Re: [dhcwg] Anyone interested in continuing draft-ietf-dhc-dhcpv6-prefix-pool-opt?
"Leaf Yeh" <leaf.yeh.sdo@gmail.com> Thu, 29 August 2013 09:52 UTC
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From: Leaf Yeh <leaf.yeh.sdo@gmail.com>
To: 'Alexandru Petrescu' <alexandru.petrescu@gmail.com>, dhcwg@ietf.org
References: <52123110.10205@gmail.com> <94C682931C08B048B7A8645303FDC9F36EEDD8B410@PUEXCB1B.nanterre.francetelecom.fr> <5214BF85.8020509@gmail.com> <8166FEF1-0991-4BDF-A35C-6D6E922CF0DD@gmail.com> <94C682931C08B048B7A8645303FDC9F36EEEE4E649@PUEXCB1B.nanterre.francetelecom.fr> <CAKOT5Kr_Ve+9taH_AmhUp1HwHY=ggytVjUuToMf2Wr4oKoozOQ@mail.gmail.com>, <94C682931C08B048B7A8645303FDC9F36EEEE4E6DB@PUEXCB1B.nanterre.francetelecom.fr> <7B81A958-9434-46B6-973A-D4BD7F2C424F@cisco.com> <521755b2.69d4440a.4d0d.ffff8e59@mx.google.com> <5217763C.8010702@gmail.com>
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Date: Thu, 29 Aug 2013 17:52:29 +0800
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Subject: Re: [dhcwg] Anyone interested in continuing draft-ietf-dhc-dhcpv6-prefix-pool-opt?
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Indeed, the draft might need more text on the Problem Statement for the convincing power & easy understanding ... I guess the PS text should focus on the requirement of route aggregation on PE for the customer's PD prefixes and the possible solutions ... Best Regards, Leaf -----Original Message----- From: dhcwg-bounces@ietf.org [mailto:dhcwg-bounces@ietf.org] On Behalf Of Alexandru Petrescu Sent: Friday, August 23, 2013 10:48 PM To: dhcwg@ietf.org Subject: Re: [dhcwg] Anyone interested in continuing draft-ietf-dhc-dhcpv6-prefix-pool-opt? Le 23/08/2013 14:29, Leaf Yeh a écrit : [...] > That sounds a new chapter of this draft. I suspect I will have a > chance to join. :-) LOL :-) What would be the toc of this DHCPv6 Prefix Delegation and Relay Problem Statement? Alex > > > Best Regards, > Leaf > > > > ---------------------------------------------------------------------- > ------ > ------------------------------------------------------------ > From: dhcwg-bounces@ietf.org [mailto:dhcwg-bounces@ietf.org] On Behalf > Of Bernie Volz (volz) > Sent: Friday, August 23, 2013 7:20 PM > To: mohamed.boucadair@orange.com > Cc: Ralph Droms; dhcwg@ietf.org WG > Subject: Re: [dhcwg] Anyone interested in continuing > draft-ietf-dhc-dhcpv6-prefix-pool-opt? > > BTW - I think I may have indicated this before, but does this really > avoid the need for configuration on the router (relay)? How are items > such as the link-address and next hop (dhcp server) addresses > configured (rfc 3315 has a multicast default)? So there is still a > bunch of "manual" configuration required? Admittedly you do say "more > automation" but not really sure that has a lot of value - perhaps we need a Dynamic Router Configuration BOF? > > - Bernie (from iPad) > > On Aug 23, 2013, at 2:15 AM, "mohamed.boucadair@orange.com" > <mohamed.boucadair@orange.com> wrote: > Hi Roberta, > > Yes, as indicated in the document, manual configuration is an option. > but it has its limits too. > > This proposal is a contribution to add more automation to network > configuration without requiring an additional dynamic protocol to > drive how aggregates are built in a router co-located with a > requestor, and therefore interact in a more dynamic fashion with a > routing protocol (e.g., drive route withdrawals, etc.). > > Of course, some routers can offer some features to optimize the size > of routing tables and prevent from injecting (very) specific entries. > But still this behavior is implementation-specific and does not > provide the same aggregation level as the one proposed in this document. > > Unlike implementation-specific behaviors, this proposal is > deterministic since it is fully controlled by the entity which has the > full knowledge of prefix related states and network policies: e.g., > the server has the knowledge of prefix assignment, prefix assignment > policies, prefix aggregates, etc. > > I confirm this option is not a per-customer configuration parameter. > > Cheers, > Med > > > De : Roberta Maglione [mailto:robmgl.ietf@gmail.com] Envoyé : jeudi 22 > août 2013 22:31 À : BOUCADAIR Mohamed IMT/OLN Cc : Ralph Droms; > dhcwg@ietf.org WG Objet : Re: [dhcwg] Anyone interested in continuing > draft-ietf-dhc-dhcpv6-prefix-pool-opt? > > Hello, > Maybe I'm missing something here, but I'm struggling to see the value > added by this new option in terms of route aggregation functionality. > Today with IPv4 if I need to summarize some routes I manually > configure on the router a summary/aggregate route and I announce it > into the routing protocol. Moving to IPv6 you could do the same thing, > I don't quite get what's wrong with that? > You say you would like to have an automatic way to tell the PE to > aggregate the routes, but if I understand correctly the proposal what > you are doing here is only moving the configuration of the summary > route from the PE to the DHCPv6 Server; what do you really save here? > In addition the route aggregation is not a per customer configuration, > it would be per box or per service configuration so why do you want to > add it to customers' profile in DCHPv6 Server? > Thanks > Roberta > > On Thu, Aug 22, 2013 at 9:45 AM, <mohamed.boucadair@orange.com> wrote: > Re-, > > IMHO, draft-ietf-dhc-dhcpv6-agentopt-delegate does not cover the same > objectives as in draft-ietf-dhc-dhcpv6-prefix-pool-opt. > > draft-ietf-dhc-dhcpv6-prefix-pool-opt aims to provide a dynamic means > to trigger route advertisement actions and to control the route > aggregates to be injected using a routing protocol. For example, a > router can be told by the DHCP server to advertise an aggregate even > if not all individual prefixes are assigned to customer located behind > that router. This is a measure that can help in optimizing routing > tables and avoid injecting very specific routes. Snooping the > assignment and then guide the route advertisement actions may not be > lead to the same optimized routing tables, because there will be "holes" that will prevent aggregating routes. > > Having an explicit channel like the one specified in > draft-ietf-dhc-dhcpv6-prefix-pool-opt is superior IMHO. > > Cheers, > Med > > >> -----Message d'origine----- >> De : dhcwg-bounces@ietf.org [mailto:dhcwg-bounces@ietf.org] De la >> part de Ralph Droms Envoyé : jeudi 22 août 2013 14:48 À : Alexandru >> Petrescu Cc : dhcwg@ietf.org WG Objet : Re: [dhcwg] Anyone interested >> in continuing draft-ietf-dhc-dhcpv6- prefix-pool-opt? >> >> >> On Aug 21, 2013, at 9:24 AM 8/21/13, Alexandru Petrescu >> <alexandru.petrescu@gmail.com> wrote: >> >>> Hi, >>> >>> One point I think is essential is the installment of routes in the >>> DHCP Relay upon Prefix Assignment. >>> >>> The base DHCPv6 Prefix Delegation RFC does not stipulate that DHCP >>> must install a route in the DHCP Relay upon delegation. >>> >>> This draft seems to at least assume it, and to describe much more >>> about >>> it: how various parts of assigned prefixes are aggregated and >> communicated. >>> >>> I support it. >> >> After a quick read, draft-ietf-dhc-dhcpv6-agentopt-delegate seems to >> have been aimed at the same problem. If I have that right, it might >> be instructive to review the dhc WG mailing list discussion that lead >> to the abandonment of draft-ietf-dhc-dhcpv6-agentopt-delegate. >> >> - Ralph >> >>> >>> Alex >>> >>> Le 21/08/2013 14:41, mohamed.boucadair@orange.com a écrit : >>>> Hi Tomek, >>>> >>>> I do still think draft-ietf-dhc-dhcpv6-prefix-pool-opt documents a >>>> useful feature in order to have more automation and also control >>>> routes aggregation instead of relying on proprietary behaviors of >>>> each implementation. Of course, part of these objectives can be >>>> achieved if routes are installed manually or use an out of band >>>> mechanism to enforce routing aggregation policies. Still, the >>>> proposal in draft-ietf-dhc-dhcpv6-prefix-pool-opt is superior >>>> because the DHCP server has the knowledge of the prefix >>>> assignments; and therefore routes can be triggered with dhcpv6 . >>>> >>>> A way to progress with this document is to target the Experimental >>>> track. Based on the experience that will be gained in real >>>> deployments, the status can be revisited if required. >>>> >>>> Cheers, Med >>>> >>>>> -----Message d'origine----- De : dhcwg-bounces@ietf.org >>>>> [mailto:dhcwg-bounces@ietf.org] De la part de Tomek Mrugalski >>>>> Envoyé : lundi 19 août 2013 16:52 À : dhcwg Objet : [dhcwg] Anyone >>>>> interested in continuing draft-ietf-dhc-dhcpv6- prefix-pool-opt? >>>>> >>>>> During Berlin meeting chairs asked if there is still interest in >>>>> the prefix-pool-option. There was nobody interested in the work in >>>>> the room. The unanimous consensus in the room was to drop it. I >>>>> just wanted to confirm that on the list. >>>>> >>>>> If you are interested in this work, want to support it and >>>>> participate in it, please let us know by replying to the mailing >>>>> list. Otherwise we'll drop this work and mark that draft as a dead >>>>> WG document. >>>>> >>>>> Please respond within 2 weeks (until Sep. 2nd). >>>>> >>>>> Bernie & Tomek _______________________________________________ >>>>> dhcwg mailing list dhcwg@ietf.org >>>>> https://www.ietf.org/mailman/listinfo/dhcwg >>>> _______________________________________________ dhcwg mailing list >>>> dhcwg@ietf.org https://www.ietf.org/mailman/listinfo/dhcwg >>>> >>>> >>> >>> >>> _______________________________________________ >>> dhcwg mailing list >>> dhcwg@ietf.org >>> https://www.ietf.org/mailman/listinfo/dhcwg >> >> _______________________________________________ >> dhcwg mailing list >> dhcwg@ietf.org >> https://www.ietf.org/mailman/listinfo/dhcwg > _______________________________________________ > dhcwg mailing list > dhcwg@ietf.org > https://www.ietf.org/mailman/listinfo/dhcwg > > _______________________________________________ > dhcwg mailing list > dhcwg@ietf.org > https://www.ietf.org/mailman/listinfo/dhcwg > > _______________________________________________ > dhcwg mailing list > dhcwg@ietf.org > https://www.ietf.org/mailman/listinfo/dhcwg > > _______________________________________________ dhcwg mailing list dhcwg@ietf.org https://www.ietf.org/mailman/listinfo/dhcwg
- [dhcwg] Anyone interested in continuing draft-iet… Tomek Mrugalski
- Re: [dhcwg] Anyone interested in continuing draft… Leaf Yeh
- Re: [dhcwg] Anyone interested in continuing draft… mohamed.boucadair
- Re: [dhcwg] Anyone interested in continuing draft… Alexandru Petrescu
- Re: [dhcwg] Anyone interested in continuing draft… Tomek Mrugalski
- Re: [dhcwg] Anyone interested in continuing draft… mohamed.boucadair
- Re: [dhcwg] Anyone interested in continuing draft… Ted Lemon
- Re: [dhcwg] Anyone interested in continuing draft… Ted Lemon
- Re: [dhcwg] Anyone interested in continuing draft… Behcet Sarikaya
- Re: [dhcwg] Anyone interested in continuing draft… Ted Lemon
- Re: [dhcwg] Anyone interested in continuing draft… Alexandru Petrescu
- Re: [dhcwg] Anyone interested in continuing draft… Leaf Yeh
- Re: [dhcwg] Anyone interested in continuing draft… Sten Carlsen
- Re: [dhcwg] Anyone interested in continuing draft… Alexandru Petrescu
- Re: [dhcwg] Anyone interested in continuing draft… Alexandru Petrescu
- Re: [dhcwg] Anyone interested in continuing draft… Ole Troan
- Re: [dhcwg] Anyone interested in continuing draft… Jean-Francois.TremblayING
- Re: [dhcwg] Anyone interested in continuing draft… Sten Carlsen
- Re: [dhcwg] Anyone interested in continuing draft… Sten Carlsen
- Re: [dhcwg] Anyone interested in continuing draft… Ralph Droms
- Re: [dhcwg] Anyone interested in continuing draft… Bernie Volz (volz)
- Re: [dhcwg] Anyone interested in continuing draft… Leaf Yeh
- Re: [dhcwg] Anyone interested in continuing draft… Bernie Volz (volz)
- Re: [dhcwg] Anyone interested in continuing draft… mohamed.boucadair
- Re: [dhcwg] Anyone interested in continuing draft… Sten Carlsen
- Re: [dhcwg] Anyone interested in continuing draft… Leaf Yeh
- Re: [dhcwg] Anyone interested in continuing draft… Leaf Yeh
- Re: [dhcwg] Anyone interested in continuing draft… Ted Lemon
- Re: [dhcwg] Anyone interested in continuing draft… Leaf Yeh
- Re: [dhcwg] Anyone interested in continuing draft… Roberta Maglione
- Re: [dhcwg] Anyone interested in continuing draft… mohamed.boucadair
- Re: [dhcwg] Anyone interested in continuing draft… Leaf Yeh
- Re: [dhcwg] Anyone interested in continuing draft… Bernie Volz (volz)
- Re: [dhcwg] Anyone interested in continuing draft… Ole Troan
- Re: [dhcwg] Anyone interested in continuing draft… Bernie Volz (volz)
- Re: [dhcwg] Anyone interested in continuing draft… Ole Troan
- Re: [dhcwg] Anyone interested in continuing draft… mohamed.boucadair
- Re: [dhcwg] Anyone interested in continuing draft… sthaug
- Re: [dhcwg] Anyone interested in continuing draft… Leaf Yeh
- Re: [dhcwg] Anyone interested in continuing draft… Leaf Yeh
- Re: [dhcwg] Anyone interested in continuing draft… Alexandru Petrescu
- Re: [dhcwg] Anyone interested in continuing draft… Roberta Maglione
- Re: [dhcwg] Anyone interested in continuing draft… Leaf Yeh
- Re: [dhcwg] Anyone interested in continuing draft… Roberta Maglione
- Re: [dhcwg] Anyone interested in continuing draft… mohamed.boucadair
- Re: [dhcwg] Anyone interested in continuing draft… Leaf Yeh
- Re: [dhcwg] Anyone interested in continuing draft… Ralph Droms
- Re: [dhcwg] Anyone interested in continuing draft… Bernie Volz (volz)
- Re: [dhcwg] Anyone interested in continuing draft… Leaf Yeh
- Re: [dhcwg] Anyone interested in continuing draft… Leaf Yeh
- Re: [dhcwg] Anyone interested in continuing draft… Alexandru Petrescu
- Re: [dhcwg] Anyone interested in continuing draft… Leaf Yeh
- Re: [dhcwg] Anyone interested in continuing draft… Tomek Mrugalski
- [dhcwg] Announcing draft-petrescu-relay-route-pd-… Alexandru Petrescu