*BSD News Article 97527


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From: shawn carey <smc@servtech.com>
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Re: Outbound ftp traffic is SLOW (< .5kb/sec.) HELP!!
Date: Tue, 10 Jun 1997 19:08:24 -0400
Organization: ServiceTech, Inc.
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To: ils@conn.com
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ils@conn.com wrote:
> 
> I have reviewed several news group responses to a problem that I am
> having regarding EXTREMELY SLOW transfer rates (outbound only) from ftp
> and web page request outside my server. The outbound rates start at about
> 1.3kb/sec. and steadly decrease down to .3kb/sec. I have a 28.8 modem and
> am running Freebsd 2.1.7 release.
> 
> Something appears to be slowing up my system that is not presenting
> itself  when I run "top". No errors in "netstat -i".
> 
> Can anyone help?????????
> 

The very same thing was happening to my system, and lowering the MTU
from 1500 to 1064 solved the problem for me.  If you are running ijppp
you may need to get at the ppp source and change DEF_MRU to your desired
MTU in hdlc.h.  If you are running pppd I assume you can use the mru
option to change it.

-Shawn Carey