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If you are referring to getting a C2 value for GFP, I think GFP should use the value that has already been requested for SDL (rfc2823 ?) framing protocol. GFP uses SDL-style framing. The C2 value is used by SONET/SDH framers to maintain their state machine and get to frames through frame hunt/delineation, etc. Once frames are delineated, GFP packets (for example) are extracted and passed to other logic blocks for further processing and any SONET/SDH related processing is not relevant/needed any more. This is similar to what is done for POS, ATM, PDH, etc. GFP by itself wouldn't need a separate C2 value, I feel, as it is a packet inside another framing mechanism. I guess the SDL has two C2 values, for the cases of with and without scrambling.
Regards,
Pankaj
Harry Peng wrote:
Mike:
Who is our T1X1 liaison?
My understanding is that ITU is also getting involve with the GFP as well.
In SONET /SDH there is a payload identifier, C2. We need to reserve a identifier number from T1X1 and ITU.Regards,
Harry