Avaya Configuring Data Compression Services Bedienungsanleitung PDF herunterladen (Seite 56)

Configuring Data Compression Services

3-12

117352-B Rev. 00

Configuring Hardware Compression

There are two issues specific to hardware compression:

• Selecting a hardware compression engine

• Selecting a fallback compression mode

These two issues are explained in the next two sections.

Selecting Software or Hardware Compression Engines

When you configure a VC for compression, the default compression type varies

depending on whether it is a link or net module, and depending on the type of

router platform.

Table 3-4

shows the dependencies for the default compression type:

You can use software compression even though you are using a hardware

compression daughterboard or net module. Bay Networks recommends that you

use hardware compression for connections greater than 512 Kb/s. You would also

want to specify software compression for VCs in excess of the number of contexts

your hardware compression daughterboard or net module can support.

Configure a VC to use software compression by setting the Engine Type

parameter to Software.

Table 3-4. Default Compression Type Dependencies

Module Type Default Compression Type

Link module that does not support

hardware compression

Software

Link module that supports hardware

compression*

* Refer to “Hardware Compression” on page 2-5.

Hardware

Net module - except for an ASN Software

Net module - ASN with a hardware

compression net module

Hardware

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Avaya Configuring Data Compression Services Bedienungsanleitung Seite 56