Re: [Lsr] New Version Notification for draft-bonica-lsr-ip-flexalgo-00.txt

[Jia Chen <[e-mail]>]

Not sure whether the use case that the underlay network and the overlay
network that belong to two different administrations is within this scope
?  or has it already been covered by some  other draft or RFCs? Assuming
there are multiple underlay paths from A to B. Overlay would like to
influence underlay path selections. How the best route can be selected, how
the traffic can be forwarded (for example, overlay is IPSec traffic) ?

Jay

On Tue, Sep 29, 2020 at 7:05 AM <[e-mail]> wrote:

>
> Ron,
>
> This is nice. It makes it clear that constraint based path computation
> need not have MPLS overhead
> for those that don’t want it.
>
> One thing that you don’t talk about is how this gets used, tho that may be
> blindingly obvious: you’ll need
> all nodes placing their prefixes in the RIB/FIB, where it will need to be
> selected over other path computation
> for the same prefixes.  This somewhat precludes the possibility of a given
> prefix being useful in multiple
> flex-algos.
>
> More text on application would be most welcome, just to ensure that we’re
> on the same page.
>
> Tony
>
>
> > On Sep 29, 2020, at 6:37 AM, Ron Bonica <rbonica=
> [e-mail]> wrote:
> >
> >
> > Please review and comment
> >
> >                                       Ron
> >
> >
> >
> > Juniper Business Use Only
> >
> >> -----Original Message-----
> >> From: [e-mail] <[e-mail]>
> >> Sent: Tuesday, September 29, 2020 9:36 AM
> >> To: Parag Kaneriya <[e-mail]>; Shraddha Hegde
> >> <[e-mail]>; Ron Bonica <[e-mail]>; Rajesh M
> >> <[e-mail]>; William Britto A J <[e-mail]>
> >> Subject: New Version Notification for
> draft-bonica-lsr-ip-flexalgo-00.txt
> >>
> >> [External Email. Be cautious of content]
> >>
> >>
> >> A new version of I-D, draft-bonica-lsr-ip-flexalgo-00.txt
> >> has been successfully submitted by Ron Bonica and posted to the IETF
> >> repository.
> >>
> >> Name:           draft-bonica-lsr-ip-flexalgo
> >> Revision:       00
> >> Title:          IGP Flexible Algorithms (Flexalgo) In IP Networks
> >> Document date:  2020-09-29
> >> Group:          Individual Submission
> >> Pages:          14
> >> URL:
> https://urldefense.com/v3/__https://www.ietf.org/id/draft-bonica-
> >> lsr-ip-flexalgo-00.txt__;!!NEt6yMaO-gk!X7PVDP-
> >> FnUA0oCcZMw3Qde6in0C72hu_9hOZ53kPspIarR8fNDyU9Vck80Zbjoij$
> >> Status:
> >>
> https://urldefense.com/v3/__https://datatracker.ietf.org/doc/draft-bonica-lsr-
> >> ip-flexalgo/__;!!NEt6yMaO-gk!X7PVDP-
> >> FnUA0oCcZMw3Qde6in0C72hu_9hOZ53kPspIarR8fNDyU9Vck8x7e5ZqI$
> >> Htmlized:
> >>
> https://urldefense.com/v3/__https://datatracker.ietf.org/doc/html/draft-
> >> bonica-lsr-ip-flexalgo__;!!NEt6yMaO-gk!X7PVDP-
> >> FnUA0oCcZMw3Qde6in0C72hu_9hOZ53kPspIarR8fNDyU9Vck82w_6CyU$
> >> Htmlized:
> https://urldefense.com/v3/__https://tools.ietf.org/html/draft-
> >> bonica-lsr-ip-flexalgo-00__;!!NEt6yMaO-gk!X7PVDP-
> >> FnUA0oCcZMw3Qde6in0C72hu_9hOZ53kPspIarR8fNDyU9Vck81_QrJ_p$
> >>
> >>
> >> Abstract:
> >>   An IGP Flexible Algorithm computes a constraint-based path and maps
> >>   that path to an identifier.  As currently defined, Flexalgo can only
> >>   map the paths that it computes to Segment Routing (SR) identifiers.
> >>   Therefore, Flexalgo cannot be deployed in the absence of SR.
> >>
> >>   This document extends Flexalgo, so that it can map the paths that it
> >>   computes to IP addresses.  This allows Flexalgo to be deployed in any
> >>   IP network, even in the absence of SR.
> >>
> >>
> >>
> >>
> >> 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
> >>
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