Ah, but she didn't say she believed it. Just said where the data was... Do we really need to verify what it shows? At best, it shows that they have spotty reporting. At worst, it shows rather severe reliability problems. Take your pick... James H. Smith II NNCDS NNCSE First Call Response Center Professional Services - Network Engineer The Presidio Corporation
-----Original Message----- From: Internet Guy [mailto:internetguy205@hotmail.com] Sent: Monday, July 08, 2002 12:22 PM To: nanog@merit.edu Subject: Re: WorldComm Fiber Cut????
HHHMMM... Very interesting. Someone who believes what a carrier really tells them.
If you go to the MFN homepage & click on the graphs listed below, then you might see that possibly the data being displayed is both inaccurate, as well as misleading.
Go to SJC OC3 Los Angeles, to OC192 SJC3 to SJC4, to OC12 MaeW ATM, OC48 # 2 for IAD to NYR, IAD # 2 to PAIX VA OC48, DCA2 to DFW2 OC48, PAIX OC12 to Core1.sjc, NPA - DS3 to San Jose, LGA1 OC192#2 to IAD, LGA1 OC48 to Chicago, NYC Backbone OC192 to LGA2, NYC Backbone OC48 # 2 to core3.lga1, ETC...
Each one of these graphs shows abnormalities in the flow of internet data, such as "pits", spikes, square wave function graphs, clipping on some waveforms, etc.
This is not limited to MFN. I have observed this on other similiar types of Sundry network data collection systems.
It is not easy to see HOW BAD the problem is with these Sundry data collection systems, UNTIL you expand the MRTG graph. Once this is done, then you can really see how bad the integrity of the collected data really is. A small MRTG graph really masks the problems associated with the data which is being displayed. With a larger graph, you definately see the problems associated with todays Sundry systems.
As there is no way to really verify the QUALITY or INTEGRITY of the data being displayed, then I submit as fact, that what is being shown here is really in a grey area, at best.
So who really knows how correct, the data which is being displayed on the MFN home page is really is ?
Cause with the clipping, spiking, pits, & squarewave graphs, small graphing scale being shown, definately, I have my doubts ...
One would also wonder, that if this data collection system is used by MFN to generate bills for customers of MFN who are charged by the Megabyte, what these customers bills look like & HOW accurate these bills really are...
Regards,
Mike Martin.
From: "Pawlukiewicz Jane" <pawlukiewicz_jane@bah.com> To: "nanog@merit.edu" <nanog@merit.edu> Subject: Re: WorldComm Fiber Cut???? Date: Mon, 08 Jul 2002 10:52:18 -0400
MFNs status page is:
http://www.mfn.com/network/ip_networkstatus.shtm#sjc
Jane
Sean Donelan wrote:
On Sun, 7 Jul 2002, Gerardo A. Gregory wrote:
Can someone from WorldComm please verify a fiber cut
that happened today at
around 11:30 am (Central). I have bveen informed that a fiber cut in Illinois (or Indiana) has been in effect (until just a few minutes) for all of the afternoon and most of the evening.
Worldcom is reporting a problems near Chicago. Earthlink is reporting problems affecting its customers in Indiana, Illinois, Iowa, Michigan, Wisconsin and Ohio.
http://help.mindspring.com/netstatus/ http://www.noc.uu.net/
Cable & Wireless is showing delays out of Cleveland, Ohio
AT&T and Sprint aren't reporting any problems.
http://ipnetwork.bgtmo.ip.att.net/index.html http://www.sprint.net/
MFN's and PSI's network status pages have stopped working for me, so I don't know if they are having problems.
http://www.above.net/html/techlog.txt http://www.psi.net/cgi-bin/netstatus.pl5
_________________________________________________________________ Chat with friends online, try MSN Messenger: http://messenger.msn.com