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2651 compression overhead

At what wide area linespeed would the overhead of software compression in a 2651 exceed the benefits. I am looking to improve the throughput of our ISDN dial backup solution which ranges from 128k to 512k, which in most cases is 50%of the sites leased line speed.

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Re: 2651 compression overhead

We used to disable compression on links over 128kb. With the 2651 you could perhaps compress up to 256k. Beyond that, the profits become marginal and your CPU-load is raising above average.

On low-speed lines (=<128k) I have much better experiences with TCP header compression, but this implies that you are using TCP which is likely, but not necessarily the case.

At speeds over 512k, I would advise anyone to forget about compression.

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