Connection reliability

C M Reinehr cmrNO
Mon May 17 11:43:15 PDT 2004


stayler wrote:

> Hi Guys,
> 
> I have a somewhat annoying ongoing problem here that I think the list
> may be able to assist me with.  My connection to the Internet is via a
> T-1.  I have 6 B chan for IP and 2 for some voice lines right now.  My
> connection seems to drop out on a fairly regular basis, at least once
> every 2 days, sometime more often for periods of a few sec to over
> 15min.  They seem to occur at random times and do not appear to be
> local in nature, ie the premises equipment, the router is a box called
> a "Vina eLink".   I will have at my disposal in the near futer a Bit
> Error rate tester, I now maintain a network of 16 DS1 microwave radios,
> it pays to have a day job.  In the mean time I'd like to have my
> firewall box provide some stats that I could use as leverage with my
> account rep.
> 
> The Box is a Slackware 8.0 with 2.2.20 and IP Chains on it.  I was
> thinking a regular, say every minute ping of 5 packets to a remote box,
> someone amenable to me doing this of course.  The resulting information
> being saved and collated to show outages with an accurate date/time
> stamp.
> 
> Ideas suggestions?
> 
> Shawn

Sounds suspeciously similar to problems I was having, but we need to learn 
a little more about your problem. When you say that your "connection" drops 
out, do you mean just your internet connection or do you lose phone 
service, as well. The telephone company terminates a T-1 line into a 
"network termination unit." On mine, and I would imagine on all of them, 
there is a single green LED which indicates that the T-1 is up and 
functioning. Is your T-1 up & functioning, or is the entire T-1 dropping?

In my case, the phone company was doing line maintenance a half a block 
away (installing a new cable) and when ever they were in working in the 
junction box, my T-1 would begin going up & down like a yoyo. There, 
apparently, was a loose/bad connection on my line, and whenever they would 
jiggle something I'd lose connectivity. This lasted for a year, until they 
finally finished their project -- and I switched to fixed wireless internet 
access.

cmr
-- 
Registered Linux User #241964
----
"Do not meddle in the affairs of Wizards, for they are subtle
and quick to anger." -- Samwise Gamgee




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