[Battlemesh] About a testbed - what is the status

[Benjamin Henrion]

On Tue, Jul 28, 2015 at 10:37 PM, Benjamin Henrion <zoobab at gmail.com> wrote:
> On Tue, Jul 28, 2015 at 9:03 PM, Mitar <mitar at tnode.com> wrote:
>> Hi!
>>
>> Could we assure this things work before the event? Not that we spend
>> debugging the issues during?
>>
>> So could you compile images for all the devices we are having at the
>> event so that people can try them in advance?
>>
>> Also, which documents are there now for what would be the topology of
>> the testbed? What I worry is that we should not be generating the
>> traffic with same nodes we are doing routing with. So is this separated?
>> Some nodes are doing only routing, other have a independent WiFi channel
>> to communicate control plane over, and then we have dedicated edge
>> machines which generate test traffic.
>
> Unfortunately I won't be able to come this year, but I wanted to
> propose a simple test to discard all those routing protocols that do
> not understand multiple channels, and rely on simple packet loss tests
> to decide which route to take.
>
> As I explained it at WBMv3, staying on the same channel should be
> mostly then switching of channel.
>
> So a simple D test like this:
>
> A
> |
> B-D
> |  |
> C-E
>
> where:
>
> * all the 5 nodes are 1 radio, 1 ethernet)
> * B-D and C-E are ethernet cabled
> * A-B-C is channel1 2.4Ghz
> * D-E is channel 11 2.4Ghz
>
> Additionally, there should be 2 ethernet traffic generators (iperf or
> other) connected to A and C so that routers are only routing.
>
> Intelligent routing protocols should do A-B-D-E-C and not A-B-C.
>
> Babel with the -z feature should behave like this, it is in Babel
> since post-WBMv3, but it was never really tested.
>
> If someone has the time to implement this testbed, I would be
> interested by the results.
>
> Now I don't know if it can be modified to fit dual-band APs, or if B-D
> can be merged into our router.
>

Also, I can lend some USB batteries to power some routers over 5V... I
think many of you have such batteries, now I don't know what kind of
input voltage the Netgear 4300 routers require.

-- 
Benjamin Henrion <bhenrion at ffii.org>
FFII Brussels - +32-484-566109 - +32-2-4148403
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