Random Network Droping, advice needed

[Robin Laing]

Jeff Vian wrote:
> 
> 
> Jim Radford wrote:
> 
>> On Tuesday 16 Mar 2004 8:07 pm, jludwig wrote:
>>  

>>
> NOT (necessarily) TRUE.
> There is a segment of their cabling/equipment that is dedicated to you 
> and your location and a problem there would affect only you.  It may be 
> the carrier and not the ISP that is at fault here.
> 
> When I worked for one ISP we had one single location where our ISDN 
> connection was very unstable. We had 6 ISDN lines here and one was 
> unstable. Swapping hardware that worked proved the hardware was not at 
> fault.  The telco claimed they had no problems, but the instability 
> continued.  I was finally able to get them to put a sniffer on the line 
> and they found they had a problem with the cable routing/length/loading 
> that they then fixed and the problem was solved.
> 
>> Thanks though.

I worked for an ISP and the Telco wanted to drop the service because 
the ISP was supposed to be taking the Telco's equipment down.  The 
techs came in to confirm their line and all was well.  Connecte the 
Frame Relay modem and the line would toast.

On the second day I asked the tech to do a full loopback test of their 
equipment while I watched.  The tech refused at first.  I said that I 
would not pay if the test wasn't done.  When the tech did the 
loop-back, their line toasted.  I didn't have any of our equipment 
connected.  It turned out that the telco had a bad line.

Having worked as a telco tech, I have seen some very interesting 
problems with phone lines.  One line would change from clean to noisy 
during the day.  It turned out to be a bad connection that was heating 
and cooling as the day went on.

Don't trust the telco when they say it isn't their fault.
-- 
Robin Laing