need help to calculate physcial data rate of a client based on WLC show client detail output?

[kuan yang]

hi all,

does anyone know how to calculate physcial data rate of a client based on WLC show client detail output?

for example

AP type 802.11bn

Current TxRateSet m11
Data RateSet 6.0,12.0,18.0,24.0,36.0,48.0,54.0

[Sandeep Choudhary]

Check this one, its for 802.11ac but you can see the datasheet of AP and calculate accordingly :

https://www.cisco.com/c/en/us/support/docs/wireless-mobility/wireless-lan-wlan/212892-802-11ac-wireless-throughput-testing-and.html

Regards

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[JPavonM]

If you need some help on how to interpret the output of the Current Rate value for specific clients, take a look into this document: https://community.cisco.com/t5/wireless-mobility-documents/how-to-interpret-802-11ac-datarates/ta-p/3151995

(gbrdcwc01) >grep include "Current Rate" "show clie detail 00:11:22:33:44:aa"
Current Rate..................................... m8 ss1

The later stands for MCS8 and 1 Spatial Stream.

Then you need to add another piece of information to this from AP configuration which is Channel Width in order to know the exact data rate the client is using.

This is another excellent reference:

http://mcsindex.com/

HTH
-Jesus
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[kuan yang]

Hi man,

i still dont get this

WLC1) >grep include "Current Rate" "show client detail 48:f1:7f:ba:cf:54"
Press any key to continue..
Current Rate..................................... m9 ss2

Supported Rates.................................. 6.0,12.0,18.0,24.0,36.0,48.0,

channel width is 40mhz

WLC>show ap channel AP-286f.7f90.18ec

Slot Id ..................................... 0
802.11b/g Current Channel ..................... 1*
Allowed Channel List........................... 1,2,3,4,5,6,7,8,9,10,11

Slot Id ..................................... 1
802.11a Current Channel ....................... (36,40)* 40MHz / Cap 80MHz
Allowed Channel List........................... 36,40,44,48,52,56,60,64,100,
........................... 104,108,112,116,132,136,140,
........................... 149,153,157,161,165

i attached show controller from AP, but i cant workout  from that post how each variables come from:

{ [Bandwidth (As in no. of data subcarriers) x No. of spatial Strms. x Databits per sub-carrier] / Time per ofdm symbol }

i assume it's m9 ss2 is 2 streams of m9 rate, but what m9 is? 

[Sandeep Choudhary]

see the M9 is the table of 2 Spatial stream of 40GHz:

https://www.cisco.com/c/en/us/support/docs/wireless-mobility/wireless-lan-wlan/212892-802-11ac-wireless-throughput-testing-and.html

360 or 400Mb/s!!

Regards

Dont forget to rate helpful posts

[kuan yang]

Hi Sandeep,

how did you get this? is m9 same as VHT MCS index 9? i see current rate can be m11 or m12, and the table doesnt cover?

then 360.0 or 400 x 0.65 = 234/ 240mpbs?

is there a similar table for 2.4ghz?