Matt, The only thing I can recommend would be to grab a laptop and the DSL Pipe and back to back the Pipe and Max at the DSL-Max end and do some testing. This helped out greatly since in my case I actually had bad copper facilities. Obviously it can be painful setting up the maintenance window to do this but it helps knowing exactly where to point the finger. I've been driven insane-o by this before. J Mav. >From: "Matthew Watkins" <matt at knowware.co.uk> >Date: Tue, 5 Sep 2000 17:12:24 +0100 >Subject: (ASCEND) DSL equipment problem? > >We have something of a problem with some Lucent SDSL equipment right now, >and some suggestions from this list might be helpful in getting the issue >solved. > >We're using a DSL-Max and a DSL-Pipeline over some British Telecom supplied >copper. It's a single-copper pair, running between two locations. We have >set the line speed statically to 272000 at both ends of the link. The next >step up seemed to produce an unstable connection. During testing, >"autobaud" >was either taking too long, or did not appear to work at all. > >The problem appears to be poor upstream performance from the pipeline. FTP >downloads hit high speeds, but uploads slow to a crawl. The same is true >for >sending mail etc., so it would appear to affect all the traffic on the >wire. > >The pipeline originally used RFC1918 addresses on the ethernet interface, >and was running Network address translation. I've not used the pipeline NAT >implementation for anything before, so I wasn't sure if this was the cause. > >I also couldn't gain telnet access to the pipeline when NAT was enabled. I >would have hoped that port 23 would be automatically mapped to the external >numbered interface address, but that does not appear to be the case. Adding >a static mapping so that port 23 points at the pipeline's ethernet >interface >address does not provide remote access either. > >I've recently swapped back to using a numbered configuration and have >regained remote access to the pipeline, although the main performance issue >remains. > >The code revision on the Max is: 8.0.3, the pipeline is running 7.10.8. >- - Matt _________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. Share information about yourself, create your own public profile at http://profiles.msn.com. ++ Ascend Users Mailing List ++ To unsubscribe: send unsubscribe to ascend-users-request at bungi.com To get FAQ'd: <http://www.nealis.net/ascend/faq>