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

Mach Chen <mach.chen@huawei.com> Fri, 16 May 2014 08:21 UTC

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From: Mach Chen <mach.chen@huawei.com>
To: "Les Ginsberg (ginsberg)" <ginsberg@cisco.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: Fri, 16 May 2014 08:21:24 +0000
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Subject: Re: [Isis-wg] New Version Notification for draft-ginsberg-isis-sbfd-discriminator-00.txt
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Les,

Yes, if there are early implementations, a code point is necessary and a formal early allocation process is needed as well. 

Best regards,
Mach

> -----Original Message-----
> From: Les Ginsberg (ginsberg) [mailto:ginsberg@cisco.com]
> Sent: Thursday, May 15, 2014 9:45 PM
> To: Mach Chen; Hannes Gredler
> Cc: isis-wg@ietf.org list
> Subject: RE: [Isis-wg] New Version Notification for
> draft-ginsberg-isis-sbfd-discriminator-00.txt
> 
> 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-exte
> > > > nsio
> > > > 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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