G.709
ITU-T Recommendation G.709 "Interfaces for the Optical Transport Network (OTN)" describes a means of communicating data over an optical network. It is a standardized method for transparent transport of services over optical wavelengths in DWDM systems. It is also known as Optical Transport Hierarchy (OTH) standard.
The G.709 OTUk signal is positioned as a server layer signal for various client signals, e.g. SDH/SONET, ATM, IP, Ethernet, Fibre Channel and OTN ODUk (where k=0, 1, 2, 2e, 3, 3e2, 4 or flex). Work on support for InfiniBand and Common Public Radio Interface client signals is currently in progress.
The frame structure defined in G.709 is constructed of 4 areas:
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Fabrica
by: Ataque 77Nuestro día va a llegar, tendremos nuestra vez
no es pedir de más, quiero justicia...
Quiero trabajar en paz no es mucho lo que deseo
yo quiero trabajo honesto, en vez de esclavitud
Debe haber algún lugar donde el más fuerte, no te quiera
esclavizar... si estás sin chance
por qué tanta indiferencia se ha templado a hierro
y fuego? quién cuida las puertas de las fábricas?
el cielo era azul, más ahora es ceniza si
lo que era verde aquí ya no existe más
quién me hiciera acreditar, que ya acontece nada?
de tanto jugar con fuego, que venga el fuego ya...
ese aire dejó mi vista cansada.. y nada más.
y nada más...