From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mike Frysinger Date: Fri, 3 Feb 2012 14:33:49 -0500 Subject: [U-Boot] [PATCH 00/28] Add link-local addressing support In-Reply-To: <4F2C090A.6010101@denx.de> References: <1327020811-1538-1-git-send-email-joe.hershberger@ni.com> <201202030634.06229.vapier@gentoo.org> <4F2C090A.6010101@denx.de> Message-ID: <201202031433.50998.vapier@gentoo.org> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de 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 -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 836 bytes Desc: This is a digitally signed message part. URL: