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Re: (ASCEND) 185's and 11's?


 I've been off looking at cable modems and doing all types of crazy 
items and haven't really been paying attention to my NAS's. Well, I took
a short trip to my local user newsgroups when I start to see titles like
DISCONNECTED AGAIN!, What's HAPPENING TO MY PPP CONNECTION. 

So that's why I dug through the accounting data and found these
astonishing numbers. Well, I got a few calls today and they are moving
forward in trying to find out where these Wierd Disconnect codes
are coming from. They first tried to hint that 185's where telco
related disconnects, (PRI's Flapping/ Line Down etc.) they got a prompt
bullshit from me. I track all up/down circuits and by no means am I
creating enough up/down traps to account for 118,000 unormal clearing
codez. 

Jason Nealis
Director Internet Operations / Network Access
Erols Internet (An RCN Company)


On Tue, 19 May 1998, FastWave - Ascend MAX wrote:

> Where were you guys last month when we posted this problem? No one from this
> list reponded, and we subsequently gave up. Here's why...
> 
> First of all, we do not generate the traffic numbers you are reporting,
> however, the proportions of 185's and 11's are the same as is the complaint
> from subscribers - random disconnects. We verified the random disconnects
> ourselves by using a Hayes 56K modem and dialing into our MAX, both which
> terminate at the same central office (this eliminated the suspicion of
> inter-office trunking problems at the phone company).
> 
> We were running a single MAX 4004 with K56flex modem cards and software
> version 5.0Ap42 when the problem stated.
> 
> Our first call to Ascend technical support resulted with the recommendation
> to upgrade to 5.0Ap46 which we did, and it did not fix the problem. We tried
> other MAX PRI line input ports as well thinking that the internal CSU/DSU's
> were the problem - they were not - the problem persisted. Then, we contacted
> our local telephone company who tested the PRI at our end and at the central
> office with a T-BERD (test equipment to detect the bit-error-rate on the PRI)
> continuously for four days with only 3 bad packets detected during that time.
> The PRI was deemed 'clean'.
> 
> For weeks, thereafter, Ascend's only advice after given this data was to
> exchange our 4004 chassis at a cost of $1,000+ to 'see' if that fixes the
> problem...ugh! We were not willing to gamble $1,000+ to experiment on
> Ascend's behalf and, consequently, gave up.
> 
> So, the problem continues and we believe it's a problem with the MAX. We were
> hoping others would have similar experiences to back up our claims, and it
> looks like we might be vindicated. Hopefully, with your apparent rapport with
> Ascend, we can both get the answers we're looking for. Thanks for your
> posting, and please let me know of any answers you may come across. I can be
> contacted as follows if you want more information about the tests we
> performed:
> 
>     Kim W. Premuda
>     FastWave Internet Services
>     San Diego, CA
>     kim@fastwave.net
>     619-487-1414
> 
> Jason Nealis wrote:
> 
> >  My users have been bitching lately about random disconnects so I did
> > some digging tonight through my Accounting logs and I found the following
> > which almost gave me a heart attack :
> >
> >  I pulled the folloing from a day's worth of accounting on one
> > of my accounting servers.
> >
> > Cause Code 185 (misc: remote end hung up)       45,865
> > Cause Code 1   (UNKNOWN)                        44,298
> > Cause Code 11  (modem: loss of carrier)         26,894
> > Cause Code 2   (reason unknown)                  1,016
> >
> > TOTAL Failures = 118073
> >                  ------
> >
> > Now either the Ascend is reporting the wrong Ascend-Disconnect
> > cause or I'm having some major problems here? I'm curious
> > has anyone else seen these MAJOR call-rate failures getting
> > logged? I'm especially interested in the 45K and 44K code 185's
> > and code 1's.
> >
> > ASCEND WHAT"S THE WORD?
> >
> > Jason Nealis
> > Director Internet Operations / Network Access
> > Erols Internet (An RCN Company)
> >
> > ++ Ascend Users Mailing List ++
> > To unsubscribe: send unsubscribe to ascend-users-request@bungi.com
> > To get FAQ'd:   <http://www.nealis.net/ascend/faq>
> 
> 
> 

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