Re: Hari and train-up sequences
JR,
As a network architect and implementor, I have found that AN used for link speed
and duplex is the first thing that gets turned off when there is a problem with
initiating a link. Often turning AN off and manually setting the link speed and
duplex fixes the problem. This happens even between different units from the
same vendor. I don't know why this works out the way that it does, it simply
does. AN is a great idea. Sometimes it works very well, sometimes it does
not. Beyond simple link initialization for the fixed full duplex and fixed link
speed of a 10gb LAN or WAN PHY I do not think that AN should be considered for
P802.3ae.
Thank you,
Roy Bynum
JR Rivers wrote:
> If it didn't work, then it may not have been specified correctly. I
> presume that most people were able to get 8b10b coding to work. I would
> imagine that they also got other components of the autonegotiation process
> (like link speed, duplex, etc) to work. If I'm correct, then it seems that
> the mechanism isn't flawed, but rather its use :-)
>
> JR
>