On Sun, Feb 01, 2015 at 11:31:34PM +0530, Ashish Gupta via Devel wrote: > The number of simultaneous file downloads was set to 16 and the link speeds > were varied from 100 kbps to 1400 kbps using the tc utility on both the > intermediate machines (G1 and G2).
Okay, I understand the experimental setup now - tc is being used to limit the link speed, I missed that originally. With two gates, aggregate throughput available is 2x a single gate. It would also be interesting to know how much worse "combined" is compared to two gates with twice the combined bw limit, to see what the overhead in mesh looks like. Just to restate what Chun-Yeow said, you probably know this already, but one thing to watch out for in an actual deployment is if both gates are in the same coverage area and same channel, then adding more gates won't buy additional bandwidth since only one of the two gates gets to transmit at a time. This can potentially be mitigated by operating on multiple channels, reducing tx power, and spatially separating the nodes. Or maybe some expensive/crazy beamforming techniques :) Another question is whether you've considered or approached the problem of arbitrary network topologies being bridged through multiple gates. Normally we have to run STP on the gates to prevent loop formation in this case, but STP doesn't work all that well with mesh. Thank you for sharing your interesting work! -- Bob Copeland %% http://bobcopeland.com/ _______________________________________________ Devel mailing list [email protected] http://lists.open80211s.org/cgi-bin/mailman/listinfo/devel
