Hi Carsten,
On Jun 10, 2009, at 9:34 AM, Carsten Bormann wrote:
The whiteboard can also be used for NUD across the whole LoWPAN,
A very slow NUD.
Note that the role of NUD is pretty much fulfilled by 802.15.4 link-
layer ACKs in a LoWPAN.
Only partially, the role of NUD is really to verify reachability at L3.
There are no addresses being doled out.
Only a little bit :-) (16-bit short addresses.) But the node keeps
the state and refreshes regularly.
Agree. This is not terribly different to DHCP leases in my mind.
When an ER reboots that tends to forget the whiteboard, it might
hand out an address that is in use by another node before that
happens to refresh.
And "hand out an address" includes both EUI-64 and 16-bit short
addresses.
--
Jonathan Hui
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