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RE: IPCOMP and IPSEC
> >comparing different compression algorithms in a stateful environment;
> ^^^^^^^^ how comes?
Looking at the queue state of a typical Internet router, there is next to
no correlation of any packets within the queue. Therefore, maintaining a
state (or history) is not of significant value because the patterns are
random. For instance, I rarely have two packets belonging to the same
flow (or session) in my queue at the same time.
Now, if one were to FTP some files, one at a time, and have no other
concurrent activity, then the queue serving the local segment would
contain only packets from the single session. These packets would be
highly correlated and therefore should compress relatively well (assuming
that they are not already compressed).
>From a packet compression perspective, the Internet is a stateless
environment. Now if one were to build VPN's with IPSEC, then one might
achieve better compression ratios.
-eric