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Version vom 10. November 2011, 16:48 Uhr

0xFF-Backfire Vienna - Testing days 2011

Our Funkfeuer networks in Vienna, Graz, Bad Ischl, Weinviertel and many small initiatives in Austria grew to a respectable size. For a long time these communities have been highly influenced by Sven-Ola and the Berlin Freifunk Firmware.

However, time did not stand still and due to the very good compact design of Ubiquity and the unbeatable price of TP-Link time has come to take a look at new products which mainly build upon the successful atheros chipset line.

The 0xFF-Backfire Vienna firmware managed to offer a reasonable snapshot of the most common used settings of the Vienna Funkfeuer network. In addition this firmware manages to fulfill most requirements of above mentioned atheros based devices.

Therefore, theses "testing days" also have the goal of improving the 0xFF-Backfire Vienna firmware images. Mistakes in configuration and settings shall be discovered and solved.


Goals

Compatibility

When introducing a new software generation (0xFF-Backfire Vienna) it is crucial to maintain compatibility with existing devices and configurations Therefore our first goal shall be to prove the compatibility of the new software with the existing devices (hard- and software compatibility tests). Tests will be done under lab-conditions (with professional testing equipment). Only after this test, we can claim the new software and hardware generation to be our new (Funkfeuer) "standard" setup.

Myths

Over the course of the last years in Funkfeuer, a couple of myths developed around devices and configuration settings. The goal of the tests thus shall be to eliminate these myths or to confirm them via rigorous tests.

Standard Configuration

Funkfeuer has a large and diverse set of devices in it's network. The support for these devices deteriorated over the last years. Goal of the "testing days" shall be to find a smaller set of confirmed working hardware devices + firmware + settings combination which is easy enough for newcomers. Later, when a newcomer gained experience, experiments will be available anyway.

Rating:

We also want to rate different combinations in order to give newcomers a basis for deciding which hardware they should buy.

Organizational things

Date & Time

  • Sat, 15.10.2011, 10:00 - 22:00
  • Sun, 16.10.2011, 10:00 - 17:00

Location:

ORF- Zentrum Wien Würzburggasse 30, A-1136 Wien, Raum: GPS 0.3 Orientierungsplan

Reachability:

  • U4 Station Hütteldorf. 58b -> Stop ORF-Zentrum
  • U6 Philadelphiabrücke - 8a -> Stop ORF-Zentrum


Participants

list of participants


Schedule

Agenda

lage

15th Oct 2011
10:00 - 11:00 Welcome & Socializing
11:00 - 12:00 Agenda & MeetingPlanning
12:00 - 13:00 Lunch
13:00 - 18:00 Workshops 1st Part
18:00 - 19:00 Dinner
19:00 - 22:00 Workshops 2nd Part
16th Oct 2011
10:00 - 10:30 Welcome & Review
10:30 - 13:00 Presentation & Discussion (dokuSTREAM)
13:00 - 14:00 Lunch
14:00 - 16:30 Presentation & Discussion (testSTREAM)
16:30 - 17:00 Closing


Printable agenda


dokuStream: Specification & Documentation
"we want to improve the WIKI, structure it, create pictures and screenshots of the installation and we want to define the base-setup of any 0xFF-Backfire Vienna setup"
Specifically we want to handle these Work-Packages:


testStream: Testing
"Here we will handle technical issues concerning the Backfire Vienna firmeware as well as technical issues of hardware. We intend to produce confirmed and repeatable statements concerning transmission power, sensitivity of devices. We also want to do some 'mythbusting'"
Specifically we want to handle these Work-Packages:


Please take a look at the individual packages and decide upfront where you want to participate.


Testobjekte & Tests:

This section lists all devices and configutations and compatbility tests which will be measured in the 0xFF-Backfire Vienna testing days 2011. (please add any that you want to have tested)


Testobjects:

Type Beisteller 1* Beisteller 2*
Bullet2 Joe Amadeus
Bullet5  ?  ?
Bullet M2 Martin A.  ?
Bullet M5 Joe Martin A.
AirGrid M2 Joe  ?
AirGrid M5 Harald  ?
Nanostation Loco M2 Gregor Runout
Nanostation Loco M5 Erich ?  ?
Nano Bridge M5 Joe markit
TL-1043ND Martin A. Runout (currently at Alex S.)
TL-741ND Joe  ?
TL-743ND Runout  ?
R52 Joe markit
evt. R52N + boards markit markit
(maybe) Rocket + mimo antennas markit markit
WRT54GL Martin A. Erich
Buffalo WHR-HP-G54 Thomas K. Joe
wlan-usbsticks  ? markit
Alix Boards mit R52hn Aaron Aaron
QMP node [1] p4u roger
Compex WPE 72-7A [2] & Compex WLE200NX [3] p4u p4u
please add  ?  ?

* in order to minimize individual errors of individual devices, please take two of each device

Tests:

Testname* Testtype** Testobject*** Testpartner**** Description Proposed by
TX power of the device G all Does the measured tx power match up with the txpower setting in the firmware? Joe
Sensitivity of the device G all reference device Compare the sensitivities. Until when (which SNR limit) can we achieve good throughput (bits/sec rate)? (due to the testing method we will not be able to do tests for 802.11n in this case) Joe
correctness of the SNR values G alle reference device/ source Vergleich, ob die WLAN Parameter (SNR, noise, signal, biterror rate (?)) auch dem entspricht, was physikalisch stimmen sollte. Manche Treiber "schummeln" und liefern ungenaue Werte. Korrekte Werte bzw. bekannte Korrekturfaktoren sind aber wichtig, um SNR basierte Metriken fuer OLSR zu entwickeln Aaron
Mythos ESSID bei AdHoc-Mode K noch festzulegen noch festzulegen Welchen Einfluss hat die Vergabe gleicher oder ungleicher ESSID bei der Verwendung von Backfire zu Backfire, von Backfire zu Freifunk, von Broadcom zu Broadcom, von Broadcom zu Atheros (oder madwifi zu ath9k),... Joe
Zuverlässigkeit des Auto-Modes bei der Frequenzwahl K ausgewählte Geräte Gerät mit fixer Kanalzuteilung Joe
Multi-SSID-Mode K/G alle Diverse Geräte Ist ein das Gerät in der Lage mehrere SSIDs auszustrahlen, ad-hoc und station mode nebeneinander zu betreiben und kann man auch tatsächlich über beide SSIDs verbinden. Erich
max.Datenraten G einige diverse Geräte max.speed mit min.dBm und speed-diff ad-hoc zu master-client Harald
EIRP-Messung G einige diverse Geräte in einigem Abstand (10-20m) 1-2-3 devs gleichzeitig Wird schwierig, da wir keinen Messraum haben und so mit ext. Störungen zu rechnen haben (Joe) Harald
bridge or not G tp-link1043 u.a.switches mit vlans - bridge-hakerl am lan od. wan ? Harald
ips lokal-global G tp-link1043 u.a.switches sind mit vlans am lokal port globale ips nötig Harald
real world throughput single-hop G welche wlan treiber && settings sind auf identer funkstrecke/(und idealerweise hardware) wie nützlich markit
real world throughput multi-hop G same as above, aber zusätzlich wieviel stören dann nachbar kanäle, etc. markit
loco or nanobridge G klein vs. gross && keine schirmung vs. schüssel markit
bitte nächsten Test hinzufügen

* Eindeutiger Name der Testanordnung ** Gerätetest, Parametertest(G), Kompatibilitätstest(K) *** Name des Gerätes, das untersucht werden soll **** Gegenstelle, die bei Kompatibilitätstest der WLAN-Schnittstelle verwendet werden soll a