[Testing] Connectivity Test Discussion - test plan from Marvell

[Ronak Chokshi]

Hi Kim and team,

I have listed most of the test cases that we have been working on and
testing. Please feel to add / modify / delete the test cases based on
our discussions on the Wednesday conf. call.

 

http://wiki.laptop.org/go/802.11s_Connectivity_Test_Plan#Test_cases_from
_Marvell_for_the_OLPC_XOs

 

Thanks

Ronak

________________________________

From: Kim Quirk [mailto:kim.quirk at gmail.com] 
Sent: Wednesday, June 06, 2007 5:38 PM
To: Ronak Chokshi; Rajesh Bhagwat; Raja Banerjea; Ramya Dharshini
Chandrasekaran; javier at cozybit.com
Cc: office at laptop.org; Alan Cunningham; Dan Goldish; Christopher
Blizzard; Dan Williams; Marcelo Tosatti; Richard Smith; Andres Salomon;
William Mitchell Bradley; John (J5) Palmieri; Marco Pesenti Gritti;
eben.eliason at gmail.com; testing at laptop.org; miguel at laptop.org
Subject: Re: Connectivity Test Discussion, Minutes from 6/6/07

 

Minutes (also posted on internal wiki, 'Rollout and Deployment')



June 6, 2007 

Attending: Michail, Kim, Jim, Walter, Dan (rh), Miguel, Chris (rh),
Cameron (rh), Zack (rh), Rajab (mv), Ronak (mv), Raja (mv) 

*	Michail went through his low level 802.11s test plan: 

               <http://wiki.laptop.org/go/802.11s_Connectivity_Test_Plan
> 

*	Path Discovery 

	*	Used ping, ran tests over several hours, introduced new
nodes 
	*	Found some lost pings in a noisy RF environment; no loss
in anachoic chamber 
	*	Network randomly creates mesh paths if you don't force
the paths 

*	Communications Integrity 

	*	Frame size (large frames) caused problems, so you need
to use scp to ensure large frames 

*	Performance testing 

	*	Used Iperf 
	*	To establish a baseline need to use UDP between 2 nodes
using 'infrastructure mode' 
	*	Found that XO performance does not go down as quickly as
1/n due to efficiencies in node-to-node connections 
	*	Very difficult to make a repeatable non-forced mesh
topology 
	*	Need to set up tests to look for starvation or memory
issues (over time) 

*	Walter suggested some usage cases: 

	*	60 laptops, everyone talking to everyone 
	*	60 laptops, everyone talking to a server 
	*	15 groups of 4, or 4 groups of 15 (representing kids
collaborating in smaller groups) 

		*	Groups defined geographically (clusters) 
		*	Non-cluster Groups (with remote participants) 

	*	Consider classroom topologies: 

		*	Rows of students 
		*	Circle of students 
		*	Clusters 

*	Tests to be added: 

	*	Multicast and broadcast 

		*	Non realtime 
		*	Realtime 

	*	Dynamic nature of the real world 

		*	Nodes coming and going 
		*	Reconfiguration of the network 

 

*	Action items: 

	*	Marvell India team has 20 laptops; Kim help them to get
40 more B2-2 
	*	India is building up knowledge and an automated test bed

	*	Marvell with add their test plan to the wiki 
	*	Cozybit will provide programmable anycast address 

*	Items for Trial-2 schedule: 

o         

		*	Operating while suspended 
		*	Mesh beacons 
		*	Programmable anycast 
		*	Ascii entry for WEP keys 
		*	Finish support for WiFi compatibility (WPA) 

 

IPv6 discussion 

The applications driving IPv6 are: 

*	management of remote XOs 
*	allowing XOs to find other XOs around the world. 

Need to understand what this requires for XO and for Server and
implement. 

	
	
	
	

 

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