access <-> sdsc ip multicast
Borchers, Robert R
rborcher at nsf.gov
Fri Jul 28 12:44:59 CDT 2000
Bill, SDSC can no longer see or hear NSF but they can see and hear ACCESS.
They also cannot see my Beacon and their column and row on Beacon Viewer is
all reds and yellows. Bob
-========================================================
Robert R. Borchers, Director ACIR Division
National Science Foundation 4201 Wilson Boulevard
borchers at NSF.GOV Arlington, VA 22230
Phone: (703) 306-1970 FAX: (703) 306-0632
Cellular: (703) 627-3749 www.cise.nsf.gov/acir
-========================================================
-----Original Message-----
From: Bill Nickless [mailto:nickless at mcs.anl.gov]
Sent: Friday, July 28, 2000 1:32 PM
To: Nancy Wilkins-Diehr
Cc: Tom Coffin; Borchers, Robert R; Harry Ammons; Jay Dombrowski;
sheddon at SDSC.EDU; jsheehan at ncsa.uiuc.edu; dgatchell at nsf.gov;
ag-tech at mcs.anl.gov; Zaid Albanna
Subject: Re: access <-> sdsc ip multicast
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At 09:08 AM 7/28/2000 -0700, Nancy Wilkins-Diehr wrote:
>Hi Tom,
>
>I believe 3pm/e, noon/pdt will work for us for a test. I know Jay is
>teaching a class right now and Harry is on his way in so I thought I'd
>speak for them just to keep things rolling. Does ANL believe the
>routing problems have been worked out?
>
>Nancy
I was about to say "yes" until I looked at the IP multicast beacon
reporting web page at
http://beaconserver.accessgrid.org:9999
While the routing seems to be working, we are seeing packet loss of 30% or
more both getting into and getting out of SDSC. This isn't just to ACCESS
so I'm pretty sure it's an SDSC-specific problem.
As always I stand ready to help. Just let me know how.
===
Bill Nickless http://www.mcs.anl.gov/people/nickless +1 630 252 7390
PGP:0E 0F 16 80 C5 B1 69 52 E1 44 1A A5 0E 1B 74 F7 nickless at mcs.anl.gov
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