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  • Client available data rates of SDH

    From najambutt143@gmail.com@21:1/5 to All on Tue Jun 25 08:26:36 2019
    Hello Everyone!

    Can anyone tell that what is the data rates of VC-4,VC-3,VC-12 actually available to client in case of Ethernet over SDH (EOS). Generally we say STM-1 equals to 155Mbps, VC-3 of 45Mbps, VC-12 of 2.048Mbps but what are the rates at which customer can
    communicate.

    Regards,
    Najam Saleem

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  • From Huub van Helvoort@21:1/5 to All on Wed Jun 26 14:25:00 2019
    Hello Najam,

    You ask:

    Can anyone tell that what is the data rates of VC-4,VC-3,VC-12
    actually available to client in case of Ethernet over SDH (EOS).

    Generally we say STM-1 equals to 155Mbps, VC-3 of 45Mbps
    VC-12 of 2.048Mbps but what are the rates at which customer can communicate.

    Please read ITU-T recommendation G.707 (it is frre to download on
    the ITU-T site).

    Figure 6-1 shows the bandwidth provided bij the payload area in
    each of the VC-n containers.

    Also mapping of different client signals is in clause 10 of the same recommendation.

    In general the bandwidth of the client signal is not determined by
    the payload of a VC-n but for transporting a specific clinet signal
    the appropriate VC-n is selected.
    For Ethernet GFP and LCAS are used to transport client signals most
    efficiently (no wasted bandwidth) see recomentations G.7041 and G.7047.

    Best regards, Huub.


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  • From Najam Saleem@21:1/5 to Huub van Helvoort on Thu Jun 27 03:22:59 2019
    On Wednesday, June 26, 2019 at 5:25:03 PM UTC+5, Huub van Helvoort wrote:
    Hello Najam,

    You ask:

    Can anyone tell that what is the data rates of VC-4,VC-3,VC-12
    actually available to client in case of Ethernet over SDH (EOS).

    Generally we say STM-1 equals to 155Mbps, VC-3 of 45Mbps
    VC-12 of 2.048Mbps but what are the rates at which customer can communicate.

    Please read ITU-T recommendation G.707 (it is frre to download on
    the ITU-T site).

    Figure 6-1 shows the bandwidth provided bij the payload area in
    each of the VC-n containers.

    Also mapping of different client signals is in clause 10 of the same recommendation.

    In general the bandwidth of the client signal is not determined by
    the payload of a VC-n but for transporting a specific clinet signal
    the appropriate VC-n is selected.
    For Ethernet GFP and LCAS are used to transport client signals most efficiently (no wasted bandwidth) see recomentations G.7041 and G.7047.

    Best regards, Huub.


    --
    reply to hhelvooort with 2 'o's ================================================================
    http://www.van-helvoort.eu/ ================================================================
    Always remember that you are unique...just like everyone else...

    Thanks for the kind reply

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