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Date: Tue, 1 Jun 1999 07:58:54 -0700
To: "Anne M. Hammond" <hammond@solarz.Colorado.EDU>
From: "David A. Guevara" <dguevara@mail.arc.nasa.gov>
Subject: Re: route from hydra-atm1.colorado.edu -> jsimpson-h.gsfc.nasa.gov
Cc: bill@wizard.nasa.atd.net, mitchell@jila.Colorado.EDU,
litvanyi@spot.Colorado.EDU, hammond@hydra.colorado.edu,
brummell@hydra.colorado.edu, dguevara@mail.arc.nasa.gov
Content-Length: 1929
anne --
the route between hydra-atm1 and jsimpson-h is back up. there seems
to be a congestion problem. currently our rtt is running about 104ms
(approximately twice the value we had at the beginning of this project).
I think the problem lies with vBNS. See below for traceroutes from
hydra-atm1 and jsimpson-h:
hydra <~>traceroute jsimpson-h.gsfc.nasa.gov
traceroute to jsimpson-h.gsfc.nasa.gov (169.154.161.43), 30 hops max, 40
byte pa
ckets
1 198.11.22.25 (198.11.22.25) 1 ms 1 ms 1 ms
2 204.131.62.38 (204.131.62.38) 3 ms 3 ms 3 ms
3 cs-atm0-0-14.rto.vbns.net (204.147.130.117) 33 ms 33 ms 33 ms
4 cs-atm0-0-13.dng.vbns.net (204.147.129.145) 81 ms 204 ms 81 ms
5 204.147.128.198 (204.147.128.198) 82 ms 82 ms 83 ms
6 gsfc-chi.nren.nasa.gov (198.10.64.49) 97 ms 97 ms 97 ms
7 192.12.123.42 (192.12.123.42) 98 ms 98 ms 98 ms
8 rtr-900-giga-a.gsfc.nasa.gov (169.154.32.3) 98 ms 98 ms 98 ms
9 * jsimpson-h.gsfc.nasa.gov (169.154.161.43) 100 ms 100 ms
jsimpson% /etc/traceroute hydra-atm1.colorado.edu
traceroute to hydra-atm1.colorado.edu (198.11.22.12), 30 hops max, 96 byte
packe
ts
1 169.154.161.1 (169.154.161.1) 6.397 ms 7.808 ms 5.467 ms (6.0/6.000)
2 rtr-atm-a.gsfc.nasa.gov (169.154.1.1) 8.553 ms 8.924 ms 11.023 ms
(8.0/9.
000)
3 192.12.123.41 (192.12.123.41) 9.189 ms 5.739 ms 7.83 ms (7.0/7.000)
4 chi-gsfc.nren.nasa.gov (198.10.64.50) 20.339 ms 22.183 ms 22.424 ms
(22.0
/21.333)
5 204.147.128.197 (204.147.128.197) 21.977 ms 23.711 ms 23.756 ms
(23.0/22.
333)
6 cs-atm0-0-12.rto.vbns.net (204.147.129.146) 69.767 ms 72.649 ms
69.713 ms
(69.0/70.000)
7 cs-atm0-0-14.dnj.vbns.net (204.147.130.118) 99.653 ms 101.246 ms 105.729
ms (101.0/101.667)
8 204.131.62.37 (204.131.62.37) 103.403 ms 106.348 ms 104.908 ms
(104.0/104
.333)
9 hydra-atm1.Colorado.EDU (198.11.22.12) 103.892 ms 104.416 ms 107.273
ms (
104.0/104.667)
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