Would some one know why SOF/EOF of Fiber Channel frame is 4 bytes?
Thanks Walters
FiberChannel SOF
Oct 06, 2007
2 Replies
Pretty much everything in FC is in multiples of 4 bytes. I guess they were considering the performance on 32 bit platforms when they designed the protocol.
This wastes a little bit of bandwidth on the line, but it does make the implementation easier.
Nony.
As I understand it:
1st byte - always K28.5- - ordered set delimiter & character sync 2nd byte - function code - differentiate SOF/R_RDY/etc types 3rd byte - Straighten out disparity to RD+ 4th byte - Reverses disparity to RD-This is not based on any particular source, only my observations, so I could be completely wrong.
ken
Walters wrote:
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