Re: [Isis-wg] New Version Notification for draft-ginsberg-isis-sbfd-discriminator-00.txt

"Les Ginsberg (ginsberg)" <ginsberg@cisco.com> Thu, 15 May 2014 13:45 UTC

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From: "Les Ginsberg (ginsberg)" <ginsberg@cisco.com>
To: Mach Chen <mach.chen@huawei.com>, Hannes Gredler <hannes@juniper.net>
Thread-Topic: [Isis-wg] New Version Notification for draft-ginsberg-isis-sbfd-discriminator-00.txt
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Date: Thu, 15 May 2014 13:45:08 +0000
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Subject: Re: [Isis-wg] New Version Notification for draft-ginsberg-isis-sbfd-discriminator-00.txt
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Mach -

The issue is what to do with early implementations. In general we encourage people to implement drafts so as to gain experience and identfiy any issues ("we believe in running code..."). If the codepoints change between the time it becomes a WG doc and the time it becomes an RFC this can present issues for early implementations.

Although a more formal early allocation process is needed (and has been recently discussed) - and this draft is not yet a WG doc - which would be necessary to qualify for early allocation - I think specifying a code point is a better strategy.

   Les

> -----Original Message-----
> From: Mach Chen [mailto:mach.chen@huawei.com]
> Sent: Thursday, May 15, 2014 3:10 AM
> To: Les Ginsberg (ginsberg); Hannes Gredler
> Cc: isis-wg@ietf.org list
> Subject: RE: [Isis-wg] New Version Notification for draft-ginsberg-isis-sbfd-
> discriminator-00.txt
> 
> Les and Hannes,
> 
> A better way to avoid conflict is not to specify a particular code in the draft,
> and just using TBD instead.
> 
> Best regards,
> Mach
> 
> > -----Original Message-----
> > From: Isis-wg [mailto:isis-wg-bounces@ietf.org] On Behalf Of Les
> Ginsberg
> > (ginsberg)
> > Sent: Wednesday, May 14, 2014 11:35 PM
> > To: Hannes Gredler
> > Cc: isis-wg@ietf.org list
> > Subject: Re: [Isis-wg] New Version Notification for
> > draft-ginsberg-isis-sbfd-discriminator-00.txt
> >
> > Hannes -
> >
> > You are right - though I was looking at the latest link on the IS-IS WG page.
> :-)
> >
> > Anyways, no problem w resolving the conflict - we will specify a different
> value in
> > the next version.
> >
> >    Les
> >
> >
> > > -----Original Message-----
> > > From: Hannes Gredler [mailto:hannes@juniper.net]
> > > Sent: Wednesday, May 14, 2014 8:23 AM
> > > To: Les Ginsberg (ginsberg)
> > > Cc: isis-wg@ietf.org list
> > > Subject: Re: [Isis-wg] New Version Notification for
> > > draft-ginsberg-isis-sbfd- discriminator-00.txt
> > >
> > > les,
> > >
> > > you are not looking at the latest doc.
> > >
> > > please see
> > > https://datatracker.ietf.org/doc/draft-ietf-isis-segment-routing-
> > > extensions/?include_text=1
> > >
> > > section 4.3
> > >
> > > /hannes
> > >
> > >
> > > On May 14, 2014, at 5:10 PM, Les Ginsberg (ginsberg) wrote:
> > >
> > > > Hannes -
> > > >
> > > >> -----Original Message-----
> > > >> From: Isis-wg [mailto:isis-wg-bounces@ietf.org] On Behalf Of Hannes
> > > >> Gredler
> > > >> Sent: Wednesday, May 14, 2014 7:02 AM
> > > >> To: Les Ginsberg (ginsberg)
> > > >> Cc: isis-wg@ietf.org list
> > > >> Subject: Re: [Isis-wg] New Version Notification for
> > > >> draft-ginsberg-isis-
> > > sbfd-
> > > >> discriminator-00.txt
> > > >>
> > > >> hi les,
> > > >>
> > > >> subTLV 19 clashes with Segment Routing Algorithm - suggest that you
> > > >> use code point #20 instead.
> > > >
> > > > I am happy to avoid conflicts - but the latest IS-IS SR draft
> > > http://tools.ietf.org/html/draft-previdi-isis-segment-routing-extensio
> > > ns-05
> > > > specifies sub-TLV 2 (SR Capabilities) and sub-TLV 15 (SR algorithm).
> > > > See
> > > Section 3.
> > > >
> > > > Now "15" has already been assigned by  RFC 7176 (AKA RFC 6362bis) -
> > > > so
> > > clearly this has to change.
> > > >
> > > > If you want "19" to get used for SR that's fine with me - but guess
> > > > this
> > > illustrates the value of early allocation. :-)
> > > >
> > > >   Les
> > > >
> > > >
> > > >>
> > > >> tx,
> > > >>
> > > >> /hannes
> > > >>
> > > >> On May 8, 2014, at 4:48 PM, Les Ginsberg (ginsberg) wrote:
> > > >>
> > > >>> FYI - this new draft describes how to advertise S-BFD
> > > >>> Discriminators
> > > using
> > > >> IS-IS.
> > > >>>
> > > >>> Comments are welcomed.
> > > >>>
> > > >>>   Les
> > > >>>
> > > >>>
> > > >>> -----Original Message-----
> > > >>> From: internet-drafts@ietf.org [mailto:internet-drafts@ietf.org]
> > > >>> Sent: Thursday, May 08, 2014 7:46 AM
> > > >>> To: Mach Chen; Nobo Akiya (nobo); Mach Chen; Les Ginsberg
> > > >>> (ginsberg);
> > > >> Nobo Akiya (nobo); Les Ginsberg (ginsberg)
> > > >>> Subject: New Version Notification for draft-ginsberg-isis-sbfd-
> > > >> discriminator-00.txt
> > > >>>
> > > >>>
> > > >>> A new version of I-D,
> > > >>> draft-ginsberg-isis-sbfd-discriminator-00.txt
> > > >>> has been successfully submitted by Les Ginsberg and posted to the
> > > >>> IETF repository.
> > > >>>
> > > >>> Name:		draft-ginsberg-isis-sbfd-discriminator
> > > >>> Revision:	00
> > > >>> Title:		Advertising S-BFD Discriminators in IS-IS
> > > >>> Document date:	2014-05-08
> > > >>> Group:		Individual Submission
> > > >>> Pages:		5
> > > >>> URL:
> > http://www.ietf.org/internet-drafts/draft-ginsberg-isis-sbfd-
> > > >> discriminator-00.txt
> > > >>> Status:         https://datatracker.ietf.org/doc/draft-ginsberg-isis-sbfd-
> > > >> discriminator/
> > > >>> Htmlized:       http://tools.ietf.org/html/draft-ginsberg-isis-sbfd-
> > > >> discriminator-00
> > > >>>
> > > >>>
> > > >>> Abstract:
> > > >>>  This document defines a means of advertising one or more S-BFD
> > > >>> Discriminators using the IS-IS Router Capability TLV.
> > > >>>
> > > >>>
> > > >>>
> > > >>>
> > > >>>
> > > >>> 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
> > > >>>
> > > >>> _______________________________________________
> > > >>> Isis-wg mailing list
> > > >>> Isis-wg@ietf.org
> > > >>> https://www.ietf.org/mailman/listinfo/isis-wg
> > > >>
> > > >> _______________________________________________
> > > >> Isis-wg mailing list
> > > >> Isis-wg@ietf.org
> > > >> https://www.ietf.org/mailman/listinfo/isis-wg
> >
> > _______________________________________________
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