On Wed, Jan 11, 2017 at 1:01 PM Rick Stevens <ri...@alldigital.com> wrote:
> On 01/10/2017 07:30 PM, Chris Murphy wrote: > > [chris@f25h Downloads]$ iperf -c 10.0.0.3 > > ------------------------------------------------------------ > > Client connecting to 10.0.0.3, TCP port 5001 > > TCP window size: 85.0 KByte (default) > > ------------------------------------------------------------ > > [ 3] local 10.0.0.4 port 52272 connected with 10.0.0.3 port 5001 > > [ ID] Interval Transfer Bandwidth > > [ 3] 0.0-10.1 sec 35.4 MBytes 29.5 Mbits/sec > > [chris@f25h Downloads]$ > > > > > > > > [chris@f25s ~]$ iperf -s > > ------------------------------------------------------------ > > Server listening on TCP port 5001 > > TCP window size: 85.3 KByte (default) > > ------------------------------------------------------------ > > [ 4] local 10.0.0.3 port 5001 connected with 10.0.0.4 port 52272 > > [ ID] Interval Transfer Bandwidth > > [ 4] 0.0-10.4 sec 35.4 MBytes 28.5 Mbits/sec > > Yeah, OK, that's pretty sucky. So it does look like it's the driver > or firmware or some setting on the interface that's limiting the speed. > I guess you could try "iw dev wlan0 link" to see what speed it thinks > it's running at and "iw dev wlan0 scan dump" to see more details, but > I don't know what else to try. Are you using any special hardware > drivers (e.g. nVidia binaries, etc.)? They might have an effect. > My output from those looks like: $ iw dev wlp1s0 link Connected to xx:xx:xx:xx:xx:xx (on wlp1s0) SSID: mywifi freq: 2412 RX: 762410485 bytes (555995 packets) TX: 33098952 bytes (236527 packets) signal: -52 dBm tx bitrate: 130.0 MBit/s MCS 15 bss flags: short-preamble short-slot-time dtim period: 1 beacon int: 100 $ iw dev wlp1s0 scan dump BSS xx:xx:xx:xx:xx:xx(on wlp1s0) -- associated TSF: 338136964783 usec (3d, 21:55:36) freq: 2412 beacon interval: 100 TUs capability: ESS Privacy ShortPreamble ShortSlotTime (0x0431) signal: -50.00 dBm last seen: 29084 ms ago Information elements from Probe Response frame: SSID: mywifi Supported rates: 1.0* 2.0* 5.5* 11.0* 6.0 9.0 12.0 18.0 DS Parameter set: channel 1 Power constraint: 0 dB RSN: * Version: 1 * Group cipher: CCMP * Pairwise ciphers: CCMP * Authentication suites: PSK * Capabilities: 1-PTKSA-RC 1-GTKSA-RC (0x0000) WPA: * Version: 1 * Group cipher: CCMP * Pairwise ciphers: CCMP * Authentication suites: PSK ERP: <no flags> Extended supported rates: 24.0 36.0 48.0 54.0 WMM: * Parameter version 1 * BE: CW 15-1023, AIFSN 3 * BK: CW 15-1023, AIFSN 7 * VI: CW 7-15, AIFSN 2, TXOP 3008 usec * VO: CW 3-7, AIFSN 2, TXOP 1504 usec HT capabilities: Capabilities: 0x138c HT20 SM Power Save disabled TX STBC RX STBC 3-streams Max AMSDU length: 3839 bytes DSSS/CCK HT40 Maximum RX AMPDU length 65535 bytes (exponent: 0x003) Minimum RX AMPDU time spacing: 8 usec (0x06) HT RX MCS rate indexes supported: 0-15 HT TX MCS rate indexes are undefined HT operation: * primary channel: 1 * secondary channel offset: no secondary * STA channel width: 20 MHz * RIFS: 1 * HT protection: no * non-GF present: 0 * OBSS non-GF present: 0 * dual beacon: 0 * dual CTS protection: 0 * STBC beacon: 0 * L-SIG TXOP Prot: 0 * PCO active: 0 * PCO phase: 0 Country: US Environment: Indoor/Outdoor Channels [1 - 11] @ 27 dBm This should be 802.11n (only n, no backwards compatibility for b), WPA2-PSK. I'm not quite sure how to interpret the above, to know if anything stands out. -- Christopher
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