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Re: CVS slow and TCP Compression

From: Gerhard Sittig
Subject: Re: CVS slow and TCP Compression
Date: Mon, 2 Jul 2001 20:46:34 +0200

On Mon, Jul 02, 2001 at 12:54 +0200, Scott Willy wrote:
> Some more info...
> 1) Not sure its a duplex problem as FTP does not have this speed problem.
>    I just downloaded 8MB in 37 seconds. One would think a duplex problem
>    would affect all protocols.
>    [8647568 bytes sent in 37.5 secs (2.3e+02 Kbytes/sec)]

That's *download* which is not the same as transferring data in
_both_ directions.  In FTP you only have small(!) handshake
packets going both ways, while the main stuff flows in one
direction only.

> 4) By tons of collisions, I mean that the little blinky lite on the hub goes
>    from not blinking to full-on when I start a cvs checkout.

If this is not a sign for a duplex mismatch, what else is?

Honestly:  Check your network setup!  If autonegotiation takes
place, double check the results.  If autonegotiation won't work,
hardcode things.  But do it consistently and do it everywhere!

How about starting a log analyzer to see how traffic flows and
what the timing looks like?

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