Re: [802.3ae] ask some questions
Hi,
½²¤å¸t wrote:
>
> Sorry, I will ask some questions, and thanks for your helping.
>
> 1. 10GBASE-W PHYs operate at the STS-192 line rate of 9.95328 Gb/s,
> mapping the encoded
> data stream at a 9.58464 Gb/s payload rate. The number "9.58464" is
> how to calculate?
This number is the data rate of the payload of the SONET frame
vs the data rate of the frame itself.
>
> 2. In the 802.3ae spec, link fault signaling of XGMII functional
> specifications in Clause46,
> what does "UCT" mean in figure46-9 (Link Fault signaling state
> machine, page256)?
Un-Conditional Transfer.
See the editor's note in 49.2.13.1 for references to locations in
the full 802.3 standard for state diagram notations & conventions.
>
> 3.The 10GBASE-R PCS sends tx_data-unit<15:0> to the WIS at a nominal
> rate of 599.04Mhz
> The number "599.04" is how to calculate?
This number comes from 9.58464/16.
Regards,
Ben Brown
Chair Logic Track, P802.3ae
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