Re: [CCAMP] Liaison from OIF - GMPLS control of OTN B100G services

Daniele Ceccarelli <daniele.ietf@gmail.com> Thu, 26 January 2023 10:50 UTC

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From: Daniele Ceccarelli <daniele.ietf@gmail.com>
Date: Thu, 26 Jan 2023 11:50:15 +0100
Message-ID: <CAB01kMgwNX7=vP+oUVshW+q8Z2C4XGy3GmK4NHmC90p6VKS13w@mail.gmail.com>
To: Kimberly Naughton <liaisons@oiforum.com>, "Otto, Klaus-Holger (Nokia - DE/Nuremberg)" <klaus-holger.otto@nokia.com>, "Hejia (Jia)" <hejia@huawei.com>, jsadler@infinera.com
Cc: adrian@olddog.co.uk, CCAMP <ccamp@ietf.org>, teas@ietf.org, John Scudder <jgs@juniper.net>, ccamp-chairs@ietf.org
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Archived-At: <https://mailarchive.ietf.org/arch/msg/ccamp/BU7f6vli6BCfIDUhIPuNQzYSAdU>
Subject: Re: [CCAMP] Liaison from OIF - GMPLS control of OTN B100G services
Precedence: list

Dear Mr Klaus-Holger, all,

Some of our colleagues active in the OIF made us aware of your concerns
with respect to the OTN beyond 100G work. Given that
draft-ietf-ccamp-gmpls-otn-b100g-applicability has already passed the IETF
last call we tried to act as fast as possible.

You can find the resolution at the following link to the CCAMP mailing list
archive:
https://mailarchive.ietf.org/arch/msg/ccamp/zyGAk2FuzIsjIsDB1NF7P0QgJM4/
(it should be publicly available but please let us know if you don't have
access to it).

We believe that the advertisement of the 5Gbit/s TS is not needed and we
asked the RFC editor to update the text of section 4.3 of the draft as
follows to state it explicitly and explain the motivations.

"For routing, it is deemed that no extension to current mechanisms defined
in [RFC7138] is needed.

The ODUCn link, which is the lowest layer of the ODU multiplexing hierarchy
involving multiple ODU layers, is assumed to have been already
configured when GMPLS is used to set up ODUk over ODUCn, therefore the
resources that need to be advertised are the resources that are exposed by
this ODUCn link and the ODUk multiplexing hierarchy on it. The5Gbit/s
OPUCn time slots do not need to be advertised, while the
1.25Gbit/s and 2.5Gbit/s OPUk time slots need to be advertised using the
mechanisms already defined in [RFC7138].

Since there is a 1:1 correspondence between the ODUCn and the OTUCn signal,
there is no need to explicitly define a new value to represent the ODUCn
signal type in the OSPF-TE routing protocol."
Thanks again for your interest in our work and please let us know if
this solves your concerns.

Best regards,

Daniele Ceccarelli (CCAMP co-chair), Fatai Zhang (CCAMP co-chair),
Luis Miguel Contreras Murillo (CCAMP co-chair)

On Tue, Jan 24, 2023 at 9:11 PM Kimberly Naughton <liaisons@oiforum.com>
wrote:

> Dear Messieurs,
>
>
>
> On behalf of Klaus-Holger Otto, OIF Technical Committee chair, please see
> the attached liaison letter from OIF.
>
>
>
> Kind regards,
>
> Kimberly
>
> ------------------------
>
> Kimberly Naughton
>
> OIF, Project Manager
>
> www.oiforum.com
>
> knaughton@oiforum.com
>
> 5177 Brandin Court
> Fremont, CA  94538
> Phone: +1.510.492.4042 (direct) / +1.510.492.4040 (main)
>
>
>
>
>
>
>

Re: [CCAMP] Liaison from OIF - GMPLS control of O… Daniele Ceccarelli