1. 11 draft-pentland-dna-protocol3-00.txt Brett Pentland

2. 2 Agenda  Document description  Open Issues  Consensus call

3. 3 Background  Based on two prior proposals draft-pentland-dna-protocol-01.txt draft-jinchoi-dna-protocol2-01.txt  Only one fast RA scheme  Link Identification schemes merged

4. 4 Fast RA  Taken directly from draft-pentland-dna-protocol- 01.txt Token = AToken = BToken = C Token = S Say that: B XOR S < A XOR S < C XOR S Access Routers Host  B sends an RA immediately  A sends an RA after 20 ms  C sends an RA after 40 ms RS

5. 5 Link Identification  Routers listen for all prefixes on a link In general, all prefixes included in RAs New option for learned prefixes One noted as LinkID prefix MUST be included in RAs  Hosts SHOULD include a landmark in RSs If the landmark is on the link, routers may send an abbreviated RA containing only the landmark If the landmark is not on the link or there’s no landmark routers send a Complete RA  Unsolicited RAs MAY carry a subset of prefixes but MUST include the LinkID prefix

6. 6 Link Identification B AA BDC ARs APs Host A,B DC RA(C)RA(D) RS(A?) RA(A)RA(A,B) RA(C) RA(C,D) RA(A-Yes) RA(A-No,C,D) RS(A?) C,D

7. 7 Open Issues  Identification based on non-prefix information No supporting emails on mailing list  Explicit link identifiers Some other discussion suggests there is interest  TSLLAO Needed for unicast RS/RA w/o NS/NA Where does this belong?  Delivery of MLD packets during DNA? presentation to follow

8. 8 Open issues (cont)  Packet delivery to/from node during DNA i.e. between the RS and RA What should hosts do with queued packets?  Do we need separate Y/N flags for the Landmark Option? Probably not.

9. 9 Possible LPO format  Use a flag to mark the first prefix as the LinkID  Use a further flag to mark it as “not a prefix”  Need host processing rules 0 1 2 3 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Type | Length |L|P| Reserved | Prefix Len 1 | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |... | Prefix Len N | Padding | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | | + + | | + Prefix 1 + | | + + | | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | | + + | | + Prefix 2 + | | + + | | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ ~... +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | | + + | | + Prefix N + | | + + | | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

10. 10 Where to now?  Is this close enough to the mark to accept as a WG draft?