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  • Why 15m and 24 hours PM counters for Telecommunication product inte

    From Ahmed Mustafa@21:1/5 to Mapyourtech on Thu May 3 05:23:25 2018
    On Friday, February 7, 2014 at 4:32:56 PM UTC+4, Mapyourtech wrote:
    Hi,

    Could anybody explain the reason behind choosing 15 min and 24 hours as PM counter parameters. Why not 12 minutes or 12 hrs?

    Need to understand theory and concept behind it.

    e.g suppose it is excepted bit error is occurring at 10^-9 , how long time we have to wait to see the errors ? consider that we are testing 2Mb/s , now 10000000/2048000= 488 seconds = approx. 8 mins , and you can imagine that different link capacity with
    different BER threshold .

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  • From Huub van Helvoort@21:1/5 to All on Thu May 3 20:41:34 2018
    Hello Ahmed,

    You ask:

    e.g suppose it is excepted bit error is occurring at 10^-9 ,
    how long time we have to wait to see the errors ? consider
    that we are testing 2Mb/s , now 10000000/2048000= 488 seconds
    = approx. 8 mins , and you can imagine that different link
    capacity with different BER threshold .

    Please read ITU-T recommendation section 6.2.3.1.1.

    Best regards, Huub.


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  • From Ahmed Mustafa@21:1/5 to Huub van Helvoort on Thu May 3 21:53:47 2018
    On Thursday, May 3, 2018 at 10:41:35 PM UTC+4, Huub van Helvoort wrote:
    Hello Ahmed,

    You ask:

    e.g suppose it is excepted bit error is occurring at 10^-9 ,
    how long time we have to wait to see the errors ? consider
    that we are testing 2Mb/s , now 10000000/2048000= 488 seconds
    = approx. 8 mins , and you can imagine that different link
    capacity with different BER threshold .

    Please read ITU-T recommendation section 6.2.3.1.1.

    Best regards, Huub.


    --
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    http://www.van-helvoort.eu/ ================================================================
    Always remember that you are unique...just like everyone else...

    Hellow Mr. Huub,
    I am trying to explain why 15 mins 24hrs chosen as PM counter, I think this is an optimum time to see the errors as I wrote above, right?

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  • From Huub van Helvoort@21:1/5 to You on Fri May 4 11:35:54 2018
    Hello Ahmed,

    You replied:

    On Thursday, May 3, 2018 at 10:41:35 PM UTC+4, Huub van Helvoort wrote:
    Hello Ahmed,

    You ask:

    e.g suppose it is excepted bit error is occurring at 10^-9 ,
    how long time we have to wait to see the errors ? consider
    that we are testing 2Mb/s , now 10000000/2048000= 488 seconds
    = approx. 8 mins , and you can imagine that different link
    capacity with different BER threshold .

    Please read ITU-T recommendation section 6.2.3.1.1.

    Best regards, Huub.


    I am trying to explain why 15 mins 24hrs chosen as PM counter,
    I think this is an optimum time to see the errors as I wrote above,
    right?

    The bit error rate BER is monitored in order to determine excessive
    or degraded service. And consequent actions, like protection
    switching.

    With the BER the errored seconds ES, severely errored seconds SES
    and unavailable time UAV are counted.

    The 15 minute and 24 hour bins are for SLA verification and
    collect the ES, SES and UAV.
    Please read ITU-T recommendation G.7710 section 10.1.3.

    Best regards, Huub.

    --
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    http://www.van-helvoort.eu/ ================================================================
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