On Fri, Feb 27, 2015 at 1:37 PM, Curtis Villamizar <[email protected]> wrote: > In message > <cagnrvupwf3n9jqmi_txwbxketo_59zdqqapcfcsyfduvqp8...@mail.gmail.com> > Henning Rogge writes: > >> On Wed, Feb 25, 2015 at 9:36 PM, Curtis Villamizar >> <[email protected]> wrote: >> > In message <[email protected]> >> > Juliusz Chroboczek writes: >> >> As to wireless links -- as far as I'm aware, making efficient use of >> >> wireless L2 information in a routing protocol is an open research problem. >> > >> > Other than signal strength and collision rate, what L2 information is >> > available? Per MAC information would be nice for the AP side or any >> > node in mesh or adhoc mode but that isn't collected anywhere AFAIK. >> >> Raw linkspeed and (on Linux) even Throughput to each neighbor... and a lot >> more. >> >> Just run "iw wlan0 station dump" on a Linux system with wifi and you >> will be surprised how much information you will get. >> >> Henning Rogge > > > Henning, > > How can a router make use of throughput to a mostly idle neighbor? > How do you get packets sent to a neighbor that dropped or packets that > a neighbor sent to you that didn't arrive here? Raw link speed or > packet and byte counts don't by themselves tell you much. The > equivalent of PPP LQM or MPLS-TP LM OAM would be the sort of thing > needed is you didn't want to use BFD with a high probe rate. > > As I said above (or tried to say), the most useful hints that the link > isn't as good as nominal link speed might indicate might be signal > strength and collision rate. [What I meant above by "available" was > available and useful for "making efficient use of wireless L2 > information in a routing protocol" in the quoted text. So maybe I was > too terse in saying that.] > > Thanks for the response though. I use FreeBSD and other than rate and > S/N there isn't much, so could you send me sample output from a Linux > host or better yet a Linux AP with a few "neighbors". We can take > this off list and discuss the sample output but so far "lots of stuff" > (sic) doesn't help. > > Curtis > > > ps - maybe I should stop procrastinating and compile and flash openwrt > and see for myself, but for now ...
You don't have to compile a thing, just download the right nightly from chaos calmer (preferred as hnetd etc are in it), and flash it. Everyone here, has been 90 bucks, 5 minutes and one reflash away from eating it's dogfood for 9+ months now. http://downloads.openwrt.org/snapshots/trunk/ > _______________________________________________ > homenet mailing list > [email protected] > https://www.ietf.org/mailman/listinfo/homenet -- Dave Täht Let's make wifi fast, less jittery and reliable again! https://plus.google.com/u/0/107942175615993706558/posts/TVX3o84jjmb _______________________________________________ homenet mailing list [email protected] https://www.ietf.org/mailman/listinfo/homenet
