It if helps to have comparison, I'm running Backfire 10.03.1 on a collection of UBNT M5 2x2 MIMO gear in adhoc mode at HT speeds. Some quick-n-dirty tests doing downloads with curl are getting roughly 40Mbit/s between adjacent nodes. Although, I'm using adhoc mode instead of mesh mode.
Here is what iw station dump on each node has to say about its neighbor: Station 00:15:6d:xx:xx:x1 (on wlan0) inactive time: 20 ms rx bytes: 1518147670 rx packets: 16222572 tx bytes: 2775534297 tx packets: 6183642 tx retries: 1190905 tx failed: 266 signal: -67 dBm signal avg: -66 dBm tx bitrate: 135.0 MBit/s MCS 7 40Mhz rx bitrate: 108.0 MBit/s MCS 11 40Mhz Station 00:15:6d:xx:xx:x2 (on wlan0) inactive time: 10 ms rx bytes: 3161319397 rx packets: 9430897 tx bytes: 315979120 tx packets: 2137676 tx retries: 211650 tx failed: 9140 signal: -70 dBm signal avg: -69 dBm tx bitrate: 108.0 MBit/s MCS 11 40Mhz rx bitrate: 135.0 MBit/s MCS 7 40Mhz On Wed, Apr 18, 2012 at 7:33 PM, Ray Gibson <rgib...@futurec.net> wrote: > ** > On 4/18/2012 5:15 PM, Ben West wrote: > > If the access points are very close together, you might also try turning > down TX power on both ends. > > What is the dBm reported by iw station dump at each end? Anything below > 60dBm might indicate the radios are talking way too loud. > > > While they were sitting at -40 for a little while I turned the tx power on > both sides way down to achieve about -62. I also have RF terminators I > have tried with that bring it down into the -70's at close range. Each > scenario seems to produce the same result. > > I seem to have an excessive amount of tx retries as well, I wonder if that > has something to do with it? Which makes me think it's more of a hardware > issue. I don't know. > > Thanks (and sorry for the company footer, I can't turn it off) > > > > On Wed, Apr 18, 2012 at 7:09 PM, Ray Gibson <rgib...@futurec.net> wrote: > >> Hello, >> >> I've just spent the last few hours reading many threads in the archives >> from this list. I'm hoping someone may be able to help me, else I think I >> have a batch of bad radios. >> >> Summary: hardware is two identical routerstation pros running OpenWRT >> bleeding edge from 2012-03-14 (with a compat-wireless from february I >> believe). SR71-A (ath9k) radio in each. >> >> I'm bringing up the interfaces in each like this: >> >> iw phy0 interface add wlan0 type mp >> iw phy0 set channel 36 HT40+ >> iw wlan0 set meshid TheMeshID >> ifconfig wlan0 up >> brctl addif br-lan wlan0 >> >> Running iperf in either direction produces a range of 13-16 Mbits/sec >> when I can point to countless examples in the mailing list archives that >> show people getting significantly higher bandwidth. >> >> While pushing my test through, an `iw dev wlan0 station dump` on either >> node often shows the bitrates at: >> >> 300.0 MBit/s MCS 15 40Mhz short GI >> >> I'm getting similar, if not poorer results on higher 5ghz channels (149+, >> 157+). Am I horribly misconfiguring something or is it my hardware? My >> antennas are 3x3 panels spaced about 10 meters apart. >> >> Thanks for any insight, >> >> -- >> Ray Gibson >> Future Concepts IS Inc. >> 909-593-6705 x2096 >> >> >> >> >> This communication constitutes an electronic communication within the >> meaning of the Electronic Communications Privacy Act, 18 USC 2510, and its >> disclosure is strictly limited to the recipient intended by the sender of >> this message. This e-mail and any files transmitted with it are proprietary >> and intended for the sole use of the individual or entity to whom they are >> addressed. They are not to be viewed, shared, copied or forwarded, >> regardless to whom, without the expressed permission of Future Concepts >> I.S., Inc. If you have received this e-mail in error, please notify the >> sender and immediately delete it from your system. Thank you. >> >> _______________________________________________ >> openwrt-devel mailing list >> openwrt-devel@lists.openwrt.org >> https://lists.openwrt.org/mailman/listinfo/openwrt-devel >> > > > > -- > Ben West > http://gowasabi.net > b...@gowasabi.net > > > _______________________________________________ > openwrt-devel mailing > listopenwrt-devel@lists.openwrt.orghttps://lists.openwrt.org/mailman/listinfo/openwrt-devel > > > -- > Ray Gibson > Future Concepts IS Inc.909-593-6705 x2096 > > > > > This communication constitutes an electronic communication within the > meaning of the Electronic Communications Privacy Act, 18 USC 2510, and its > disclosure is strictly limited to the recipient intended by the sender of > this message. This e-mail and any files transmitted with it are proprietary > and intended for the sole use of the individual or entity to whom they are > addressed. They are not to be viewed, shared, copied or forwarded, > regardless to whom, without the expressed permission of Future Concepts > I.S., Inc. If you have received this e-mail in error, please notify the > sender and immediately delete it from your system. Thank you. > > _______________________________________________ > openwrt-devel mailing list > openwrt-devel@lists.openwrt.org > https://lists.openwrt.org/mailman/listinfo/openwrt-devel > > -- Ben West http://gowasabi.net b...@gowasabi.net
_______________________________________________ openwrt-devel mailing list openwrt-devel@lists.openwrt.org https://lists.openwrt.org/mailman/listinfo/openwrt-devel
