On Monday, May 28, 2012 09:23:11 puyou.lu wrote:

Every nodes run the same version of batman.
I attatch the topology of my mesh network.When b0:c6:9b:80:01:53 is on
(working),b0:c6:9b:80:01:5f can reach b0:c6:9b:80:01:43,and the hole
network is ok.b0:c6:9b:80:01:5b's nexthop to b0:c6:9b:80:01:43 is
b0:c6:9b:80:01:57 or b0:c6:9b:80:01:6c, and sometimes b0:c6:9b:80:01:53.
But when I shut b0:c6:9b:80:01:53 down,it seems b0:c6:9b:80:01:5b can't
reach b0:c6:9b:80:01:57 neither b0:c6:9b:80:01:6c,as I mentioned in my
firt email. When I turn b0:c6:9b:80:01:53 on again,the hole mesh is ok
again.
Marek,can you tell me what the problem probably is.

The mesh connections are too weak without b0:c6:9b:80:01:53 ? 
I don't really have an idea what your setup is and how it looks like to draw 
any meaningful conclusion.

Regards,
Marek