NGEE-Barrow Telemetry Testing - Revision history

imported>Bob at 20:12, 19 November 2015

2015-11-19T20:12:04Z

imported>Bob at 01:44, 18 November 2015

2015-11-18T01:44:07Z

imported>Bob at 00:42, 18 November 2015

2015-11-18T00:42:19Z

imported>Bob at 00:41, 18 November 2015

2015-11-18T00:41:49Z

imported>Bob: Created page with "In November 2015 we did some extended testing of the broadband performance in Barrow to/from the BEO. Basically, transmitting to and from a file 10 megabytes large using secu..."

2015-11-18T00:40:58Z

Created page with "In November 2015 we did some extended testing of the broadband performance in Barrow to/from the BEO. Basically, transmitting to and from a file 10 megabytes large using secu..."

New page

In November 2015 we did some extended testing of the broadband performance in Barrow to/from the BEO. Basically, transmitting to and from a file 10 megabytes large using secure copy to simulate a secure data transfer. Here is a sample chunk of bash script:
<pre>
#!/bin/bash
#xfer_file=100mbfile
xfer_file=10mbfile
size=$(stat -c%s /home/bob/extras/$xfer_file)

# TROUT to ngeedata using secure copy
# first create the date/time string:
START=`date +%s%N`
CRONTIME=$(date +'"%G-%m-%d %H:%M:00",')
# push the file to fairbanks
scp -oport=2222 /home/bob/extras/$xfer_file bbusey@ngeedata.iarc.uaf.edu:/dev/null
END=`date +%s%N`
ELAPSED=`echo "scale=8; ($END - $START) / 1000000000" | bc`
speed=`echo "$size / $ELAPSED / 1024" | bc`
temp1=$CRONTIME$speed
echo $temp1 >> /home/bob/logs/sled-shed-post_antenna_move_to_fai.csv
</pre>

This sequence was done for a number of links (and in reverse but for the most part we are concerned with upload speeds), units are kilobytes per second:
Tram Ethernet Bridge to the Control Shed Dreamplug: 580 (n=46)
Tram Ethernet Bridge to Fairbanks: 77 (n=46)
Within the Control Shed: 3661 (n=46)
Sled Shed to Fairbanks, before the antenna move: 208 (n=72)
Sled Shed to Control Shed: 1405 (n=72)
Control Shed to Sled Shed: 223 (n=421)
Control Shed to BARC: 2647 (n=49)
Control Shed to Fairbanks: 137 (n=254)

@@ Line 18: / Line 18: @@
 echo $temp1 >> /home/bob/logs/sled-shed-post_antenna_move_to_fai.csv
 </pre>
 Trout placed first at Tram Ethernet Bridge and then second at the sled shed.

@@ Line 29: / Line 29: @@
 Sled Shed to Control Shed: 1405 (n=72)<br>
 Control Shed to Sled Shed: 223 (n=421)<br>
-Control Shed to BARC: 2647 (n=49)<br>
+Control Shed to BARC: 337 (n=49)<br>
 Control Shed to Fairbanks: 137 (n=254)<br>

@@ Line 22: / Line 22: @@
 Grayling placed first in the control shed and then second in the BARC someplace.
-This sequence was done for a number of links (and in reverse but for the most part we are concerned with upload speeds), units are kilobytes per second:
+This sequence was done for a number of links (and in reverse but for the most part we are concerned with upload speeds), units are kilobytes per second:<br>
-Tram Ethernet Bridge to the Control Shed Dreamplug: 580 (n=46)
+Tram Ethernet Bridge to the Control Shed Dreamplug: 580 (n=46)<br>
-Tram Ethernet Bridge to Fairbanks: 77 (n=46)
+Tram Ethernet Bridge to Fairbanks: 77 (n=46)<br>
-Within the Control Shed: 3661 (n=46)
+Within the Control Shed: 3661 (n=46)<br>
-Sled Shed to Fairbanks, before the antenna move: 208 (n=72)
+Sled Shed to Fairbanks, before the antenna move: 208 (n=72)<br>
-Sled Shed to Control Shed: 1405 (n=72)
+Sled Shed to Control Shed: 1405 (n=72)<br>
-Control Shed to Sled Shed: 223 (n=421)
+Control Shed to Sled Shed: 223 (n=421)<br>
-Control Shed to BARC: 2647 (n=49)
+Control Shed to BARC: 2647 (n=49)<br>
-Control Shed to Fairbanks: 137 (n=254)
+Control Shed to Fairbanks: 137 (n=254)<br>