How to find a wireless network adapter's speed in Linux?

How to find a wireless adapter's speed in Linux? ethtool does not show the speed of the wireless adapters.

asked Apr 15, 2015 by Eric Z Ma (44,280 points)

1 Answer

Best answer

For finding the configured speed of wireless adpaters in Linux, you can use the iwconfig tool.

iwconfig: configure a wireless network interface

For example, to find the speed of the wireless adapter wlp8s0:

# iwconfig wlp8s0
wlp8s0    IEEE 802.11bgn  ESSID:"Your AP"  
          Mode:Managed  Frequency:2.437 GHz  Access Point: 08:5B:0E:66:DF:27   
          Bit Rate=58.5 Mb/s   Tx-Power=16 dBm   
          Retry short limit:7   RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:off
          Link Quality=65/70  Signal level=-45 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:4  Invalid misc:1084   Missed beacon:0

Here, the "Bit Rate=58.5 Mb/s" shows the speed.

Of course, you need to benchmark to find how the actually speed is. The rate here is the hardware limit.

answered Apr 15, 2015 by Eric Z Ma (44,280 points)

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