[[searchwing-pi-datarate]]

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searchwing-pi-datarate [2021/11/17 22:34]
wf68spef 		searchwing-pi-datarate [2021/11/18 15:08] (current)
wf68spef [pi4 config]
Line 523: Line 523:
   * Fritzbox 7520   * Fritzbox 7520
   * CM4 5Ghz Wifi    * CM4 5Ghz Wifi 
-  * Laptop T14 via Ethernet+  * Laptop T14 via Gigabit ​EthernetÌý
 +Ìý
 +Ìý
 +Ìý
 +==== pi4 theoretical speed ====Ìý
 +Ìý
 +from https://​forums.raspberrypi.com/​viewtopic.php?​t=291824&​start=25#​p1768600Ìý
 +Ìý
 +//Fri Nov 27, 2020 2:03 pmÌý
 +The WiFi chip is connected via a 4-bit SDIO link that typically runs at 41.7MHz giving an upper **limit on throughput of ~160Mbs**. In practise you won't get close to that because it is a simplex link (only one direction at a time) and there is overhead in each of the protocol and transport layers. Given that, 112Mbps sounds pretty good. Even though the throughput hasn't increased, being able to properly use the wide channels means that the channel (which is a shared medium) is occupied for a shorter time, leaving more time for other devices.Ìý
 +Ìý
 +//
  
 ==== pi4 config ==== ==== pi4 config ====
Line 546: Line 557:
  txpower 31.00 dBm  txpower 31.00 dBm
  
-pi@testi:~ $ iw phyÌý+pi@testi:~ $ iwconfig wlan0Ìý
-Wiphy phy0Ìý+wlan0     IEEE 802.11  ESSID:"​XXXXXXXXXXXX"  ​Ìý
- max # scan SSIDs: 10Ìý+          Mode:Managed ​ Frequency:5.32 GHz  Access Point: 3C:A6:2F:CB:E0:7E   Ìý
- max scan IEs length: 2048 bytesÌý+          Bit Rate=433.3 Mb/s   Tx-Power=31 dBm   Ìý
- max # sched scan SSIDs: 16Ìý+          ​Retry ​short limit:7   RTS thr:off   ​Fragment thr:offÌý
- max # match sets: 16Ìý+          Power Management:onÌý
- Retry short limit: 7Ìý+          Link Quality=70/70  Signal level=-29 dBm  ​Ìý
- Retry long limit: 4Ìý+          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0Ìý
- Coverage class: 0 (up to 0m)Ìý+          Tx excessive retries:1  ​Invalid misc:0   Missed beacon:0Ìý
- Device supports roaming.Ìý+
- Device supports T-DLS.Ìý+
- Supported Ciphers:Ìý+
- * WEP40 (00-0f-ac:1)Ìý+
- * WEP104 (00-0f-ac:5)Ìý+
- * TKIP (00-0f-ac:2)Ìý+
- * CCMP-128 (00-0f-ac:4)Ìý+
- * CMAC (00-0f-ac:6)Ìý+
- Available Antennas: TX 0 RX 0Ìý+
- Supported interface modes:Ìý+
- * IBSSÌý+
- * managedÌý+
- * APÌý+
- * P2P-clientÌý+
- * P2P-GOÌý+
- * P2P-deviceÌý+
- Band 1:Ìý+
- Capabilities:​ 0x1020Ìý+
- HT20Ìý+
- Static SM Power SaveÌý+
- RX HT20 SGIÌý+
- No RX STBCÌý+
- Max AMSDU length: 3839 bytesÌý+
- DSSS/CCK HT40Ìý+
- Maximum RX AMPDU length 65535 bytes (exponent: 0x003)Ìý+
- Minimum RX AMPDU time spacing: 16 usec (0x07)Ìý+
- HT TX/RX MCS rate indexes supported: 0-7Ìý+
- Bitrates (non-HT):Ìý+
- * 1.0 MbpsÌý+
- * 2.0 Mbps (short preamble supported)Ìý+
- * 5.5 Mbps (short preamble supported)Ìý+
- * 11.0 Mbps (short preamble supported)Ìý+
- * 6.0 MbpsÌý+
- * 9.0 MbpsÌý+
- * 12.0 MbpsÌý+
- * 18.0 MbpsÌý+
- * 24.0 MbpsÌý+
- * 36.0 MbpsÌý+
- * 48.0 MbpsÌý+
- * 54.0 MbpsÌý+
- Frequencies:Ìý+
- * 2412 MHz [1] (20.0 dBm)Ìý+
- * 2417 MHz [2] (20.0 dBm)Ìý+
- * 2422 MHz [3] (20.0 dBm)Ìý+
- * 2427 MHz [4] (20.0 dBm)Ìý+
- * 2432 MHz [5] (20.0 dBm)Ìý+
- * 2437 MHz [6] (20.0 dBm)Ìý+
- * 2442 MHz [7] (20.0 dBm)Ìý+
- * 2447 MHz [8] (20.0 dBm)Ìý+
- * 2452 MHz [9] (20.0 dBm)Ìý+
- * 2457 MHz [10] (20.0 dBm)Ìý+
- * 2462 MHz [11] (20.0 dBm)Ìý+
- * 2467 MHz [12] (20.0 dBm)Ìý+
- * 2472 MHz [13] (20.0 dBm)Ìý+
- * 2484 MHz [14] (disabled)Ìý+
- Band 2:Ìý+
- Capabilities: 0x1062Ìý+
- HT20/​HT40Ìý+
- Static SM Power SaveÌý+
- RX HT20 SGIÌý+
- RX HT40 SGIÌý+
- No RX STBCÌý+
- Max AMSDU length: 3839 bytesÌý+
- DSSS/CCK HT40Ìý+
- Maximum RX AMPDU length 65535 bytes (exponent: 0x003)Ìý+
- Minimum RX AMPDU time spacing: 16 usec (0x07)Ìý+
- HT TX/RX MCS rate indexes supported: 0-7Ìý+
- VHT Capabilities (0x00001020):Ìý+
- Max MPDU length: 3895Ìý+
- Supported Channel Width: neither 160 nor 80+80Ìý+
- short GI (80 MHz)Ìý+
- SU BeamformeeÌý+
- VHT RX MCS set:Ìý+
- 1 streams: MCS 0-9Ìý+
- 2 streams: not supportedÌý+
- 3 streams: not supportedÌý+
- 4 streams: not supportedÌý+
- 5 streams: not supportedÌý+
- 6 streams: not supportedÌý+
- 7 streams: not supportedÌý+
- 8 streams: not supportedÌý+
- VHT RX highest supported: 0 MbpsÌý+
- VHT TX MCS set:Ìý+
- 1 streams: MCS 0-9Ìý+
- 2 streams: not supportedÌý+
- 3 streams: not supportedÌý+
- 4 streams: not supportedÌý+
- 5 streams: not supportedÌý+
- 6 streams: not supportedÌý+
- 7 streams: not supportedÌý+
- 8 streams: not supportedÌý+
- VHT TX highest supported: 0 MbpsÌý+
- Bitrates (non-HT):Ìý+
- * 6.0 MbpsÌý+
- * 9.0 MbpsÌý+
- * 12.0 MbpsÌý+
- * 18.0 MbpsÌý+
- * 24.0 MbpsÌý+
- * 36.0 MbpsÌý+
- * 48.0 MbpsÌý+
- * 54.0 MbpsÌý+
- Frequencies:​Ìý+
- * 5170 MHz [34] (disabled)Ìý+
- * 5180 MHz [36] (20.0 dBm)Ìý+
- * 5190 MHz [38] (disabled)Ìý+
- * 5200 MHz [40] (20.0 dBm)Ìý+
- * 5210 MHz [42] (disabled)Ìý+
- * 5220 MHz [44] (20.0 dBm)Ìý+
- * 5230 MHz [46] (disabled)Ìý+
- * 5240 MHz [48] (20.0 dBm)Ìý+
- * 5260 MHz [52] (20.0 dBm) (no IR, radar detection)Ìý+
- * 5280 MHz [56] (20.0 dBm) (no IR, radar detection)Ìý+
- * 5300 MHz [60] (20.0 dBm) (no IR, radar detection)Ìý+
- * 5320 MHz [64] (20.0 dBm) (no IR, radar detection)Ìý+
- * 5500 MHz [100] (20.0 dBm) (no IR, radar detection)Ìý+
- * 5520 MHz [104] (20.0 dBm) (no IR, radar detection)Ìý+
- * 5540 MHz [108] (20.0 dBm) (no IR, radar detection)Ìý+
- * 5560 MHz [112] (20.0 dBm) (no IR, radar detection)Ìý+
- * 5580 MHz [116] (20.0 dBm) (no IR, radar detection)Ìý+
- * 5600 MHz [120] (20.0 dBm) (no IR, radar detection)Ìý+
- * 5620 MHz [124] (20.0 dBm) (no IR, radar detection)Ìý+
- * 5640 MHz [128] (20.0 dBm) (no IR, radar detection)Ìý+
- * 5660 MHz [132] (20.0 dBm) (no IR, radar detection)Ìý+
- * 5680 MHz [136] (20.0 dBm) (no IR, radar detection)Ìý+
- * 5700 MHz [140] (20.0 dBm) (no IR, radar detection)Ìý+
- * 5720 MHz [144] (disabled)Ìý+
- * 5745 MHz [149] (disabled)Ìý+
- * 5765 MHz [153] (disabled)Ìý+
- * 5785 MHz [157] (disabled)Ìý+
- * 5805 MHz [161] (disabled)Ìý+
- * 5825 MHz [165] (disabled)Ìý+
- Supported commands:Ìý+
- * new_interfaceÌý+
- * set_interfaceÌý+
- * new_keyÌý+
- * start_apÌý+
- * join_ibssÌý+
- * set_pmksaÌý+
- * del_pmksaÌý+
- * flush_pmksaÌý+
- * remain_on_channelÌý+
- * frameÌý+
- * set_wiphy_netnsÌý+
- * set_channelÌý+
- * tdls_operÌý+
- * start_sched_scanÌý+
- * start_p2p_deviceÌý+
- * connectÌý+
- * disconnectÌý+
- * crit_protocol_startÌý+
- * crit_protocol_stopÌý+
- * update_connect_paramsÌý+
- software interface modes (can always be added):Ìý+
- valid interface combinations:​Ìý+
- * #{ managed } <= 1, #{ P2P-device } <= 1, #{ P2P-client, P2P-GO } <= 1,Ìý+
-    total <= 3, #channels <= 2Ìý+
- * #{ managed } <= 1, #{ AP } <= 1, #{ P2P-client } <= 1, #{ P2P-device } <= 1,Ìý+
-    total <= 4, #channels <= 1Ìý+
- Device supports scan flush.Ìý+
- Device supports randomizing MAC-addr in sched scans.Ìý+
- max # scan plans: 1Ìý+
- max scan plan interval: 508Ìý+
- max scan plan iterations: 0Ìý+
- Supported TX frame types:Ìý+
- * managed: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0Ìý+
- * AP: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0Ìý+
- * P2P-client: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0Ìý+
- * P2P-GO: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0Ìý+
- * P2P-device: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0Ìý+
- Supported RX frame types:Ìý+
- * managed: 0x40 0xd0Ìý+
- * AP: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0Ìý+
- * P2P-client: 0x40 0xd0Ìý+
- * P2P-GO: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0Ìý+
- * P2P-device: 0x40 0xd0Ìý+
- Supported extended features:Ìý+
- * [ 4WAY_HANDSHAKE_STA_PSK ]: 4-way handshake with PSK in station modeÌý+
- * [ 4WAY_HANDSHAKE_STA_1X ]: 4-way handshake with 802.1X in station modeÌý+
- * [ DFS_OFFLOAD ]: DFS offload+
 </​code>​ </​code>​
  
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  • Last modified: 2021/11/17 22:34
  • by wf68spef