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Re: [CCAMP] Confirming plan for Issue #48: (Was: Closing G.709 open issues)

John E Drake <jdrake@juniper.net> Fri, 17 May 2013 17:21 UTC

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From: John E Drake <jdrake@juniper.net>
To: Lou Berger <lberger@labn.net>, Fatai Zhang <zhangfatai@huawei.com>
Thread-Topic: [CCAMP] Confirming plan for Issue #48: (Was: Closing G.709 open issues)
Thread-Index: AQHOUxolXg1utrqdnEm+hHhHNvjEopkJnSEg
Date: Fri, 17 May 2013 17:15:23 +0000
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References: <518A82D9.7080508@labn.net> <F82A4B6D50F9464B8EBA55651F541CF84317B000@SZXEML552-MBX.china.huawei.com> <518BAB17.9090807@labn.net> <4A1562797D64E44993C5CBF38CF1BE480C67D9@ESESSMB301.ericsson.se> <518BDAFF.40706@labn.net> <F82A4B6D50F9464B8EBA55651F541CF84317B39A@SZXEML552-MBX.china.huawei.com> <519657FE.5030602@labn.net>
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Cc: "draft-ietf-ccamp-otn-g709-info-model@tools.ietf.org" <draft-ietf-ccamp-otn-g709-info-model@tools.ietf.org>, "draft-ietf-ccamp-gmpls-signaling-g709v3@tools.ietf.org" <draft-ietf-ccamp-gmpls-signaling-g709v3@tools.ietf.org>, CCAMP <ccamp@ietf.org>
Subject: Re: [CCAMP] Confirming plan for Issue #48: (Was: Closing G.709 open issues)
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Lou,

I think the original text is fine and your attempted re-write completely mangled its meaning.  The label is a bit vector whose length is equal to the ODUk rate / TSG. 

Irrespectively Yours,

John


> -----Original Message-----
> From: ccamp-bounces@ietf.org [mailto:ccamp-bounces@ietf.org] On Behalf
> Of Lou Berger
> Sent: Friday, May 17, 2013 9:17 AM
> To: Fatai Zhang
> Cc: draft-ietf-ccamp-otn-g709-info-model@tools.ietf.org; CCAMP; draft-
> ietf-ccamp-gmpls-signaling-g709v3@tools.ietf.org
> Subject: [CCAMP] Confirming plan for Issue #48: (Was: Closing G.709
> open issues)
> 
> Authors/WG,
> 	From the mail on the list it seems to me that we've reached
> closure on Issue #48: "Document no explicit indication of TSG in the
> label"
> (http://trac.tools.ietf.org/wg/ccamp/trac/ticket/48).  I'd like to
> confirm my reading.
> 
> As I read the list, this issue will be resolved by making the following
> change to draft-ietf-ccamp-gmpls-signaling-g709v3.
> 
> OLD
>   Note that the
>   Length field in the label format MAY be used to indicate the TS
>   type of the HO ODUk (i.e., TS granularity at 1.25Gbps or 2.5Gbps)
>   since the HO ODUk type can be known from IF_ID RSVP_HOP Object. In
>   some cases when there is no Link Management Protocol (LMP) or
>   routing to make the two end points of the link to know the TSG,
>   the TSG information used by another end can be deduced from the
>   label format. For example, for HO ODU2 link, the value of the
>   length filed will be 4 or 8, which indicates the TS granularity is
>   2.5Gbps or 1.25Gbps, respectively.
> 
> NEW
>   Please note that the TS granularity of an HO ODUk can be inferred
> from
>   the length of the label. The values of 4 and 16 indicate a TS
>   granularity of 2.5Gps, while the values 2, 8, 32 and 80 indicate a TS
>   granularity of 1.25Gps.
> 
> Please speak up if you disagree with this resolution.
> 
> Thanks,
> Lou
> 
> On 5/9/2013 9:41 PM, Fatai Zhang wrote:
> > For point 1), "1" should be dropped and "7" should be corrected to
> "8" in your proposed text.
> >
> 
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