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Re: Interface reality check




Rich,

If you will re-examine the objectives, you will discover that
Auto-Negotiation is not supported by P802.3ae.

Thank you,
Roy Bynum

----- Original Message -----
From: Rich Taborek <rtaborek@earthlink.net>
To: HSSG <stds-802-3-hssg@ieee.org>
Sent: Sunday, April 02, 2000 11:47 PM
Subject: Re: Interface reality check


>
> Roy,
>
> In GbE, Remote Fault and Break Link are both signaled during
Auto-Negotiation
> (AN). For 1000BASE-X GbE, AN is a management function that executes
mutually
> exclusively with normal PCS functions. AN is specified in 1000BASE-X
clause 37
> while the PCS is specified in clause 36. GbE AN control input is from
> management, not the RS. GbE AN functions "take over" the GbE PCS for use
as an
> AN transport. The GbE MAC, RS, management, AN and PCS functions are
typically
> integrated.
>
> My RS proposal simply has the RS receiver treating all control codes not
> specified by 802.3ae to have special meaning as Idle. This rule would
apply to
> every RS receiver.
>
> Best Regards,
> Rich
>
> --
>
> Roy Bynum wrote:
> >
> > Rich,
> >
> > Please explain.  The "remote fault" and "break link" indicators that are
in
> > GbE, are these transmitted from the RS to the PCS as part of the RS
> > information, or are these transmitted from the PCS to the RS during the
> > "non-data" periods of received data?
> >
> > I am confused.  When you say that the RS translates the 8B10B encoding
idle
> > characters into an /I/, are you referring to it happening within the
same
> > box or are you saying this will happen at the remote box that does not
have
> > XAUI?
> >
> > Thank you,
> > Roy Bynum
>
> -------------------------------------------------------
> Richard Taborek Sr.                 Phone: 408-845-6102
> Chief Technology Officer             Cell: 408-832-3957
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