Re: [CCAMP] Connectivity-matrix in YANG models for WSON devices
Jorge E. López de Vergara Méndez <jorge.lopez_vergara@uam.es> Fri, 21 July 2017 15:01 UTC
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From: "Jorge E. López de Vergara Méndez" <jorge.lopez_vergara@uam.es>
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Subject: Re: [CCAMP] Connectivity-matrix in YANG models for WSON devices
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Hi Dieter, all, I agree with the comments provided by Young. In any case, for the following version we will see how to augment the matrix from draft-ietf-teas-yang-te-topo. Best regards, -Jorge El 21/07/2017 a las 15:11, Leeyoung escribió: > > Hi Dieter, > > Please see inline for my comment. > > Thanks. > > Young > > *From:*CCAMP [mailto:ccamp-bounces@ietf.org] *On Behalf Of *Dieter Beller > *Sent:* Friday, July 21, 2017 1:20 PM > *To:* ccamp@ietf.org > *Subject:* [CCAMP] Connectivity-matrix in YANG models for WSON devices > > Hi CCAMPers, > > during the joint session an YANG and the CCAMP session yesterday, I > commented that the following two drafts are defining a connectivity > matrix in the > YANG models for WSON devices: > > https://datatracker.ietf.org/doc/draft-ietf-ccamp-wson-yang/ > https://datatracker.ietf.org/doc/draft-vergara-ccamp-flexigrid-yang/ > > > I was suggesting to have a look at the definition of the > connectivity-matrix in > https://datatracker.ietf.org/doc/draft-ietf-teas-yang-te-topo/ and re-use > that definition unless there are good reasons to define the > connectivity matrix for WSON devices differently. > > YL>> We have not finished the model. We will add a few items to the > Conn. Matrix which are physical layer specific information > augmentation. I can foresee the ports/interfaces in and out of the > device may be associated with FEC/Modulation constraints and other > impairment aspect as well. I also foresee within a device, we may have > embedded resource pool models, etc. But as you say, anything has > defined in the TE-topo will be augmented and we will only describe > additional properties peculiar to optical. > > Moreover, the connectivity-matrix of a WSON device (e.g. a ROADM) > typically reflects the connectivity limitations of the wavelength > selective switching > fabric of the device and hence should be read-only (ro) as opposed to > read-writable (rw). Why would an operator further restrict the > connectivity > capabilities of a WSON device? > > YL>> With the physical data added, there may be administrative issues > where some restriction would apply. We don’t have specific use-case at > this moment, but leaving +rw may be sensible thing. > > > > Thanks, > Dieter > > > > _______________________________________________ > CCAMP mailing list > CCAMP@ietf.org > https://www.ietf.org/mailman/listinfo/ccamp -- __ _ __ __ Jorge E. López de Vergara Méndez, Ph.D. \/ V /\ |\_\ /\_\ Escuela Politécnica Superior || | / \ || \/ | Universidad Autónoma de Madrid || | / /\ \ || | http://www.eps.uam.es/~jlopezv || |/ ____ \|| \ / | mailto:Jorge.Lopez_Vergara@uam.es `-____-/_/ \_\|_|\/|_| Tel. +34 91 497 22 46
- [CCAMP] Connectivity-matrix in YANG models for WS… Dieter Beller
- Re: [CCAMP] Connectivity-matrix in YANG models fo… Leeyoung
- Re: [CCAMP] Connectivity-matrix in YANG models fo… Jorge E. López de Vergara Méndez
- Re: [CCAMP] Connectivity-matrix in YANG models fo… Igor Bryskin
- Re: [CCAMP] Connectivity-matrix in YANG models fo… Leeyoung
- Re: [CCAMP] Connectivity-matrix in YANG models fo… Igor Bryskin
- Re: [CCAMP] Connectivity-matrix in YANG models fo… Daniele Ceccarelli