Hi Jonathan, I just re-read the draft I had written about 3 years ago and tried to figure out things we could further add to your draft.
Do you have any diameter in the RPL network? If so there are 2 questions: 1. Is 255 a good enough value? With your draft we can allow only a maximum of 255 intermediae nodes. 2. If we think a smaller value like 32/ 64 would be good enough, we can further constrain the header to allow a maximum number of addresses. Thanks, Vishwas On Sun, May 30, 2010 at 11:45 PM, Jonathan Hui <j...@archrock.com> wrote: > > Vishwas, > > FYI, we currently have two initial 6man drafts that describe mechanisms for > supporting RPL. The concrete concerns about the routing header seem to > apply to the rpl-routing-header draft rather than the rpl-option draft. > > To answer your question, we did intend to address the well-known traffic > amplification issue with the check you suggested. Section 2 already has > initial text specifying that an IPv6 address must not appear more than once > in the routing header. In the next version of the draft, we'll include an > update to Section 3 that verifies the requirement when processing the > header. > > Thanks. > > -- > Jonathan Hui > > On May 30, 2010, at 11:18 PM, Vishwas Manral wrote: > >> Hi Jonathan, >> >> I read your draft. As I have not read RPL I have to say the draft by >> itself was not self contained so was a bit hard to figure out what can >> be done in the RPL option. >> >> After finding the Traffic amplification issues, I had a draft >> http://tools.ietf.org/html/draft-manral-ipv6-rh4-00 which had some >> additional checks that could be required for any new RH header (we had >> named it RH4 too). >> >> Though the scope is limited to LLN with RPL, I was wondering if the >> issues known would not be an issue in such a network. If not so why? >> >> Thanks, >> Vishwas > > -------------------------------------------------------------------- IETF IPv6 working group mailing list ipv6@ietf.org Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6 --------------------------------------------------------------------
