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Chapter 10 - WAN Link Protocols

 

 

Sequenced Predictor Compression

Packet data can be compressed to provide better throughput across slower WAN links. Sequenced Predictor is a compression algorithm used in some Compatible Systems routers.

If checked this router will compress packet data being sent on this inter- face using the Sequenced Predictor algorithm.

ϖNote: A general rule of thumb for Compatible Systems routers would be to use Sequenced Predictor on uncompressed links at up to 128K rates, but to turn it off at higher speeds or if other means of compression (such as the V.42 compression built into modems) are in use. A few simple file copy transfer tests over your particular WAN setup will yield a more exact answer.

PPP Link Quality Configuration Dialog Box

PPP Link Quality Configuration Dialog Box

You can access the PPP Link Quality Configuration Dialog Box by selecting On Demand PPP Link or Dedicated PPP Link from the Link Type pull- down in the Link Configuration: WAN Dialog Box (under WAN/Link Configuration), and then clicking on the PPP Options button at the bottom of the dialog box, and then clicking on the Link Quality button at the bottom of the PPP Options Dialog Box.

This dialog box is used to set parameters which allow a router using PPP to monitor the quality of an on-demand WAN link. If poor link quality is detected, the line can be dropped and redialed to improve performance.

>Echo Packets On

This checkbox controls whether this router will use an echo protocol to monitor the quality of the line.

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Compatible Systems 5.4 manual Sequenced Predictor Compression, PPP Link Quality Configuration Dialog Box, Echo Packets On