-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Dhaval Shah a écrit : > Hi, > > I am chasing the "beacon stuck issue" with my wifi board. On the > "stuck beacon" wiki page > "http://madwifi-project.org/wiki/StuckBeacon";, user "tsharples" has > commented > > "In the last 3+ years we've used various versions of madwifi > (currently 9.3.3) in dozens of 5.8 Ghz multi-node installations. > We've never come across the SB problem until our most recent > installation which is running on 900Mhz using Ubiquiti SR9's in > what turns out to be a very high-noise environment (indicated noise > floor around -75). We were able to eliminate it there, by > increasing the beacon interval to 1000 msec from the default of 100 > msecs (iwpriv wlan0 bintval 1000). However with the high noise > floor, and packet loss approaching 95%, we still don't have an > operating system, but that's another story. We will try to address > that problem by upgrading to XR9's. Update: Replacing the SR9's > with XR9s and horizontal polarity on the antennas took care of the > interference problems for the most part. However it was still > necessary to set the bintval to 1000 to have a stable system. " > > Can any one explain me what are SR9, XR9 region and horizontal > polarity on antenna? Any reference material will also be helpful. > > Thanks in advance, Regards, Dhaval Shah SR9 and XR9 are two radio card models from Ubiquiti (www.ubnt.com). Horizontal polarity is a property of the antenna (typical when using long distance).
I'm pretty sure stuck beacon is only a consequence of having lots of noise, which prevents beacon from being sent. I'm not sure stuck beacon is really a bug. Of course, a noisy environment will give bad performance.... Regards, Benoit -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAkqL5dsACgkQOR6EySwP7oK/ewCfY3GFdW2uD3xRS6LjDNRJzUXm LvwAnRHCNRAP0eyIcPD9YjKvZMbkxGU7 =jT9u -----END PGP SIGNATURE----- _______________________________________________ ath5k-devel mailing list ath5k-devel@lists.ath5k.org https://lists.ath5k.org/mailman/listinfo/ath5k-devel
