Last Call Review of draft-ietf-lisp-ddt-08

Request Review of draft-ietf-lisp-ddt
Requested rev. no specific revision (document currently at 09)
Type Last Call Review
Team Ops Directorate (opsdir)
Deadline 2016-10-25
Requested 2016-10-05
Authors Vince Fuller, Darrel Lewis, Vina Ermagan, Amit Jain, Anton Smirnov
Draft last updated 2016-11-03
Completed reviews Genart Last Call review of -08 by Dale Worley (diff)
Secdir Last Call review of -08 by Radia Perlman (diff)
Opsdir Last Call review of -08 by Linda Dunbar (diff)
Rtgdir Early review of -07 by Ben Niven-Jenkins (diff)
Assignment Reviewer Linda Dunbar
State Completed
Review review-ietf-lisp-ddt-08-opsdir-lc-dunbar-2016-11-03
Reviewed rev. 08 (document currently at 09)
Review result Has Nits
Review completed: 2016-11-03


I have reviewed this document as part of the Operational directorate's ongoing effort to review all IETF documents being processed by the IESG.  These comments were written primarily for the benefit of the operational area directors.

Document editors and WG chairs should treat these comments just like any other last call comments.


I think the messages format and the mechanism for invoking DDT are very well written and very clear.


One question: 


4.1 states 

LISP-DDT does not store actual EID-to-

RLOC mappings; it is, rather, a distributed index that can be used to

find the devices (Map Servers and their registered EIDs) that can be

queried with LISP to obtain those mappings



If mapping in Map Servers are organized in a way that each Map Server maintains EIDs-RLOC mappings for a set of  VPNs or Tenants, then the Ingress node can use the VPN-ID or Tenant ID to find the desired MapServer.

Under this circumstance, do you still need LISP-DDT?


It will be very helpful to have a paragraph describing what kind of environment will need LISP-DDT.


Thanks, Linda Dunbar