Hi Peter, et al, I’ve also seen many OSPF PE-CE deployments as well. One question is whether the CE is under the administrative control of the provider or the customer? Note that this was proposed at least once before - http://www.ietf.org/archive/id/draft-shrivastava-ospf-flow-spec-01.txt bit it didn’t gain momentum.
With respect to Hannes’ comment, Les Ginsberg said he sees this as a candidate for the ISIS Generic Information instance (RFC 6823). We could do the same and push it to the OSPF transport instance which has also lost momentum as a draft. We’ve heard from one provider (Eric) who doesn’t think this is useful - any other input? One thing I hope is that no sees this a generic flow-spec distribution mechanism for SDN. The reason being that you really need per peer granularity of advertisement and policy, e.g. BGP. Thanks, Acee On Oct 8, 2014, at 12:16 PM, Peter Psenak <ppse...@cisco.com> wrote: > Hi Eric, > > there are definitely deployments using OSPF as PE-CE. It's typically used for > enterprise customers, that use OSPF as their IGP and use L3 VPN service to > interconnect their sites. > > thanks, > Peter > > On 10/8/14 17:45 , Osborne, Eric wrote: >> I'm not sure this has much value. The vast majority of dynamic PE-CE is >> done with BGP; the little bit that isn't BGP is, in my experience, RIP. I >> don't think I've seen many (any?) OSPF PE-CE deployments. >> >> >> >> >> eric >> >> -----Original Message----- >> From: OSPF [mailto:ospf-boun...@ietf.org] On Behalf Of Youjianjie >> Sent: Tuesday, October 07, 2014 10:11 PM >> To: ospf@ietf.org >> Subject: [OSPF] 转发: New Version Notification for >> draft-liang-ospf-flowspec-extensions-01.txt >> >> Hi all, >> >> This document discusses the use cases that OSPF is used to distribute >> FlowSpec routes. This document also defines a new OSPF FlowSpec Opaque Link >> State Advertisement (LSA) encoding format. >> Your comments are appreciated. >> >> Best Regards, >> Jianjie >> >> -----邮件原件----- >> 发件人: internet-dra...@ietf.org [mailto:internet-dra...@ietf.org] >> 发送时间: 2014年9月28日 10:32 >> 收件人: Youjianjie; Youjianjie; liuweihang; liuweihang >> 主题: New Version Notification for draft-liang-ospf-flowspec-extensions-01.txt >> >> >> A new version of I-D, draft-liang-ospf-flowspec-extensions-01.txt >> has been successfully submitted by Jianjie You and posted to the IETF >> repository. >> >> Name: draft-liang-ospf-flowspec-extensions >> Revision: 01 >> Title: OSPF Extensions for Flow Specification >> Document date: 2014-09-27 >> Group: Individual Submission >> Pages: 11 >> URL: >> http://www.ietf.org/internet-drafts/draft-liang-ospf-flowspec-extensions-01.txt >> Status: >> https://datatracker.ietf.org/doc/draft-liang-ospf-flowspec-extensions/ >> Htmlized: >> http://tools.ietf.org/html/draft-liang-ospf-flowspec-extensions-01 >> Diff: >> http://www.ietf.org/rfcdiff?url2=draft-liang-ospf-flowspec-extensions-01 >> >> Abstract: >> This document discusses the use cases why OSPF (Open Shortest Path >> First) distributing flow specification (FlowSpec) routes is >> necessary. This document also defines a new OSPF FlowSpec Opaque >> Link State Advertisement (LSA) encoding format that can be used to >> distribute FlowSpec routes. >> >> For the network only deploying IGP (Interior Gateway Protocol) (e.g. >> OSPF), it is expected to extend IGP to distribute FlowSpec routes. >> One advantage is to mitigate the impacts of Denial-of-Service (DoS) >> attacks. >> >> >> >> >> >> 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. >> >> The IETF Secretariat >> >> _______________________________________________ >> OSPF mailing list >> OSPF@ietf.org >> https://www.ietf.org/mailman/listinfo/ospf >> _______________________________________________ >> OSPF mailing list >> OSPF@ietf.org >> https://www.ietf.org/mailman/listinfo/ospf >> > > _______________________________________________ > OSPF mailing list > OSPF@ietf.org > https://www.ietf.org/mailman/listinfo/ospf _______________________________________________ OSPF mailing list OSPF@ietf.org https://www.ietf.org/mailman/listinfo/ospf
