Re: (PM) Slow throughput

Carl Schrader (carl@csiway.com)
Sat, 13 Jun 1998 09:56:45 -0700

I just took a look at sh netstat and got:

Name Ipkts Ierrs Opkts Oerrs Collis Resets Queue
ether0 85813996 89 93199229 45 587169 128 0

The collisions seem high...is it and if so..what should I look for as the problem?

Jason Hatch wrote:

> That periodic hang may be a result of retrains. You can telnet into the
> PM3 and show the modem you're on to see how many errors or retrains its
> had.
>
> -Jason
>
> On Fri, 12 Jun 1998, Joe Hartley wrote:
>
> > Robert Hough (rch@iserve.net) wrote:
> > > I was just wondering if anyone has noticed any slow, or sluggish throughput
> > > with the pm3 when connected via modem? I've had a few people complain that
> > > it 'feels' slower than when they connect to our pm2 & mp16's... Connect
> > > rates are high, and seem very stable.
> >
> > I had a chance to experience this firsthand today when I was at a client's
> > site. I had dialed in to check email, and my first thought was "cool,
> > 45K! This is great!" It was so damn slow that it felt like 2400bps!
> >
> > Not all the time - it seemed very "bursty". I went to our website and
> > watched what happened. I'd be pulling down images at 5.5Kb according to
> > Netscape, then boom - nothing for 5, 10, 15 seconds, then the data would
> > start up again.
> >
> > This was with a USR V.90 Sportster and ComOS 3.8b15.
> >
> > This has also been reported with a V.90 Global Village modem and a
> > Zook 56K v.90.
> >
> > Collisions on the network, which had been mentioned, seem a little high...
> > pm3> sho netstat
> > Name Ipkts Ierrs Opkts Oerrs Collis Resets Queue
> > ether0 1136566 9 982822 0 22359 0 0
> >
> > ...but the 2 PM2's on the same network don't bog down at all, even the one
> > with the 2 5-BRI cards.
> >
> > I'll probably call this in as a bug on Monday, but I'd be curious to hear
> > if anyone else has seen this, and especially if they've solved it!
> > Unfortunately, dropping back to a non-V.90 ComOS isn't really an option;
> > the people who are beta testing the PM3 would howl if the V.90 support was
> > yanked, though we may have to do that before it all goes live to the whole
> > customer base unless there's a new beta before then that's less problematic.
> > (No, that's not a slam, or even a poke - I know it's beta code, and am willing
> > to wait. I would, however, be in the crowd that would appreciate the
> > occasional "here's what we're working on now" update.)
> >
> >
> > ========================================================================
> > Joe Hartley - jh@brainiac.com - brainiac services, inc
> > PO Box 5069 : Greene, RI : 02827 - vox 401.539.9050 : fax 401.539.2070
> > Without deviation from the norm, "progress" is not possible. - FZappa
> > -
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> >
>
> -
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--
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 "The trouble with doing something right the first time
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Carl Schrader C.S.I-way Internet Services 1-888-CSIWAY1 carl@csiway.com http://www.csiway.com

- To unsubscribe, email 'majordomo@livingston.com' with 'unsubscribe portmaster-users' in the body of the message. Searchable list archive: <URL:http://www.livingston.com/Tech/archive/>