Wednesday 26 November 2014

Fiber Chanel Layers

FC-Layers:-

1)FC-0: Physical layer
2)FC-1: 8/10 Encoding & Decoding
3)FC-2: Framing & flow control
4)FC-3: Common services
5)FC-4: Upperlayer Protocol Mapping


Physical Layer:-
single mode cables 9 Microns(supports upto to 5 KM)
multimode cables  50 microns or 62.5 microns (support 200 meters)

LC connectors(1/2 inch size,SFP(small form factor pluggable))
SC Connectors(1 inch size , Gbic(gigabit interface card))



FC-1 (8/10 encoding & Decoding )
Transcation word is collection of 4 Characters(40bits).

FC-2: Framing & flow control

SCSI Pay load: 50K
FC Pay load: 2112 bytes
Frame size :2148 bytes


FC-3 layer: common service

FC-4 layer: Upper layer protocol mapping

Mapping SCSI data to SCSI
Mapping IDE  data to IDE

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