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Subject: CCPR 6772 [Fwd: TTS #7207 Update - JLab<->U of Richmond Packet Losses]

To: ggilfoyl@richmond.edu, kowalski@jlab.org
Subject: Subject: CCPR 6772 [Fwd: TTS #7207 Update - JLab<->U of Richmond Packet Losses]
From: ccpr_reply@jlab.org
Date: Tue, 27 Feb 2001 16:46:03 -0500 (EST)
Cc: kowalski@jlab.org, ccollins@jlab.org, wells@jlab.org, hartman@jlab.org, sstevens@jlab.org, philpott@jlab.org, kelvin@jlab.org, wise@jlab.org

The following is a reply to CCPR report from Sandy.Philpott@jlab.org


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 Any improvement?
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 Date: Tue, 27 Feb 2001 16:48:19 -0500
 To: John Paul Jones <jpj@es.net>, Sandy Philpott <Sandy.Philpott@jlab.org>
 From: John Lawson <lawsonj@vt.edu>
 Subject: Re: TTS #7207 Update - JLab<->U of Richmond Packet Losses
 Cc: chiles@vt.edu, "trouble@es.net" <trouble@es.net>, hector@vt.edu
 
 Folks,
 Has this improved any at all. We found a configuration problem with the
 IBGP peering between the GSR and 7507.
 
 John
 
 At 01:54 PM 2/26/01 -0800, John Paul Jones wrote:
 >Hi Sandy,
 >
 >    This looks like ther may be a problem somewhere past our handoff with
 >Network Virginia.  Traceroutes are blocked after that point until the end host
 >is reached.
 >___________________________________________________________________________
 >cebaf-rt1#trace psc1.richmond.edu
 >Tracing the route to psc1.richmond.edu (141.166.222.211)
 >  1 dchub-jlab.es.net (134.55.208.81) 20 msec 20 msec 20 msec
 >  2 dcconn-dchub.es.net (134.55.208.174) 44 msec 44 msec 40 msec
 >  3 nvirginia-dcconn.es.net (198.124.254.26) 44 msec 48 msec 44 msec
 >  4  *  *  *
 >  5  *  *  *
 >  6  *  *  *
 >  7  *  *  *
 >  8  *  *  *
 >  9  *  *  *
 > 10  *  *  *
 > 11  *  *  psc1.richmond.edu (141.166.222.211) [AS 7066] 80 msec
 >___________________________________________________________________________
 >We can get to Network Virginia from our router at JLab with no losses, but when
 >the pings are run to the first Network Virginia hop & to the psc1.richmond.edu
 >host simultaneously, the problem is clearly past ESnet.
 >___________________________________________________________________________
 >To Network Virginia - First Handoff Point Past ESnet
 >
 >cebaf-rt1#ping 198.124.254.26
 >Sending 1000, 100-byte ICMP Echos to 198.124.254.26, timeout is 2 seconds:
 >!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 >!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 >!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 >!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 >!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 >!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 >!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 >!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 >!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 >!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 >!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 >!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 >!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 >!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 >!!!!!!!!!!!!!!!!!!!!
 >Success rate is 100 percent (1000/1000), round-trip min/avg/max = 40/49/376 ms
 >
 >Simultaneously To Richmond End Host psc1.richmond.edu
 >
 >cebaf-rt1#ping 141.166.222.211
 >Sending 1000, 100-byte ICMP Echos to 141.166.222.211, timeout is 2 seconds:
 >..............................!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 >!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 >!!!!!!!!!!!.!!!!!!!!!!!!.!!.!!!!..!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 >!!!!!!!!!!.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!.!!!!!!!!!!!!!!!!!!!!!!!!!
 >!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 >!!!!!!!!!!!!!!!.!!!!!!!.!!!!!!!!!!!!!!!!!!!!!!!!!!!!..................
 >.................!!!!!!!!!!!!!!!!!!!!!!!!!!!!.!!!!!!!!.!!!!!!!.!!!!!!!
 >!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!.!!!!!!!!!!!!!!!!
 >!!!!!!!!!!!!!!!!!.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!.!!!!!!!!
 >!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 >!!!!!!!!.!!!!!!!!!!!!!!!!!!!!!!!!!.!!!!!!!.!!!!!!!!!!!!!!!!!!!!!!!!!!!
 >!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 >!!!!!!!!!!!!!!!!!.................................!!!!!!!!!!!!!!!!!!!!
 >!!!!!!!!!!!!!!!!!!!!.!!!!!!!.!!!!!.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 >!!!!!!!.!!!!!!!!!!!!
 >Success rate is 87 percent (879/1000), round-trip min/avg/max = 76/84/256 ms
 >___________________________________________________________________________
 >Some of these packet losses look like normal network congestion somewhere
 in the
 >path between Network Virginia & the University of Richmond end host.  However,
 >the consistent, long outage times indicate some other problem.  I'm cc:'ing the
 >Network Virginia NOC to see if they can be of further assistance to you.
 >
 >Network Virginia NOC, is there any condition you might be aware of that would
 >account for these 70 second outages?  Granted, this could also be a problem at
 >the user end's network but we have no visibility to check further.  Your
 >assistance would be appreciated.  Please reply with your findings to
 >trouble@es.net referencing our ticket TTS #7207.  Thanks, John.
 >
 >ESnet Operations, please update TTS #7207.  Thanks, John.
 >___________________________________________________________________________
 >John Paul Jones                                 E-Mail:          jpj@es.net
 >Lawrence Berkeley National Laboratory           ISU Voice:   (208) 282-5196
 >Energy Sciences Network - ESnet                 LBNL Cell:   (510) 604-7434
 >Network Technical Service Group                 Pager:    page-jones@es.net
 >To view an open trouble ticket:        finger <ticket-number>@ticket.es.net
 >ESnet   -   Connecting people, information and resources. http://www.es.net
 >___________________________________________________________________________
 >
 >
 >
 >
 
 
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