Date: Thu, 28 May 2009 00:55:27 +0200 From: Zach Shelby <[email protected]>
A new version of draft-ietf-6lowpan-nd is now available at: http://www.ietf.org/internet-drafts/draft-ietf-6lowpan-nd-03.txt Changes: - Whiteboard is supported by all Edge Routers for option simplicity Zach, While this simplifies the options, I think it might be a net loss in terms of complexity and cost, at least for some networks. In particular, I think that it would be unfortunate if forwarding messages between two LoWPANs required that any router doing such forwarding have a whiteboard. Is this the case? Would it be possible to avoid the need for a whiteboard in a network by only using IPv6 addresses derived from EUI64s? While conflicts are still possible, they are very unlikely (outside of development and testing, where they can happen with some regularity). 802.15.4 16-bit addresses could still be used for link-layer next-hop addresses, as that requires only local, and not global, conflict detection. On a related note, there is some discussion of what happens when a non-Edge-Router reboots (using a lollipop mechanism for TIDs), but I didn't see anything about what happens if an Edge Router reboots. Is the expectation that the whiteboard will be kept in non-volatile storage? -Richard Kelsey _______________________________________________ 6lowpan mailing list [email protected] https://www.ietf.org/mailman/listinfo/6lowpan
