Hi Michael, Thanks for the review, please find comments inline @SB
On 9/25/13 6:28 PM, "Michael Richardson" <[email protected]> wrote: > >I think that this draft is useful land should be adopted. > >I think that application writers will be much happier asking for prefix >colours than properties, if there is a clear set of default colours. >I am concerned that there is an attempt to be too indirect, the way that >DiffServ tried with DSCP, and yet nearly only code point is really >supported >for EF on real networks, so the point where application writers tend to >embed it, at least at the documentation layer. > >section 3.3 talks about: > > Once an application has determined the appropriate property **and** >color > for its use it has to communicate with the network stack to select > >and I thought up to this point that one could select by colour, or by >property. [SB] you are right about colour OR property for selection. Will fix the wording in the draft. > While it's true that the host interface is host specific, for this >to work, someone needs to publish a reference implementation for >Android/Java >and Linux/C/Python... [SB] There is an implementation for Android Section A.1.5 draft-lepape-6man-prefix-metadata-00#appendix-A.1.5 has the details. > >Suggesting three different userspace/kernel methods isn't going to help >get >applications written. APIs matter here. Being able to set a default >colour >for a process (and it's children!!) is probably the initial killer >interface, >because I can now do something like: > low-latency-colour skype & >where the command "low-latency-colour" sets the default colour and then >invokes another command. > >3.5 I believe that local scoping of prefix color is going to be useless. >The prefix colour is a proxy for which ISP/servie, so making it ISP scoped >makes it useless for the application. > >Instead, I suggest that the prefix colour either be a global IANA registry >(DS PHB may already be the right thing...),or make it a uuid. Then >T-mobile >can embed their network prefix colour for video in the video player app >that >they want to shove into my phone... [SB] Yes, UUID to attach e.g. ISP's enterprise ID or using access network identifier information along with the locally scoped colour for selection would provide flexibility while a global registry may be suitable for the properties. Thanks, Shwetha > >-- >Michael Richardson <[email protected]>, Sandelman Software Works > > >_______________________________________________ >homenet mailing list >[email protected] >https://www.ietf.org/mailman/listinfo/homenet -------------------------------------------------------------------- IETF IPv6 working group mailing list [email protected] Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6 --------------------------------------------------------------------
