[56894] in North American Network Operators' Group
RE: Problems with AT&T
daemon@ATHENA.MIT.EDU (Brennan_Murphy@NAI.com)
Fri Mar 21 11:57:49 2003
Date: Fri, 21 Mar 2003 10:59:11 -0600
From: <Brennan_Murphy@NAI.com>
To: <mtruman@att.com>, <mohammed_al_sukkar@maktoob.com>
Cc: <nanog@merit.edu>
Errors-To: owner-nanog-outgoing@merit.edu
Personally, I would have preferred that the caution showed itself
prior to rolling out something that doesnt support ICMP sufficiently.
Caution at that stage would have been most appropriate and
most welcome. :-)=20
Can you elaborate on which vendor and what specific issue=20
you are dealing with? That might alleviate some head scratching
as we (any affected parties) all await the vendor fix.=20
I've got an HTTPS application that used to work great when
InterNAP was giving us a path from Dallas to Atlanta over=20
UUNET's network. But when we moved to Plano, InterNAP
started pushing us over AT&T. The RTT is fantastic to our
destination which is why I suppose we have that route but
I suspect that it's not simply ICMP that's getting dropped on=20
AT&T's network. Sorry, I've heard it from mutliple sources
that it's just ICMP that's getting deprioritized/dropped but
I'm skeptical. I've lost a little faith in the InterNAP secret
sauce. :( =20
-----Original Message-----
From: Truman, Michelle, SALES [mailto:mtruman@att.com]
Sent: Friday, March 21, 2003 2:01 AM
To: Mohammed Al Sukkar
Cc: nanog@merit.edu
Subject: RE: Problems with AT&T=20
Mohammed, AT&T is working with the vendor on a fix. It has to be =
compatible with all other protocols and services running in this =
network. This is not a small network and so these things take a bit of =
time. It will be done, but perhaps not fast enough for you. There's =
certainly no telling whether the other carrier you reference is using =
the exact same platform as AT&T, or services. We're cautious about these =
things.=20
Michelle Truman CCIE # 8098
Principal Technical Consultant
AT&T Solutions Center
mailto:mtruman@att.com
VO: 651-998-0949=20
w 612-376-5137=20
-----Original Message-----
From: Mohammed Al Sukkar [mailto:mohammed_al_sukkar@maktoob.com]
Sent: Thursday, March 20, 2003 8:05 PM
To: Truman, Michelle, SALES
Cc: nanog@merit.edu
Subject: RE: Problems with AT&T=20
"Truman, Michelle, SALES Write
>If you are experiencing drops or slow traces, only through the core,
>there is an issue with excessive de-prioritization of ICMP control
>message with a particular router type (vendcor) in the core. End to end
>data flow has not seemed to be affected but trace and ping core
>latencies are looking very wierd. I've been asking customers to use
>trace only for path detail and to use end to end ping for any
>performance data
Problem happen for week and make troubleshoot difficult. Please call =
Avici
Support for download the new Software. Other Carrier have upgrade =
already.
_________________________________________________________
Share your artistic, creative and literary work on My Corner with many, =
many others!=20
http://www.maktoob.com/
