Re: [mif] FW: I-D Action: draft-ietf-mif-mpvd-arch-03.txt
GangChen <phdgang@gmail.com> Sun, 10 August 2014 07:47 UTC
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Date: Sun, 10 Aug 2014 15:47:21 +0800
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From: GangChen <phdgang@gmail.com>
To: Dmitry Anipko <Dmitry.Anipko@microsoft.com>
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Subject: Re: [mif] FW: I-D Action: draft-ietf-mif-mpvd-arch-03.txt
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Hi Dmitry, Thank you for the feedback. 2014-08-10 11:23 GMT+08:00, Dmitry Anipko <Dmitry.Anipko@microsoft.com>: > Hi Gang, > > for some reason I didn't receive the original email. > > My 2 cents on these questions: PVD architecture, among other things, enables > a) consistent use of networking configuration and, in some cases, b) > improves selection of the networking configuration. I think 1) below is > about selection, while 2) is about consistent use. > > For selection, if multiple PVDs advertise the same DNS suffix, there are 2 > cases: 1.1 all these PVDs are not trusted, 1.2 some of the PVDs are trusted. > In 1.1, IMO the most reasonable minimal behavior would be to generally > ignore the suffix for purposes of the PVD selection, since the information > is not trusted. In 1.2, if there is only one such trusted PVD, then this > information can be meaningfully used in the PVD selection process. If there > is > 1 such trusted PVD, then it is either misconfiguration, or any of these > multiple trusted PVDs can be equally used, as far as selection by the suffix > is concerned, and other factors (cost, speed etc) may be decisive. RFC6731 doesn't carry PVD information. Let's assume int#1 and int#2 on a PVD-aware node receive RDNSS Selection DHCPv6 Option and PVD Container Option respectively. And both are trusted. int#1 receives RDNSS Selection DHCPv6 Option with domain name of example.com int#2 receives PVD-ID named as example.com. As far as trust and suffix are concerned, should it be equally used? > For consistency, I'm not sure I understand the concern: if the specific > route happens to be associated with the PVD, which the host already decided > to use, then that specific route will affect the route lookup process. If > the specific route happens to be in a different PVD, then it will be ignored > (same approach as with multiple default routes). A network provision a PVD-aware node that targeting to 2001::1 should only take int#1. However, the int#2 on the node receives RA carry Route Information Option indicating 2001::1 with high priority. Should the node ignore int#2 and select int#1? Gang > Let me know if this answers your question. > > Thank you, > Dmitry > > > ________________________________________ > From: GangChen <phdgang@gmail.com> > Sent: Friday, August 08, 2014 12:41 AM > To: Dmitry Anipko > Cc: MIF Mailing List > Subject: Re: [mif] FW: I-D Action: draft-ietf-mif-mpvd-arch-03.txt > > Hello Dmitry, > > I posted the questions in other two threads, but didn't get response. > Could you kindly consider following questions into WGLC comments > > Is there any conclusion if PVD rules conflict with RFC6731 and RFC4191? > > Two particular cases are: > > 1) Name resolution > > Let's say, host A receives RDNSS Selection DHCPv6 Option with domain > name of example.com on interface 1. > It also receives PVD-ID of example.com on interface 2. > > If the host A makes query for a.example.com, which interface should be > selected > > 2) next hop > > draft-ietf-mif-mpvd-arch-01 states: > > For each obtained destination > address, the node shall perform a next-hop lookup among routers, > associated with that PVD. > > > BRs > > Gang > > 2014-08-07 9:53 GMT+08:00, Dmitry Anipko <Dmitry.Anipko@microsoft.com>: >> This revision should address the WGLC comments. If there are no additional >> comments, we'll do the language review (thanks Ian for the kind offer), >> and >> I'm following up with authors of the 2 IDs mentioned in the text, which >> have >> expired, for the proper replacements. >> >> -Dmitry >> >> -----Original Message----- >> From: mif [mailto:mif-bounces@ietf.org] On Behalf Of >> internet-drafts@ietf.org >> Sent: Wednesday, August 6, 2014 6:49 PM >> To: i-d-announce@ietf.org >> Cc: mif@ietf.org >> Subject: [mif] I-D Action: draft-ietf-mif-mpvd-arch-03.txt >> >> >> A New Internet-Draft is available from the on-line Internet-Drafts >> directories. >> This draft is a work item of the Multiple Interfaces Working Group of the >> IETF. >> >> Title : Multiple Provisioning Domain Architecture >> Author : Dmitry Anipko >> Filename : draft-ietf-mif-mpvd-arch-03.txt >> Pages : 22 >> Date : 2014-08-06 >> >> Abstract: >> This document is a product of the work of MIF architecture design >> team. It outlines a solution framework for some of the issues, >> experienced by nodes that can be attached to multiple networks. The >> framework defines the notion of a Provisioning Domain (PvD) - a >> consistent set of network configuration information, and PvD-aware >> nodes - nodes which learn PvDs from the attached network(s) and/or >> other sources and manage and use multiple PvDs for connectivity >> separately and consistently. >> >> >> The IETF datatracker status page for this draft is: >> https://datatracker.ietf.org/doc/draft-ietf-mif-mpvd-arch/ >> >> There's also a htmlized version available at: >> http://tools.ietf.org/html/draft-ietf-mif-mpvd-arch-03 >> >> A diff from the previous version is available at: >> http://www.ietf.org/rfcdiff?url2=draft-ietf-mif-mpvd-arch-03 >> >> >> Please note that it may take a couple of minutes from the time of >> submission >> until the htmlized version and diff are available at tools.ietf.org. >> >> Internet-Drafts are also available by anonymous FTP at: >> ftp://ftp.ietf.org/internet-drafts/ >> >> _______________________________________________ >> mif mailing list >> mif@ietf.org >> https://www.ietf.org/mailman/listinfo/mif >> >> _______________________________________________ >> mif mailing list >> mif@ietf.org >> https://www.ietf.org/mailman/listinfo/mif >> >
- [mif] I-D Action: draft-ietf-mif-mpvd-arch-03.txt internet-drafts
- [mif] FW: I-D Action: draft-ietf-mif-mpvd-arch-03… Dmitry Anipko
- Re: [mif] FW: I-D Action: draft-ietf-mif-mpvd-arc… GangChen
- Re: [mif] FW: I-D Action: draft-ietf-mif-mpvd-arc… GangChen
- Re: [mif] FW: I-D Action: draft-ietf-mif-mpvd-arc… Dmitry Anipko
- Re: [mif] FW: I-D Action: draft-ietf-mif-mpvd-arc… Dmitry Anipko