Hi,
i'm participating in the development of a wireless mesh network in Delta de Tigre, near Buenos Aires, Argentina. Landscape is absolutely flat, with dense forest 15-20mts tall. Nodes are being installed along the river, 50 - 150mts apart, with clear LOS at ground level. I collaborated with Nico Echaniz last month, bulding another community network in Cordoba, and given the success, I decided to start one more here. I'm also really thankful with Elektra, for recommending the tl-m3220 to Nico! We chose batman over olsr, in part because of avahi stuff, but also to have a real-world implementation and thus collaborate in testing / debugging :) So far, there are only 4 working nodes, but luckily I'm already facing unexpected behaviour.
I'm sorry for the long email, it's mostly terminal logs. In short, iperf between two neighbouring nodes reports >20mbps, yet running the same iperf between nodes separated by one hop reports inexplicably low <5mbps.
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Any ideas, thoughts, pointers? Any additional info needed?
welcome on the list! I admit not having dived into all the details of your mail - the bigger part of the batman team is sitting in Athens at the moment (see battlemesh.org). The best next step is to find out whether this performance issue is a batman- adv or a wifi driver problem. May I suggest you remove batman-adv and repeat the same test using static routing ? If you still see the problem it is the wifi that is not working otherwise we have to fix batman-adv.
Regards, Marek