Re: [Ietf-hub-bangalore] IP hop by hop routing with TE
Dhruv Dhody <dhruv.ietf@gmail.com> Sat, 07 May 2016 04:54 UTC
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Date: Sat, 07 May 2016 10:24:14 +0530
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From: Dhruv Dhody <dhruv.ietf@gmail.com>
To: sujay gupta <sujay.ietf@gmail.com>
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Subject: Re: [Ietf-hub-bangalore] IP hop by hop routing with TE
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Hi Sujay, Currently we are working on ONOS G release to have CSPF and PCE built in. But you do need to figure out which southbound to use? Can OF carry Ipv6-SR header? Regards, Dhruv On Sat, May 7, 2016 at 4:16 AM, sujay gupta <sujay.ietf@gmail.com> wrote: > Hi Dhruv, > > Good idea on using SR, but which PCE controller has inbuilt application > for constraint based routing? > > Regards. > -Sujay > > > > On Fri, May 6, 2016 at 7:08 AM, Dhruv Dhody <dhruv.ietf@gmail.com> wrote: > >> Hi Sujay, >> >> On Fri, May 6, 2016 at 6:56 PM, sujay gupta <sujay.ietf@gmail.com> wrote: >> >>> HI Dhruv >>> >>> Thanks for the link it is a good introduction and relevant details on >>> the TE. >>> >>> So when you say PCE works currently with MPLS, I would typically need a >>> controller (PCEP controller) with a TE database and BGP-LS >>> for feeding the information, right? >>> >> >> Yes! >> >> >> >>> >>> Which comes to the next question after PCEP controller has the TED, is >>> running a CSPF path a part of the PCEP role, or an application has to be >>> build over it? >>> >> >> Both option exist. For in case of ODL, the application decides the path, >> in some controller the path computation algorithm is built in. >> >> >> >>> >>> My use case is a single IGP domain requiring light-weight TE. >>> >>> Hence my choice would be a constraint based source routing mechanism. >>> The intelligence for which can be calculated using OSPF-TE or ISIS-TE, but >>> the question >>> remains is how do set up the transport path without MPLS. >>> >> >> The protocol "PCEP" might not help you, but what if after computing the >> path you use openflow to set the "flow" (in MPLS we would call that LSP) on >> each node. >> >> Another option would be SR with IPv6 in data plane. >> >> and then there is this - >> https://tools.ietf.org/html/draft-ietf-isis-pcr-05 and >> http://www.ieee802.org/1/pages/802.1ca.html >> >> Hope this helps! >> >> Regards, >> Dhruv >> >> >> >>> Regards, >>> -Sujay >>> >>> >>> >>> >>> >>> On Thu, May 5, 2016 at 5:14 AM, Dhruv Dhody <dhruv.ietf@gmail.com> >>> wrote: >>> >>>> Hi Sujay, >>>> >>>> PCE *currently* works well with MPLS (RSVP-TE signaling or Segement >>>> Routing without signalling). >>>> >>>> If no MPLS, checkout https://datatracker.ietf.org/doc/rfc3272/ which >>>> might give you some ideas. >>>> >>>> Regards, >>>> Dhruv >>>> >>>> On Thu, May 5, 2016 at 5:37 AM, sujay gupta <sujay.ietf@gmail.com> >>>> wrote: >>>> >>>>> Hi Group >>>>> >>>>> >>>>> I am trying to do a hop by hop IP routing with guaranteed/reserved >>>>> bandwidth for a certain traffic class. >>>>> >>>>> The decision should be dynamic, so i will need some IGP or EGP TE >>>>> extension. >>>>> >>>>> So how can I do this with a central controller? (PCE??) >>>>> And can I do this without a central controller ( equivalent to >>>>> MPLS;RSVP -TE but without MPLS) >>>>> >>>>> Any thoughts? >>>>> >>>>> Regards, >>>>> -Sujay >>>>> >>>>> _______________________________________________ >>>>> Ietf-hub-bangalore mailing list >>>>> Ietf-hub-bangalore@ietf.org >>>>> https://www.ietf.org/mailman/listinfo/ietf-hub-bangalore >>>>> >>>>> >>>> >>> >> >
- [Ietf-hub-bangalore] IP hop by hop routing with TE sujay gupta
- Re: [Ietf-hub-bangalore] IP hop by hop routing wi… Dhruv Dhody
- Re: [Ietf-hub-bangalore] IP hop by hop routing wi… sujay gupta
- Re: [Ietf-hub-bangalore] IP hop by hop routing wi… Dhruv Dhody
- Re: [Ietf-hub-bangalore] IP hop by hop routing wi… sujay gupta
- Re: [Ietf-hub-bangalore] IP hop by hop routing wi… Dhruv Dhody
- Re: [Ietf-hub-bangalore] IP hop by hop routing wi… sujay gupta