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Re: (ASCEND) 56K Modem Throughput Degradation



Here is a really good message from one of my users that he can
duplicate at will (the results, not the message).  If you'd like to verify
this by calling into my 56K modems I can give you the phone number.


Date: Sat, 31 May 1997 10:50:30 -0400 (EDT)
To: rob@fuse.net
Subject: New Miserable (56k) Experience

Rob,

Some 56k Data for you:

I did a download from fuse using netscape (jpegview 566k) after connecting 
at 36,000 to the 0709 number.  The download started at 4.3k and dropped a 
little to between 4.0 and 3.9k and stayed right around there, then at 
around 25k, it paused for a pretty long time (10-20 seconds) and then 
began again at 2.9 to 3.0k (stayed that way to the end)

Then I called the 5335 number, got a 31200 connect and started the same 
download.  it started at 4.3 and dropped to 3.4 almost immediately and 
then stayed pretty much right there the whole time.

Then I reconnected to the 0709 number and downloaded paint shop pro (1907k) 
It started at 4.7 and quickly dropped to 3.6 then at 6% there was a 10 - 20 
second puase and it picked back up at 2.5 and then worked back up to 3.0. 
Then at 15% I got dropped.

Then I reconnected to 5335 and downloaded it getting right around 3.0 the 
whole time.  Then I went to bed with eudora pro running the whole time and 
the connection stayed up for 11 hours.  (I can't seem to keep a 56k connection
up for 20 minutes)


Modem Information: (I didn't know which ATI you needed, so I did them all)

ati
56000

OK
ati1
000

OK
ati2
OK

OK
ati3
V0.114-03-K56_ACF_DS2

SupraExpress 56e - Mac

Built: March 18 1997 17:01:18

OK
ati4
a007040CA879CE02F

bC60000000

r1005111151112004
r100511115111200

OK
ati5
(c) 1993-1997 Diamond Multimedia Systems, Inc.

OK
ati6
022 US  011

OK
ati7
RCV56DPF Rev 47BA

OK
ati8
ERROR
ati9
($SUP2100\\MODEM\SUP1251\SupraExpress 56e - Mac37)
OK
ati10
101,115,121,140,146,150,151,153,156,157,163,186,190,201,202,205
SupraExpress 56e - Mac

101=Class 1 FAX           115=V.17 14.4Kbps FAX     121=V.23
140=V.32bis 14.4Kbps data 146=AT\S config display   150=Enhanced &F options
151=Enhanced rate control 153=V.34 28.8Kbps data    156=Distinctive Ring
157=RINGING response code 163=ADPCM Voice support   186=V.80 Sync Access Mode
190=FLASH memory          201=V.34 33.6Kbps data    202=V.25ter Annex A
205=K56Flex


On Mon, 2 Jun 1997, Kevin Smith wrote:

> At 02:29 AM 5/31/97 -0400, Jason Nealis wrote:
> >
> >
> >I saw the same. Then I spoke with rockwell, And they informed me
> >that there was an actual new 56K card that was out that 
> >addressed this, I got my hands on a newer K56 card and the disconnects
> >went away. kevin can probably expand more on this.
> >
> >kevin?
> 
> After having this issue brought to our attention, we have been working
> in the LAB on understanding the problems. We have NOT seen any such
> degradation, or disconnect issues since the official release of the
> K56flex modem codes. But, we will be investigating this further and 
> provide updates as we discover more on the issues.
> 
> 
> 
> Kevin Smith                              Updated Service and Support
> Ascend Communications                    Resources are now at:
>                                          http://www.ascend.com/service
> ++ Ascend Users Mailing List ++
> To unsubscribe:	send unsubscribe to ascend-users-request@bungi.com
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> or		<ftp://ftp.shore.net/members/dreaming/ascend-faq.txt>
> 

-- 
Robert A. Pickering Jr.                Internet Services Manager
Cincinnati Bell Telephone              rob@fuse.net

           A Rough Whimper of Insanity (Information Superhighway)

PGP key ID: 75CAFF7D 1995/05/09
PGP Fingerprint: B1 63 0C 09 D8 2E 5D 69  BB 61 A2 92 22 37 63 C3


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