for Specific Protocols

Bay Networks data compression services vary in some details according to the

WAN protocols that you configure. Read the following sections to learn about

how Bay Networks implementation of data compression applies to PPP, frame

relay, and X.25 services.

PPP Services

You can use software or hardware data compression on all PPP circuits, including

multiline (WCP only) and multilink, bandwidth-on-demand, dial-on-demand, and

dial backup lines. When you use compression on a bandwidth-on-demand,

dial-on-demand, or dial backup circuit, WCP automatically configures or deletes

compression as lines are added to or removed from the circuit.

PPP Multiline

Multiline is a feature that enables you to configure a single circuit that consists of

one or more WAN data paths. A data path is a logical point-to-point channel; it

can be a permanent or dial-up physical line, or it can be a virtual circuit

connection. Multiline provides both increased fault tolerance and greater

bandwidth between two sites.

For more information about Bay Networks multiline, see Configuring WAN Line

Services.

PPP Multilink

Multilink is a feature of PPP that provides capabilities beyond those of multiline

circuits. Multilink consists of a bundle of lines between two peers, consisting of

up to four links. Multilink can:

• Distribute traffic across the lines in the bundle in amounts roughly

proportional to the effective bandwidth of each link.

• Use lines that have different speeds, proportionally distributing traffic over

those lines.

• Balance traffic load and restore packet sequence.

• Use switched lines (such as ISDN-B channels) as well as leased lines.

• Monitor traffic volume.

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Avaya Configuring Data Compression Services Manual de usuario Pagina 38