[DNA] A comment on draft-pentland-dna-protocol3-00.txt

["Tero Kauppinen (JO/LMF)" <tero.kauppinen@ericsson.com>]

Hi Brett,

Hopefully this has not already been brought up in one of those mails on 
the mailing list. I tried to quickly look through the issues in other 
mails and the eye didn't catch this one.

We were discussing this on the design team mailing list sometime ago, 
but I don't remember what was the conclusion. Anyway, the case when the 
router is not advertising any prefixes, e.g. the case when stateful
autoconfiguration is applied, is not clearly stated in the specification 
how to proceed (i.e. obviously no landmark prefix can be picked, CPL 
list can't be constructed). Or is it enough just to state the following?

6.2.6.3  DNA and Statefully Configured Addresses

...
    signaling.  If, however, a non-DNA RA is received, the host SHOULD
    use the DHCPv6 CONFIRM message as described in RFC 3315 [8] rather
    than wait for additional RAs to perform CPL, since this will reduce
    the amount of time required for the host to confirm whether or not it
    has moved to a new link.


/Tero