[Babel-users] Babel for use in a dense disconnected mesh network

[Gabriel Kerneis]

On Fri, Jun 21, 2013 at 12:26:04PM +1200, Jason Palmer wrote:
> Raspberry Pi, Arch Linux, babel 1.4.0, TP-Link TL-WN721N USB Wi-Fi adapter. 
> > 
> > Are you running network manager or something similar?  These messages
> > indicate that your interfaces are going up/down at a tremendous rate.
> > 
> I have a systemd service manually bringing up the interface, and then starting
> babeld.

I am using the same hardware, and I have observed that the interface goes up and
down spontaneously from time to time, probably because of USB rather than
network issues.  It might help to check that you have one of the latest
Raspberry Pi (better usb design) and that your power supply is sufficient.  My
first tests with an early Pi and bad power supply caused the interface to go up
and down several times per second (although it's probably not your case,
otherwise the network would be unusable even with 10 nodes).

By the way, Juliusz, I believe that ahcpd does not reassign an address to the
interface when it goes up again, but I've had a hard time reproducing the issue.
Is it a case it should handle correctly in theory, or a shortcoming of the
implementation?

Best,
-- 
Gabriel