Dear all,

 

The IETF TEAS and CCAMP working groups would like to thank the ETSI ISG NFV for 
notifying the start of the work on multi-site connectivity services. We 
acknowledge the commonalities between the WIM infrastructure manager interfaces 
and the ACTN ones, in particular the CMI (CNC-MDSC) interface. Our 
understanding is that the scope of the WIM interfaces is not limited to the 
management of the underlay Traffic Engineered infrastructure but also the 
connectivity services that can be built on top of that, like e.g. L3VPNs and 
L2VPNs.

 

The relevant documents specifying YANG models (and related status) for the 
connectivity services are:

*       L3SM – A service model for L3VPN services – RFC 8299
*       L2SM – A service model for L2VPN service – RFC 8466
*       L1CSM -  
<https://datatracker.ietf.org/doc/draft-ietf-ccamp-l1csm-yang/> 
https://datatracker.ietf.org/doc/draft-ietf-ccamp-l1csm-yang/  stable working 
group document already reviewed by YANG doctors.
*       L3NM –  <https://datatracker.ietf.org/doc/draft-ietf-opsawg-l3sm-l3nm/> 
https://datatracker.ietf.org/doc/draft-ietf-opsawg-l3sm-l3nm/  stable working 
group document

 

On the other side ACTN provides guidelines for the implementation of interfaces 
for the management of traffic engineered underlay infrastructure 
(https://datatracker.ietf.org/doc/draft-ietf-teas-actn-yang/). A wide variety 
of YANG models can be used to implement various features (e.g. calendaring, 
telemetry) but a minimal set of mandatory models to operate the network is 
identified:

 

*       TE topology:  
<https://datatracker.ietf.org/doc/draft-ietf-teas-yang-te-topo/> 
https://datatracker.ietf.org/doc/draft-ietf-teas-yang-te-topo/ – approved by 
the IESG and in the editor queue
*       ACTN virtual network:  
<https://datatracker.ietf.org/doc/draft-ietf-teas-actn-vn-yang/> 
https://datatracker.ietf.org/doc/draft-ietf-teas-actn-vn-yang/ – stable working 
group document
*       TE tunnel:  <https://datatracker.ietf.org/doc/draft-ietf-teas-yang-te/> 
https://datatracker.ietf.org/doc/draft-ietf-teas-yang-te/ – stable working 
group document

 

Extensions to these models are defined in the CCAMP working group to provide 
technology specific extensions. TE Topology and TE tunnels augmentations are 
being defined for WSON (Wavelength Switched Optical Networks), flexi-grid WSON, 
OTN (digital layer of the Optical Transport Network).

In the eventuality in which the ETSI NFV ISG identifies additional requirements 
that are not currently addressed in the ACTN framework (RFC8453) and models, 
they can be proposed as individual contributions either in the TEAS working 
group (if technology agnostic) or in the CCAMP working group (if technology 
specific) and follow the IETF process. 

 

Best Regards,

Lou Berger & Vishnu Pavan Beeram (TEAS chairs)

Daniele Ceccarelli & Fatai Zhang (CCAMP chairs)

 

From: ETSI NFVsupport <[email protected]> 
Sent: den 27 september 2019 08:43
To: [email protected]; [email protected]; [email protected]; Daniele 
Ceccarelli <[email protected]>; Fatai Zhang 
<[email protected]>
Cc: Deborah Brungard <[email protected]>; Martin Vigoureux 
<[email protected]>; Alvaro Retana <[email protected]>; 
[email protected]; ETSI NFVsupport <[email protected]>; Cristina Badulescu 
<[email protected]>; 'Joan Triay_Internet' 
<[email protected]>; Zarrar Yousaf <[email protected]>; 
Diego Lopez <[email protected]>
Subject: Approved Liaison Statement from ETSI ISG NFV to IETF TEAS

 

Dear All,

 

Please find attached an approved Liaison Statement from ETSI ISG NFV to the 
IETF TEAS.

 

Should you require any further information please do not hesitate to contact 
the ETSI NFV Technical Manager Joan Triay, the NFV Chairman Diego Lopez or  
<mailto:[email protected]> [email protected]

 

best regards

 

Louise Clarke  – Standardisation Support Professional CSC

ETSI ●  
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 www.etsi.org/nfv ●  <mailto:[email protected]%0d> [email protected]

Phone: +33 (0)4 92 94 49 12 ● Mobile: +33 (0)6 67 33 34 92

 

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