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Will, Seeing as this is specific to a particular PHY
type and might be asymmetric would it not be better dealt with by link training
similar to how a 10GBASE-KR receiver sets a transmit equalizer as defined in
Clause 72? Also if the precoder is useful and has miniscule cost why not just make
it mandatory rather than an option to be negotiated? Arthur. Hi
Arthur, Please
consider adding to AN; -
Precoder. The
RX specifies its preference for either having a 1/(1+D)mod(M) precoder or not
(bypass). This allows RX implementers to choose what is best for them,
either fixed or an a link by link basis. The cost to the TX is miniscule.
This proposal also applies to an NRZ only solution. Thanks, Will
bliss P.S.
looks like I have a problem posting to LISTSERV for now, but wanted to get this
to your attention now |