Wireless Access

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Access network design for branch, remote, outdoor, and campus locations with HPE Aruba Networking access points and mobility controllers.
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Phy rate vs Throughput

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  • 1.  Phy rate vs Throughput

    Posted Feb 04, 2016 04:53 PM

    Hi,

    How are the phy rate of the link calculated ? .What is the relaiabilty of phy rate or instead do we need to run a throughput test ? .

    If  phy rate shows of an ac adpter shows 870 Mb , Does it mean it support 2 by 2 spatial streams 

    Thanks



  • 2.  RE: Phy rate vs Throughput

    EMPLOYEE
    Posted Feb 04, 2016 05:13 PM

    Hi, 

     

    The PHY rates are based on the MCS supported. See http://mcsindex.com/ for the complete MCS and the rates. 

     

    Thanks, 

    Rajaguru Vincent 



  • 3.  RE: Phy rate vs Throughput

    Posted Feb 14, 2016 05:44 PM

    Hi,

    If the mcsindex shows 10.5 , is it a valid index ?

    Thanks



  • 4.  RE: Phy rate vs Throughput

    Posted Feb 15, 2016 07:15 AM

    Hi,

     

    As per the mcsindex.com site a valid MCS index will be a whole number. 10.5 is not a valid MSC index value.

     

    Maybe you can post a screenshot of where you're setting this value?

     

    Cheers

    James



  • 5.  RE: Phy rate vs Throughput

    EMPLOYEE
    Posted Feb 15, 2016 09:14 AM
    The phy rate is based on the negotiated supported characteristics of a connection. They can vary based on sender/receiver capability., interference, contention or even distance. In the lab in perfect circumstances, this would represent the negotiated capabilities of the receiver and the sender. In the real world, contention, distance and interference drive this number down. Throughput is typically no more than half of the negotiated phy rate due to the half duplex nature of wireless.