Modelling transponders and 3R capabilities

[italobusi]

The YANG model defines some types and identities which are needed by drafts with different maturity levels: some of which are getting ready for WG LC (e.g., wson and flexi-grid topology models ) while others are still work-in-progress (e.g., optical impairment aware topology model).

For example, the modelling of transponder and 3R capabilities is still work-in-progress: ietf-ccamp-wg/draft-ietf-ccamp-optical-impairment-topology-yang#23.

In order not to block the progress of the other drafts which are getting ready for WG LC (e.g., wson and flexi-grid topology models), it may be worthwhile considering removing some of these definitions from the version of the draft which is sent to IESG.

These definitions can be kept in the draft for the time being, to simplify progressing the work-in-progress, but should be removed before sending this draft to IESG. A new draft for updating layer0-types could also be started to support other work which is still in-progress within CCAMP WG.

[italobusi]

To be removed before sending the draft to IESG:

draft-ietf-ccamp-layer0-types/ietf-layer0-types.yang

Lines 54 to 62 in 8e0d187

	typedef operational-mode {
	type string;
	description
	"Vendor-specific mode that guarantees interoperability.
	It must be an string with the following format:
	B-DScW-ytz(v) where all these attributes are conforming
	to the ITU-T recommendation";
	reference "ITU-T G.698.2 (11/2018) Section 5.3";
	}

[italobusi]

To be removed before sending the draft to IESG:

draft-ietf-ccamp-layer0-types/ietf-layer0-types.yang

Lines 181 to 216 in 8e0d187

	identity wavelength-assignment {
	description
	"Wavelength selection base";
	reference
	"RFC6163:Framework for GMPLS and Path Computation Element
	(PCE) Control of Wavelength Switched Optical Networks (WSONs)";
	}
	identity unspecified-wavelength-assignment {
	base wavelength-assignment;
	description
	"No method specified";
	}
	identity first-fit-wavelength-assignment {
	base wavelength-assignment;
	description
	"All the available wavelengths are numbered,
	and this WA (Wavelength Assignment) method chooses
	the available wavelength with the lowest index";
	}
	identity random-wavelength-assignment {
	base wavelength-assignment;
	description
	"This WA method chooses an available
	wavelength randomly";
	}
	identity least-loaded-wavelength-assignment {
	base wavelength-assignment;
	description
	"This WA method selects the wavelength that
	has the largest residual capacity on the most loaded
	link along the route (in multi-fiber networks)";
	}

[italobusi]

To be removed before sending the draft to IESG:

draft-ietf-ccamp-layer0-types/ietf-layer0-types.yang

Lines 262 to 307 in 8e0d187

	identity term-type {
	description
	"Termination type";
	reference
	"ITU-T G.709: Interfaces for the Optical Transport Network";
	}
	identity term-phys {
	base term-type;
	description
	"Physical layer termination";
	reference
	"ITU-T G.709: Interfaces for the Optical Transport Network";
	}
	identity term-OTU {
	base term-type;
	description
	"OTU (Optical Transport Unit) termination";
	reference
	"ITU-T G.709: Interfaces for the Optical Transport Network";
	}
	identity term-ODU {
	base term-type;
	description
	"ODU (Optical Data Unit) termination";
	reference
	"ITU-T G.709: Interfaces for the Optical Transport Network";
	}
	identity term-OPU {
	base term-type;
	description
	"OPU (Optical Payload Unit) termination";
	reference
	"ITU-T G.709: Interfaces for the Optical Transport Network";
	}
	identity term-section {
	base term-type;
	description
	"Section layer termination";
	reference
	"ITU-T G.709: Interfaces for the Optical Transport Network";
	}

[italobusi]

To be removed before sending the draft to IESG:

draft-ietf-ccamp-layer0-types/ietf-layer0-types.yang

Lines 487 to 508 in 8e0d187

	identity fec-type {
	description
	"FEC (Forward Error Correction) type";
	reference
	"ITU-T G.709: Interfaces for the Optical Transport Network";
	}
	identity g-fec {
	base fec-type;
	description
	"G-FEC (Generic-FEC)";
	}
	identity e-fec {
	base fec-type;
	description
	"E-FEC (Enhanced-FEC)";
	}
	identity no-fec {
	base fec-type;
	description
	"No FEC";
	}

[haomianzheng]

The following commit addressed this issue, by removing the tranponder/3R related information.
10acf68

[italobusi]

The following commit addressed this issue, by removing the tranponder/3R related information.
10acf68

I agree. I have linked this open issue with PR#3 so it will be automatically closed when the PR#3 is merged