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  • GFP

    From hmn.fattal@gmail.com@21:1/5 to All on Mon Jun 12 01:57:22 2017
    Hi,
    Could anyone help me understand the GFP protocol? I don't seem to find a good explanation on the web. What is the difference between GFP and HDLC? Also, what is the difference between the GFP two modes (GFP-F and GFP-T)?

    Thank you,
    Hadar

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  • From Huub van Helvoort@21:1/5 to You on Mon Jun 12 17:30:03 2017
    Hello Hadar,

    You wrote:

    Could anyone help me understand the GFP protocol?
    I don't seem to find a good explanation on the web.

    GFP is described in ITU-T recommendation G.7041.
    You can download it for free:
    http://www.itu.int/rec/T-REC-G.7041-201608-I

    What is the difference between GFP and HDLC?

    GFP is byte-oriented HDLC is bit-oriented.
    GFP is used to transport asynchronous signals over a
    synchronous network like SDH and OTN.
    HDLC is mainly used in asynchronous applications.

    Also, what is the difference between the GFP two modes (GFP-F and GFP-T)?

    That is explained in G.7041.
    In short: GFP-F encapsulates frames (or packets) while GFP-T
    encapsulates code-words.

    Thank you,

    You're welcome.
    Best regards, Huub.


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