Messages in this thread | | | Date | Sat, 5 Dec 1998 20:58:00 +0000 | From | Jamie Lokier <> | Subject | Re: "TCPv4 bad checksum" errors: a little more debugging |
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On Sat, Dec 05, 1998 at 08:16:29PM +0000, Shaw Carruthers wrote: > It is believed that there is a problem with the Ascends that Demon use > which leads to checksum errors. The Ascends have a fixed buffer of about > 16k per connected user. If you advertise a large receive window, the > buffer can overrun and packets get dropped which screws the VJ > compression. I use a window of 7k which reduces the problem.
The VJ compression bugs are quite well known. It's the first thing people suspect when there are checksum errors.
> There is also another problem as I get checksum errors with novj, but far > less often.
This problem was the focus of my mail. Looks a routing problem, as the erroneous packets appear to be ones I shouldn't be receiving.
-- Jamie
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