[cobalt-users] Re: intermittent slow ftp

["Kline, Douglas" <klined@xxxxxxxx>]

>At 04:35 PM 10/6/2003 -0400, you wrote:
>>I have a Raq4 that is having intermittent deathly slow ftp, especially

>>on file listing.
>>
>>It may be that your colo center has a lousy connection.
>>We saw this same behavior when our ISP was having bandwidth trouble.
>>
>>Get a copy of WinMTR and try your IP with it. See if you get dropped
packets. http://www.icnet.ro/~stanimir/winmtr/
>>

Things seem to have gotten faster today, with no change by me. Got
WinMTR and see about 8% lost packets (over 600 packets) at the host just
before the offending Raq4. All other hosts along the way have almost no
lost packets. Is this lost packet percentage enough to cause such a
noticeable degradation? Also, although I haven't tested it explicitly, I
haven't noticed any slow http connections when the ftp server is so
slow. I'll have to run WinMTR next time it slows down again.

>>Guess #3:  Problems with speed/duplex autonegation?  I've seen some
very bizarre troubles due to that.  What switch are you using?

Would this be the switch at our colocation company?

>>Guess #4:  Any sort of firewall monkey business?  Funny things happen
when overzealous IWFs^H^H^H^Hfirewall admins block things that they
should not.

Could be, but I'll have to hit the ipchains docs. Any easy way to know
if it's a firewall issue?

Again, thanks for the suggestions.