[U-Boot] [PATCH 00/28] Add link-local addressing support

[Mike Frysinger]

On Friday 03 February 2012 11:19:22 Stefano Babic wrote:
> On 03/02/2012 12:34, Mike Frysinger wrote:
> > On Thursday 26 January 2012 04:21:21 Stefano Babic wrote:
> >> On 26/01/2012 00:40, Joe Hershberger wrote:
> >>>> I have a basic question about your patchset. RFC3927 requires
> >>>> that addresses are continuosly checked to avoid conflicts -
> >>>> this is a strict requirement.
> >>> 
> >>> True.  It cannot be 100% compliant in every use-case.
> >> 
> >> It is important that these limitations are well documented
> >> 
> >>> Any time we are processing NetLoop, we will handle conflict
> >>> correctly.
> >> 
> >> Yes, but NetLoop is running only when there some activity on the
> >> network.
> > 
> > isn't that the only time that matters ?  if we're sitting at the
> > command prompt, then u-boot has the network pretty much shut off
> > (doesn't respond to ARP let alone anything higher).
> 
> This is true, but what does happen with a second / multiple boards on
> the network ? Some of them can steal the same ip address because our
> board does not answer and conflicts are not solved. At least, I am
> expecting that some ip address suddenly changes and that can be some
> inconsistencies in ARP tables.

as soon as the conflict occurs, wouldn't that get detected then ?  u-boot not 
actively responding to a few requests isn't really all that different from the 
packets getting dropped by say a busy hub.
-mike
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