At Tue, 27 Oct 2009 06:24:47 -0400, Brian Haberman <br...@innovationslab.net> wrote:
> Title : IPv6 Subnet Model: the Relationship between > Links and Subnet Prefixes > Author(s) : H. Singh, et al. > Filename : draft-ietf-6man-ipv6-subnet-model-05.txt > Pages : 11 > Date : 2009-05-15 > > as a Proposed Standard. Substantive comments and statements of support > for advancing this document should be directed to the mailing list. > Editorial suggestions can be sent to the document editor. This last > call will end on October 14, 2009. I've read the latest version of the draft and support for advancing it. I'm glad this document now focuses on its original issue (and sorry for the process delay if it was due to my objection to previous versions and my slow responses). I have one minor technical comment. In Introduction the draft states: In addition to the Prefix List, individual addresses are on-link if they are the target of a Redirect Message indicating on-link, or the source of a valid Neighbor Solicitation or Neighbor Advertisement message. Note that Redirect Messages can also indicate an address is off-link. Individual address entries can be expired by the Neighbor Unreachability Detection mechanism. Technically, (in my understanding) Redirect Messages do not directly indicate an address is off-link. What they can indicate are: 1. an address is on-link 2. an address is reachable via a different router than the redirect sender normally #2 means the address is off-link, but, again, technically, my understanding is that it doesn't have to be so. Frankly, I don't understand the rationale of this note in this context in the first place (I don't see any problem even if we remove this sentence), but if the intent is to just note the role of redirect is not limited to show an address being on-link, I'd suggest rephrase the "Note that..." sentence as follows: Note that Redirect Messages can also designate an alternate better router to reach an address, in which case the address is normally off-link. --- JINMEI, Tatuya Internet Systems Consortium, Inc. -------------------------------------------------------------------- IETF IPv6 working group mailing list ipv6@ietf.org Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6 --------------------------------------------------------------------
