Avaya Configuring Data Compression Services Bedienungsanleitung PDF herunterladen (Seite 36)

Configuring Data Compression Services

2-8

117352-B Rev. 00

Figure 2-1. CCP and WCP Initialization on a PPP Link

CCP Negotiations

CCP allows the two ends of a PPP connection to negotiate whether to use data

compression, and if so, which algorithm to use. Both WCP and Stac LZS use CCP

to negotiate compression.

Note:

If one side of a link requests an algorithm that the other side does not

support, traffic over the link continues, but in uncompressed form.

Router A Router B

1. PPP interface on network; LCP negotiations complete; begin CCP and other

NCP negotiations:

Send initialization-request

Send initialization-ACi

Send initialization-ACK

2. CCP negotiations complete; begin WCP negotiations, including compression mode,

history size, and buffer size:

SendiInitialization-request

Send initialization-Request

Send initialization-ACK

3. WCP negotiations complete; begin transmitting data:

Send data

DC0001A

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Avaya Configuring Data Compression Services Bedienungsanleitung Seite 36