Hi LinusLüssing, Thank you for your quick reply. The figure is drawn graph, and placed weight on links. That's what I want to get on the net. 1 - 8 , 11 - 18 wireles routers with batman mesh, blue wireles links. Wireless mesh network only for backup, but it has to be often used. I have made more clear scheme of a network, from the right the network is functioning now and quite vulnerable. From left what I want to build. WR - Wireles router with two Ethernet, One Ap card, One Ad-Hoc card; KKBC - it's router with 4 ethernet links + stp; KM0 - root router; Now used Ad-hoc and routers can only see their neighbors. I want to make that the routers are able to see more after one neighbor, and be able to reach through a nearby corridor to KM0 (links 3444, W4522) if links K40, K47 Will be damaged.
With best regards, Michael;
-------------------------------------------------- From: "LinusLüssing" linus.luessing@web.de Sent: Wednesday, January 05, 2011 4:57 PM To: "The list for a Better Approach To Mobile Ad-hoc Networking" b.a.t.m.a.n@lists.open-mesh.org Subject: Re: [B.A.T.M.A.N.] Mesh network topology problem
Hi Michael,
Welcome to the BATMAN mailing list :). Let me ask some general questions first about what you're trying to achieve. So you are trying to set up a highly fault tolearant network. Does the fault tolerant setup have any time limitations, how quickly do you need to detect outageous and switch? So far it looks like you're having just a wlan0 interface inside of batman-adv, right? So you usually want to use the wired links but use the wireless mesh network as a backup? Could you explain the picture you've attached a little further. I guess (1) - (8) and (11) - (18) are nodes which are running batman-adv, what are (CCbs0/1)? Do blue lines represent the wired links attached to a switch (so 4 switches involved?) and a thin black line the wifi-links? What is a thick black line, what do the numbers represent?
On Mon, Jan 03, 2011 at 03:24:45PM +0600, Michael Y. Gluhovchenko wrote:
Hello All;
I have a problem organizing mesh, each wireless router has a Wifi link and 2 wired links. The problem is that there is the parallel corridor with the same infrastructure. Routers can see each other across the corridor, the signal quality in the corridor is better than the main line. I want to use Linux bridge + stp interfaces bat0, eth0, eth1 wired links have advantages. When break wire links or failure one of the routers need to maintain communication through the mesh. Is it possible to configure mesh so that the link in another corridor with the best quality work in the last turn?
Are you talking about a wireless link here? Which link are you refering to here exactly?
What problems can occur for that network topology.
Well, if done wrong, bridge-loops ;). I think with stp and bridging the wifi-mesh and wired network would be one possible solution, but there are at least two more ways to go. It would be great if you could explain the physical network topology a little more with the help of the picture so that we'd be able to better decide which of those solutions might be most suitable for you.
With best regards, Michael;
Cheers, Linus
PS: Also note, that STP over batman-adv will create quite some overhead, depending on the number of nodes you are running. batman-adv will flood each STP packet through the whole wireless mesh.
