Hi, You can try disabling 11n (ifconfig -ht) but besides that, there's no real iwn maintainer or anyone who wants to get really nitty gritty into what the driver is doing. So until that happens, I think we're short of luck. :(
-a On 19 August 2014 12:53, Johannes Dieterich <dieterich....@gmail.com> wrote: > Dear all, > > I have a Intel Centrino Advanced-N 6205 WLAN NIC in my Thinkpad using iwn. > > iwn0@pci0:3:0:0: class=0x028000 card=0x13118086 chip=0x00858086 rev=0x34 > hdr=0x00 > vendor = 'Intel Corporation' > device = 'Centrino Advanced-N 6205 [Taylor Peak]' > class = network > > Unfortunately, I only get a rather bad speed using CURRENT (r270098) out of > the chip. It is connected to an 11n (on the 2.4 GHz band) network: > > wlan0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500 > nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL> > media: IEEE 802.11 Wireless Ethernet MCS mode 11ng > status: associated > ssid XXXXX channel 4 (2427 MHz 11g ht/20) bssid XXXXXXXXXX > country US authmode WPA2/802.11i privacy ON deftxkey UNDEF > TKIP 2:128-bit txpower 15 bmiss 10 scanvalid 60 bgscan bgscanintvl 300 > bgscanidle 250 roam:rssi 7 roam:rate 64 protmode CTS ampdulimit 64k > ampdudensity 8 -amsdutx amsdurx shortgi wme roaming MANUAL > > I get a maximum of 900 KB/s of throughput (both in/out, approximated by > copying a large file using scp), within the network and to the outside > world. Running SuSE Linux on the notebook allows me to easily saturate my > uplink at > 3MB/s, didn't then further check within the network. I get no > log messages on FBSD from iwn and I am not located in a particularly noisy > neighborhood. > > The only performance issue I can find with this chip is one old report on > Ubuntu (http://ubuntuforums.org/showthread.php?t=1949571), where the 11n > seemed to be the culprit in the driver/firmware. Could this be an issue for > us as well (firmware problem?)? > > As my workhorse is FreeBSD, I'd love to fix this issue. How can I further > debug this issue and/or provide more data? I know that the status of iwn in > FBSD is difficult ATM but maybe there is hope? > > Best > > Johannes > _______________________________________________ > firstname.lastname@example.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-wireless > To unsubscribe, send any mail to "freebsd-wireless-unsubscr...@freebsd.org" _______________________________________________ email@example.com mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-wireless To unsubscribe, send any mail to "freebsd-wireless-unsubscr...@freebsd.org"