donalod

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donalod

#!/usr/bin/env bash

# Remember to change the "Podomere" SSID to name grab your preferred/connected SSIDs
# Also update the default gateway!
# Change to a SpeedTest server near you from http://www.speedtest.net/speedtest-servers.php
# Pick a small file http://lowendtalk.com/discussion/2178/speed-test-files-1-300-locations
# And run this file from a wifitest directory and put it in your crontab for every minute!

# Note: add your BSSID,APname in to a file called "bssidsapnames.txt" in the same directory!!
# Yes this is a quick and nasty script! All improvements welcome including shortening :)

donalod

2014-09-19_08.06.16 ======NewFile======
2014-09-19_08.06.16 ======Begin=======
2014-09-19_08.06.16 Country Code: DE
2014-09-19_08.06.16 Status: Connected
2014-09-19_08.06.16 PHY Mode: 802.11n
2014-09-19_08.06.16 Channel: 48,-1
2014-09-19_08.06.16 Country Code: DE
2014-09-19_08.06.16 Signal / Noise: -51 dBm / -88 dBm
2014-09-19_08.06.16 Transmit Rate: 300
2014-09-19_08.06.16 MCS Index: 15

donalod

# This is just a gnuplot conf file I have been using on some manipulated data from the Wifi.sh script results.
# First I parse out the high and low SNR to separate files and also slightly reformat the columns and then apply
# the below...
#
set terminal png size 2000, 800
set title "Normal SNR = 20 - 50dBm"
set output "snr_1.png"
set xdata time
set timefmt "%Y-%m-%d_%H.%M.%S"
set xlabel "Time"

donalod

#!/usr/bin/env bash
# This script takes the input from a manual PoE dump of telemetries of interfaces on a Juniper EX2200.
# As the date command is doing a parsing function that only GNU date can do, this bit must be
# run on linux or some such and not OSX. Your log file name in this example would be 'p'.

while read line; do
  #echo "$line"
  cleanline=$(echo $line|tr -s ' '|cut -f2,3,5,6 -d" ")
  #echo "$cleanline"
  date=$(echo $cleanline| cut -f1 -d" ")

donalod

#!/usr/bin/env bash

grep -i "UPS:" ./u > u1

statehigh=""
statelow=""

while read line; do
  #echo "$line"
  cleanline=$(echo $line|tr -s ' ')

donalod

set terminal png size 2000, 800
set title "West Side Channel 161 and Channel 52 Normal SNR = 20 - 50dBm"
set output "snr_201014.png"
set xdata time
set timefmt "%Y-%m-%d_%H.%M.%S"
set xlabel "Time"
set key left center
set grid
set bmargin at screen 0.2
set xtics format "%b %d %H:%M"

donalod

set terminal png size 2048, 800
set title "Normal SNR = 20 - 50dBm"
set output "snr_190914-141014.png"
set xdata time
set timefmt "%Y-%m-%d_%H.%M.%S"
set xlabel "Time"
set key center center
set grid
set bmargin at screen 0.2
set xtics format "%b %d  -- %H:%M"

donalod

Wireshark/tshark onboard for deeper troubleshooting on OSX?

Monitor Mode (disruptive) for 802.11 Management and Control Frames which contain much richer data about signal, capabilities, other nodes etc..
Note: Testing for more specific/useful frames but right now we just want access to some richer data that can be easily manipulated when a user or network has issues i.e. when "/usr/sbin/system_profiler SPAirPortDataType" and "/System/Library/PrivateFrameworks/Apple80211.framework/Resources/airport" are not enough (as per https://gist.github.com/donalod/ba467ffdb2a2531cd13e )

/usr/local/bin/tshark -i en1 -I -L
Data link types of interface en1 when in monitor mode (use option -y to set):
  IEEE802_11_RADIO (802.11 plus radiotap header)
  PPI (Per-Packet Information)
  IEEE802_11 (802.11)

donalod

# In one terminal run the below (ensuring you have *wireshark/tshark* installed)... 
# or you can backround the process too of course with '&' or 'screen'...
# but remember this will put your OSX radio in monitor mode until you stop the process :)

/usr/local/bin/tshark -q -i en1 -I -y IEEE802_11_RADIO -Tfields -e wlan.fc.retry > retries.dat


# In another terminal run the following (or create a script file) + ensure you have *gnuplot* installed :)

while true ; do tail -n 200 retries.dat | gnuplot -e "set term dumb size 100,40; set yrange [0:1.5]; plot '-' with linespoints" ; sleep 1 ; done