On 01/11/2017 11:35 AM, Christopher wrote: > On Wed, Jan 11, 2017 at 1:01 PM Rick Stevens <ricks@xxxxxxxxxxxxxx > <mailto:ricks@xxxxxxxxxxxxxx>> 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: USEnvironment: 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. It's interesting that your n bitrates show up in the "extended supported rates" rather than the "standard rates". I'm not a wifi guru so I can't interpret a lot of that either. Here's what I have: [root@golem4 ~]# iw dev wlan0 link Connected to 38:2c:4a:a1:0b:d8 (on wlan0) SSID: AD freq: 2437 RX: 18784014 bytes (126013 packets) TX: 56599 bytes (408 packets) signal: -25 dBm tx bitrate: 57.8 MBit/s MCS 5 short GI bss flags: short-preamble short-slot-time dtim period: 3 beacon int: 100 You have new mail in /var/spool/mail/root [root@golem4 ~]# iw dev wlan0 scan dump BSS 38:2c:4a:a1:0b:d8(on wlan0) -- associated TSF: 7695565369786 usec (89d, 01:39:25) freq: 2437 beacon interval: 100 TUs capability: ESS Privacy ShortSlotTime RadioMeasure (0x1411) signal: -25.00 dBm last seen: 71897 ms ago Information elements from Probe Response frame: SSID: AD Supported rates: 1.0* 2.0* 5.5* 11.0* 18.0 24.0 36.0 54.0 DS Parameter set: channel 6 ERP: <no flags> ERP D4.0: <no flags> RSN: * Version: 1 * Group cipher: CCMP * Pairwise ciphers: CCMP * Authentication suites: PSK * Capabilities: 16-PTKSA-RC 1-GTKSA-RC (0x000c) Extended supported rates: 6.0 9.0 12.0 48.0 BSS Load: * station count: 17 * channel utilisation: 55/255 * available admission capacity: 0 [*32us] HT capabilities: Capabilities: 0x19ad RX LDPC HT20 SM Power Save disabled RX HT20 SGI TX STBC RX STBC 1-stream Max AMSDU length: 7935 bytes DSSS/CCK HT40 Maximum RX AMPDU length 65535 bytes (exponent: 0x003) Minimum RX AMPDU time spacing: 4 usec (0x05) HT RX MCS rate indexes supported: 0-23 HT TX MCS rate indexes are undefined HT operation: * primary channel: 6 * secondary channel offset: no secondary * STA channel width: 20 MHz * RIFS: 1 * HT protection: nonmember * non-GF present: 1 * OBSS non-GF present: 1 * dual beacon: 0 * dual CTS protection: 0 * STBC beacon: 0 * L-SIG TXOP Prot: 0 * PCO active: 0 * PCO phase: 0 Overlapping BSS scan params: * passive dwell: 20 TUs * active dwell: 10 TUs * channel width trigger scan interval: 300 s * scan passive total per channel: 200 TUs * scan active total per channel: 20 TUs * BSS width channel transition delay factor: 5 * OBSS Scan Activity Threshold: 0.25 % Extended capabilities: HT Information Exchange Supported, Extended Channel Switching, BSS Transition, 6 WPS: * Version: 1.0 * Wi-Fi Protected Setup State: 2 (Configured) * Response Type: 3 (AP) * UUID: dcd55186-d913-1df1-3a01-d06461bf5d81 * Manufacturer: ASUSTeK Computer Inc. * Model: Wi-Fi Protected Setup Router * Model Number: RT-AC87U * Serial Number: * Primary Device Type: 6-0050f204-1 * Device name: RT-AC87U * Config methods: Display * RF Bands: 0x1 * Unknown TLV (0x1049, 6 bytes): 00 37 2a 00 01 20 WMM: * Parameter version 1 * u-APSD * 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 My link shows a 57.8Mbit transmit rate and my access point (from the "scan dump" shows the n rates in the "supported rates" area. ---------------------------------------------------------------------- - Rick Stevens, Systems Engineer, AllDigital ricks@xxxxxxxxxxxxxx - - AIM/Skype: therps2 ICQ: 226437340 Yahoo: origrps2 - - - - LOOK OUT!!! BEHIND YOU!!! - ---------------------------------------------------------------------- _______________________________________________ users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx
