Ascend Archive
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Re: (ASCEND) 6.0.9 an E-Mail, now TNT 2.1.3


Yup, It happened here also, It seem to be a rebirth of a PATH MTU
problem, users sending large emails/files upstream would see their
performance decline to the point of where it would stop. As I experienced
it in a engineering code I was kinda pissed, but to learn that they
actually released a full release with this bug amazes me. 


Jason Nealis
Director Internet Operations / Network Access
Erols Internet (An RCN Company)


On Tue, 28 Jul 1998, William R Charnock wrote:

> I had some of the same problems when I went to an engineering rev of the
> 2.1.4 code.  Download speeds were fine, but users sending larger files and
> e-mails would have their connections time out to the servers.  I
> downgraded back to 2.1.3 and everything looks fine now (except multiple
> HDLC cards will cause major havock on your system -- if you have mutliple
> HDLC cards, I would suggest downing all but one -- it worked for me).
> 
> --
> William Charnock
> System Administrator
> FastLane Internet Services
> (817)-429-5263
> 
> On Tue, 28 Jul 1998, Stephen Chen wrote:
> 
> > 
> > >
> > > Strangely we had just opened a trouble ticket with Ascend regarding the same
> > > problem.  Except it happened with our TNT running 2.1.3.  We had the exact
> > > same symptoms when using Windows 3.1 calling with winsock and dialer bundled
> > > with IE4.0.  We even tried telnetting into the mail server and retrieve mail
> > > with pop3 commands.  The strange thing is, we have no problem with another
> > > winsock that's bundled with Netscape, nor Window95/98's DUN.
> > 
> > 
> > >
> > > On Mon, 27 Jul 1998, Stefan M. Brandl wrote:
> > > > > > After upgrading 3 Max1800 from 5.0Ap51 to 6.0.9 (bi.m18) our users 
> > > > > > can't send larger E-Mails any more. 
> > > > > > 
> > > > > > It's possible to up-/download data via ftp, do WWW, receive megabytes 
> > > > > > of mail, but the users are unagble to send mails longer than some
> > > bytes. 
> > > > > > Mails with just 'test' or only some words in the body can be sent 
> > > > > > without problems. 
> > > > > > 
> > > > > > Any hints waht the problem can be? 
> > > > > 
> > > > > Hmm. This sounds very much like a packet loss problem. I don't know if 
> > > > > it's related to the new load (we only have 1 1800 running 5.0Ap27), but 
> > > > > you might want to try sending a hundred pings to every hop in between
> > the
> > >
> > > > > 1800 and the mail server. Any more than 1 or 2% packet loss will result 
> > > > > in those symptoms... 
> > > > > 
> > > > 
> > > > No, this shouldn't be the problem, because the Max1800 is the only hop 
> > > > between the user and the Mailserver and downgrading from 6.0.9 to 
> > > > 5.0Ap51 solved the problem. 
> > > > We have 3 Max1800 at 3 different locations and the probolem occurs on 
> > > > all 3 Maxen. 
> > > > With 6.0.9 everything works fine, exept sending E-Mails.
> > 
> > 
> > ++ Ascend Users Mailing List ++
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> > To get FAQ'd:	<http://www.nealis.net/ascend/faq>
> > 
> 
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> 

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