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SubjectRe: Network/PPP bug?
Alan Cox <alan@lxorguk.ukuu.org.uk> wrote:
> Yes. Your host knows the MTU of its ppp link is low and sends a lower
> TCP MSS, thus the problem is hidden.

Hmm... one thing I've noted, which is rather odd, involving three linux boxes:

2.1.90 <-ppp over modem-> 2.0.32 <-ethernet-> 2.0.29

a direct tcp link from the newest kernel to the oldest gives horrible
interactive performance -- it's as if something is waiting on a timer
before being able to make a round trip. Using two tcp links to span
the distance works around the problem.

Is this a known bug with one or more of the implementations? [yeah,
I need to get around to upgrading those boxes, but right now I don't
understand what's going on, and there are a lot of variables.]

--
Raul

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