Date: Fri, 31 Aug 2001 00:00:28 -0400 (EDT) From: Mike Silbersack <silby@silby.com> To: Hans Christensen <hansc@techserve.datamatrix.com> Cc: <freebsd-hackers@freebsd.org> Subject: Re: SLOW ftp transfers one way Message-ID: <Pine.BSF.4.30.0108302353260.75391-100000@niwun.pair.com> In-Reply-To: <006c01c131cf$1ea67020$523e5042@datamatrix.com>
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On Thu, 30 Aug 2001, Hans Christensen wrote: > Here is where it gets weird. If I ftp into one of my boxes at Site A > across the WAN (in this case from a colocation facility) and put a large > file onto my server in Site A, I get speeds of about 10KB/s. This may > fluctuate from 4KB/s to 16KB/s, but it far below what one would normally see > across a T1 line. Interestingly enough, sending ftp traffic out of Site A > seems to move five to ten time faster - not perfect, but workable. Below are Grab some traffic dumps with tcpdump of the transfers in question. (Not the 1GB ones, smaller ones. <g>) Preferrably, run tcpdump at the same time on *both* sides of the connection. This way, you'll be able to see where packets are getting dropped and/or what weird tcp interactions are occuring. Mike "Silby" Silbersack To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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