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Re: TO COMPRESS OR NOT TO CMPRS (please reply)



Bob Monsour writes:
> The proposed compression mechanism is aimed at the ESP payload data field
> and (from my limited understanding) VJ header compression operates on the
> segment/packet headers only. So, I don't see them as alternatives as much
> as complements to each other. There would certainlyh have to be agreement
> (perhaps KMP negotiation) between the communicating parties to perform VJ
> header compression.

I guess I don't understand what you're getting at.  If VJ header
compression, used either by itself or in conjunction with another
compression algorithm, reduces the average size of the resulting
packets, isn't it a net benefit?  Keep in mind that VJ compression is
very low overhead, which might be very important for upgrading
underpowered systems.  It would also help offset the huge cost of
running IPSEC over dialup links, where TELNET packets go from a few
bytes (with VJ and no AH/ESP) to more like a hundred (with AH/ESP and
no VJ).
-- 
Karl Fox, servant of God, employee of Ascend Communications
3518 Riverside Drive, Suite 101, Columbus, Ohio 43221   +1 614 326 6841



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