Avaya Configuring Data Compression Services Manuel d'utilisateur télécharger pdf (Page 39)

Editing Data Compression Parameters

4-3

Hybrid Access

If you conﬁgure Frame Relay in Group access mode and then add a PVC in

Hybrid mode, the conﬁguration ﬁle you create for the hybrid access PVC takes

precedence over the Group conﬁguration. Data compression will work only if you

speciﬁcally conﬁgure it for the Hybrid PVC.

Direct Access

When you conﬁgure Frame Relay in direct access mode, you can conﬁgure

circuits individually to run compression or not. To conﬁgure parameters for

individual PVCs, follow the instructions in the “Editing WCP Circuit Interface

Parameters” section, later in this chapter.

Conﬁguring Data Compression for X.25

You can use software-based data compression with X.25.

X.25 allows many circuits per line. You may wish to use data compression on

some circuits, but not on others. To conﬁgure compression for individual circuits,

follow the instructions in the “Editing WCP Circuit Interface Parameters” section,

later in this chapter.

When you use compression with X.25 PDN or DDN services, you must enable

compression on both sides of the X.25 link for the circuit, line, and X.25 service

record parameters, or your data will be garbled.

Conﬁguring Data Compression for PPP

You can use software- or hardware-based data compression with PPP.

Since PPP allows only one circuit per line, you can conﬁgure most PPP WCP

parameters by selecting either Protocols➔WCP➔Lines or

Protocols➔WCP➔Interfaces. The only parameter that does not appear in both

places is Buffer Size, which is a line parameter only.

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Avaya Configuring Data Compression Services Manuel d'utilisateur Page 39