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Chapter 3
Customizing Data Compression
Allocating Compression Memory for WCP .....................................................................3-2
Maximizing the Compression Ratio ..........................................................................3-2
Maximizing Throughput ............................................................................................3-4
8 KB History Size ...............................................................................................3-4
32 KB History Size .............................................................................................3-4
History Size with Hardware Compression .........................................................3-5
Modifying the History Size .................................................................................3-6
Preventing Data Loss for PPP and Frame Relay .....................................................3-8
Customizing Hardware Compression .............................................................................3-9
Selecting Software or Hardware Compression ......................................................3-10
Selecting a Fallback Compression Mode ...............................................................3-12
Changing the Compression Control Protocol ...............................................................3-14
Disabling and Reenabling Compression .......................................................................3-16
Disabling and Reenabling WCP .............................................................................3-16
Disabling and Reenabling Hi/fn LZS ......................................................................3-17
Deleting Data Compression from a Router ...................................................................3-18
Appendix A
Site Manager Parameters
WCP Line Interface Parameters .................................................................................... A-2
WCP Circuit Interface Parameters ................................................................................. A-8
Hi/fn LZS Interface Parameters ................................................................................... A-11
PPP Interface Parameters for Compression ................................................................ A-14
Appendix B
Monitoring Hardware Compression
Using the BCC show Command
Online Help for show Commands ............................................................................ B-2
show hwcomp all ..................................................................................................... B-2
show hwcomp state ................................................................................................. B-3
show hwcomp stats ................................................................................................. B-4
show hwcomp errors ............................................................................................... B-5
show hwcomp chip .................................................................................................. B-5
show wcp hwcomp all ............................................................................................. B-6
show wcp hwcomp state ......................................................................................... B-7
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