From owner-freebsd-hackers Wed Sep 3 18:03:44 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.7/8.8.7) id SAA21651 for hackers-outgoing; Wed, 3 Sep 1997 18:03:44 -0700 (PDT) Received: from nico.telstra.net (nico.telstra.net [139.130.204.16]) by hub.freebsd.org (8.8.7/8.8.7) with SMTP id SAA21644 for ; Wed, 3 Sep 1997 18:03:36 -0700 (PDT) Received: from freebie.lemis.com (gregl1.lnk.telstra.net [139.130.136.133]) by nico.telstra.net (8.6.10/8.6.10) with ESMTP id LAA28391; Thu, 4 Sep 1997 11:00:39 +1000 Received: (grog@localhost) by freebie.lemis.com (8.8.7/8.6.12) id KAA13249; Thu, 4 Sep 1997 10:30:28 +0930 (CST) Message-ID: <19970904103027.15393@lemis.com> Date: Thu, 4 Sep 1997 10:30:27 +0930 From: Greg Lehey To: Brian Somers Cc: Nate Williams , Mike Smith , Jaye Mathisen , hackers@FreeBSD.ORG Subject: Re: Anyway to get connect speed with usermode ppp/tun0 device? References: <19970904101743.28980@lemis.com> <199709040055.BAA17559@awfulhak.demon.co.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 0.81e In-Reply-To: <199709040055.BAA17559@awfulhak.demon.co.uk>; from Brian Somers on Thu, Sep 04, 1997 at 01:55:59AM +0100 Organisation: LEMIS, PO Box 460, Echunga SA 5153, Australia Phone: +61-8-8388-8250 Fax: +61-8-8388-8250 Mobile: +61-41-739-7062 WWW-Home-Page: http://www.lemis.com/~grog Fight-Spam-Now: http://www.cauce.org Sender: owner-freebsd-hackers@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk On Thu, Sep 04, 1997 at 01:55:59AM +0100, Brian Somers wrote: >> On Thu, Sep 04, 1997 at 01:46:11AM +0100, Brian Somers wrote: >>> [.....] >>>> How well do modems handle fallback? If you're running PPP with LQM, >>>> that should give you a pretty reliable indication as well. I'm >>>> running a no-name Rockwell V.34 modem here, and my line quality seems >>>> to be pretty good, but on one occasion I got a whole lot of: >>>> >>>> Aug 3 17:31:05 freebie ppp[196]: Phase: HDLC errors -> FCS: 89 ADDR: 0 COMD: 0 PROTO: 0 >>>> Aug 3 17:32:05 freebie ppp[196]: Phase: HDLC errors -> FCS: 17 ADDR: 0 COMD: 0 PROTO: 0 >>>> Aug 3 17:33:05 freebie ppp[196]: Phase: HDLC errors -> FCS: 35 ADDR: 0 COMD: 0 PROTO: 0 >>>> Aug 3 17:34:05 freebie ppp[196]: Phase: HDLC errors -> FCS: 59 ADDR: 0 COMD: 0 PROTO: 0 >>>> Aug 3 17:35:05 freebie ppp[196]: Phase: HDLC errors -> FCS: 8 ADDR: 0 COMD: 0 PROTO: 0 >>>> Aug 3 17:36:05 freebie ppp[196]: Phase: HDLC errors -> FCS: 14 ADDR: 0 COMD: 0 PROTO: 0 >>>> Aug 3 17:37:05 freebie ppp[196]: Phase: HDLC errors -> FCS: 38 ADDR: 0 COMD: 0 PROTO: 0 >>>> Aug 3 17:38:05 freebie ppp[196]: Phase: HDLC errors -> FCS: 66 ADDR: 0 COMD: 0 PROTO: 0 >>>> >>>> Note that these are errors per minute. They went away when I >>>> redialled. >>> >>> Sounds like the peer stopped responding :-( >> >> No, I had a connection all the time. I was just getting a lot of FCS >> errors. > > Did you have LQM on at the time ? Yes. Isn't that what's generating the messages? > Or did you try pinging your gateway address ? Well, no, since the line was working there didn't seem to be much point. > What was the throughput like ? Slightly degraded, but acceptable. The most annoying thing was the message every minute. > You may have got a crossed line or something. As I said, it worked pretty reasonably. I suspect a noisy line. Maybe Mike's right, and it was flow control, but that tends to cause more problems when I'm transferring a lot of data. Greg