19/06/2022, 18:42
Huawei-Frame Structure of OTN Overhead
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overheads.
PM and TCM subfields:
TTI/BIP-8/BEI/BIAE/BDI: These subfields have the same meaning as those in the SM field of OTUk
overheads but different monitoring levels.
BIP-8: The BIP-8 is computed over the bits in the OPUk (columns 15 to 3824) area of ODUk frame i,
and inserted in the ODUk BIP-8 overhead location in OTUk frame i+2.
STAT: ODUk maintenance signals.
FTFL: used to transmit a 256-byte fault
fa type and fault
fa location (FTFL) message.
EXP: for experimental use and currently used by coherent boards.
RES: reserved.
Copyright © Huawei Technologies Co., Ltd. 2022.
https://info.support.huawei.com/network/ptmngsys/Web/WDMkg/en/40_otn_overhead.html
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