Re: (PM) Modem slow-down with 3.8.2c2

Mike Bacher (news@darkhorse.triad.net)
Tue, 11 May 1999 15:14:14 -0500

"Jason A. Cox" <tech@alpha.familynet.net> wrote:
>I had one user quit so far because of this issue. I hope that isn't a sign
>of things to come. Most users tolerate slow connections for a while
>(suspecting it is their phone line noise, etc. due to the Oklahoma weather),
>but they are going to figure it out sooner or later!
>
>After my first complaint, I scanned the details log (radius) and noticed
>that several other users that where connecting 49K before are now ending up
>(stopping) at 31K. Some others are never getting their 33.6K++ connection
>that they once had.
>
>The flip side is that many of the "can't connect" or "disconnecting all the
>time" users are now happy. I just hope the fix doesn't run off all the
>rest. =)
>
>How can we diagnose this problem and report it to Lucent?
>
>Jason A. Cox
>Family Net, Inc. - jason@familynet.net
>(918) 663-7134 - FAX (918) 663-7136
>7935 East 57th Street - Tulsa, OK 74145
>

We've seen just the opposite - overall higher connection rates vs 3.8.2
(and we're in your neck of the woods). We participated in the PWM betas
(of which the result was 3.8.2c2). We worked very closely with Lucent for
months on all sorts of modem issues - USR 56K v.90 null speedshifts,
Rockwell HCF madness, Diamond Supra Express KFlex disconnects, Global
Village no-connect, Motorola SM56 issues, etc.. my guess is what you (and
the others) might be seeing is that with 3.8.2, while they may connect at
v.90, they are reneg/retraining down over time, and before they might have
been disconnected, whereas now they correctly retrain down to v.34 speeds
rather than disconnecting. Do you log both initial connect speed and
connect speed on the accounting records as well? This can provide some
insight. If you are having customers with specific modem issues, the best
way to track it down is to identify the make/model modem, firmware
revision, and ensure the problem *is reproducable*, then E-mail or call
RABU support. They can log in to one of your boxes and run traces to get
the data they need if the customer is willing to dial in for diagnosis.
Also, make sure the customer is running the latest firmware on their modem,
yada yada.

---------------------------------------------
Mike Bacher / mikeb@webzone.net
Systems Administrator, The WebZone
Now serving both Tulsa and Oklahoma City!
Phone: (918) 585-8800 FAX: (918) 587-1526
Web: http://www.webzone.net
Supporting the v.90 56k standard
---------------------------------------------
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