Kitz Forum

Broadband Related => Broadband Technology => Topic started by: EVIL-SCOTSMAN on October 28, 2006, 09:10:16 AM

Title: ATM Errors
Post by: EVIL-SCOTSMAN on October 28, 2006, 09:10:16 AM
Can anyone shed any light on what these errors mean and where they originate from ?

ATM Cell Header Errors:
ATM Loss of Cell Delineation:

I am getting a couple of both over a 24hr period, but my inet seems to be rock stable, The bt business hub is one hell of a router, I mean it has everything in it and I came across this type of error which non of my other routers have listed in their error pages and I was wondering if anyone can shed any light on them 2 particular errors.

cheers
Title: Re: ATM Errors
Post by: roseway on October 28, 2006, 11:26:12 AM
If you Google for those terms you'll get a lot of information, most of which is over my head. But I think the first item is what other routers call HEC (Header error control) errors.

Eric
Title: Re: ATM Errors
Post by: EVIL-SCOTSMAN on October 28, 2006, 09:12:58 PM
I did google, and as you say, alot of the info is complicated and above one's head, thats why I posted asking if anyone knew what they meant, as the info I got off of google didnt really tell me anything.
Title: Re: ATM Errors
Post by: kitz on October 30, 2006, 10:15:49 AM
afaik.. theres no quick and easy explanation of CRC/HEC errors in one place but the following links are the ones that  normally direct people too when they ask.

The CRC-based framing link probably has the best info to give basic understanding.

HEC http://en.wikipedia.org/wiki/Header_Error_Correction
FEC http://en.wikipedia.org/wiki/Forward_error_correction
CRC http://en.wikipedia.org/wiki/CRC-based_framing


----------------------
Edited to add

Information about about this is now available direct on the site
Line stats - Explanation of Errors (http://www.kitz.co.uk/adsl/linestats_errors.htm) and
How Error Correction works (http://www.kitz.co.uk/adsl/error_correction.htm)