Hi Dr.Lee and Dr. Bernstein
You update a new RWA path request/reply in your presentation about
draft-lee-pce-wson-impairments-00.txt
The PCReq Message MAY include some specific measure of optical signal
quality to which all feasible paths should conform:
The BER limit
Q factor
OSNR + Margin
PMD
I think the BER limit is composed of required BER value (determined by
signal's modulation type )+ OSNR+PMD+margin, and Q factor is equivalent to
BER.
So the four items listed above should not be in parallel, what do you
think?
Another thing needs to be taken care is that the BER value, is it
pre-FEC/ after-FEC or should be both included?
If the LSP across some opaque NE (e.g. regenerator/OEO/wavelength
converter ), then BER value of LSP consists of several segments. And in
this situation,
the reply message should return the maximum BER value or every segment's?
B.R.
:)
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