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

Hannes Gredler <hannes@juniper.net> Tue, 20 May 2014 15:28 UTC

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Date: Tue, 20 May 2014 17:28:05 +0200
From: Hannes Gredler <hannes@juniper.net>
To: Mach Chen <mach.chen@huawei.com>
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References: <20140508144606.23448.98448.idtracker@ietfa.amsl.com> <F3ADE4747C9E124B89F0ED2180CC814F23D873B9@xmb-aln-x02.cisco.com> <4D0CA3D6-D549-4C01-AA25-04E0DA7BC2A2@juniper.net> <F3ADE4747C9E124B89F0ED2180CC814F23DB54D8@xmb-aln-x02.cisco.com> <623A9BED-1CBC-4968-B82B-D78F6AA9B471@juniper.net> <F3ADE4747C9E124B89F0ED2180CC814F23DB5581@xmb-aln-x02.cisco.com> <F73A3CB31E8BE34FA1BBE3C8F0CB2AE25D9C4A85@SZXEMA510-MBX.china.huawei.com> <F3ADE4747C9E124B89F0ED2180CC814F23DB8A4C@xmb-aln-x02.cisco.com> <F73A3CB31E8BE34FA1BBE3C8F0CB2AE25D9C51AF@SZXEMA510-MBX.china.huawei.com>
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Cc: "Les Ginsberg \(ginsberg\)" <ginsberg@cisco.com>, "isis-wg@ietf.org list" <isis-wg@ietf.org>
Subject: Re: [Isis-wg] New Version Notification for draft-ginsberg-isis-sbfd-discriminator-00.txt
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hi mach,

having a registry which is under 'expert-review' and given that
one of those experts is the WG chair, allows us to have some some 'flexibility'
for early implementers.

/hannes

On Fri, May 16, 2014 at 08:21:24AM +0000, Mach Chen wrote:
| 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
| > > >
| > > > _______________________________________________
| > > > Isis-wg mailing list
| > > > Isis-wg@ietf.org
| > > > https://www.ietf.org/mailman/listinfo/isis-wg
| 
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