Re: [Teas] New Version Notification for draft-lee-teas-te-service-mapping-yang-07.txt

[Leeyoung <[e-mail]>]

Hi Lou,

I see your point. If we were to do only L3VPN per se, it would be OK to augment L3SM model to add TE related parameters. But here we have LxSM where x=1,2,3 and ACTN VN (in addition, there could be another service model we have not seen such as L0SM) and it would more scalable and flexible to have one TE Service Mapping Model to which all service models are covered as Giuseppe pointed out.

Another point is that in most cases the top level service orchestrator is dealing with many different services together and there may be correlations across different services it offers. In such case, having a TE-Service mapping model would make sense.

Just my thought.

Thanks.
Young

From: Fioccola Giuseppe [mailto:[e-mail]]
Sent: Friday, May 04, 2018 3:19 AM
To: Lou Berger <[e-mail]>; Leeyoung <[e-mail]>; [e-mail]
Cc: Dhruv Dhody <[e-mail]>; Jeff Tantsura <[e-mail]>; Daniele Ceccarelli <[e-mail]>; Vishnu Pavan Beeram <[e-mail]>
Subject: R: New Version Notification for draft-lee-teas-te-service-mapping-yang-07.txt

Hi Lou, Young,
This is an interesting point. The augmentation for LxSM is possible but, in this case, it could not be the right way because it is a less flexible approach. In addition te-topology-ids and te-tp-ids are probably only optional information for the interface between Customer and Service Provider. So, in my opinion, it would be convenient to have a Service Mapping Yang Model.

Thanks,

Giuseppe

Da: Lou Berger [mailto:[e-mail]]
Inviato: martedì 1 maggio 2018 15:05
A: Leeyoung; Vishnu Pavan Beeram; [e-mail]<mailto:[e-mail]>
Cc: Dhruv Dhody; Fioccola Giuseppe; Jeff Tantsura; Daniele Ceccarelli
Oggetto: Re: New Version Notification for draft-lee-teas-te-service-mapping-yang-07.txt


Hi Young,
see below.

On 4/5/2018 10:57 AM, Leeyoung wrote:

Hi Pavan and Lou,



We have updated the draft to incorporate Pavan's comment (during London meeting) to generalize the model for TE.



Regarding the mapping, we have added options for all three:



-              VN (ACTN VN model)

-              Single abstract node in TE topology (TE-topology model)

-              List of tunnels (TE-tunnel model)



See the changes as follows:





         +---------+          +-------------+         +----------+

         |  L3SM   | <------> |             | <-----> | ACTN VN  |

         +---------+          |             |         |  Model   |

                              |             |         +----------+

                              |             |

         +---------+          | TE-Service  |         +----------+

         |  L2SM   | <------> |Mapping Model| <-----> | TE-Topo  |

         +---------+          |             |         |   Model  |

                              |             |         +----------+

                              |             |

         +---------+          |             |         +----------+

         |  L1CSM  | <------> |             | <-----> | TE-Tunnel|

         +---------+          |             |         |   Model  |

                              +-------------+         +----------+



Let us know what you think.

I think having a way to map from the LxSMs to  te topology makes a lot of sense.  Although, personally I would have looked at augmenting the existing models with te-topology-ids and te-tp-ids before defining a new module.  This said, what's really important is the opinion of WG contributors.  So I'd be more interested in hearing what others think of the approach.

Lou




Best regards,

Young & Dhruv



-----------------------------------------------------------------------------------------------

4. YANG Data Tree



module: ietf-te-service-mapping

    +--rw te-service-mapping

       +--rw service-mapping

       |  +--rw mapping-list* [map-id]

       |     +--rw map-id            uint32

       |     +--rw map-type?         map-type

       |     +--rw (service)?

       |     |  +--:(l3vpn)

       |     |  |  +--rw l3vpn-ref?        -> /l3:l3vpn-svc/vpn-services/vpn-

service/vpn-id

       |     |  +--:(l2vpn)

       |     |  |  +--rw l2vpn-ref?        -> /l2:l2vpn-svc/vpn-services/vpn-

service/vpn-id

       |     |  +--:(l1vpn)

       |     |     +--rw l1vpn-ref?        -> /l1:l1cs/service/service-

list/subscriber-l1vc-id

       |     +--rw (te)?

       |        +--:(actn-vn)

       |        |  +--rw actn-vn-ref?      -> /vn:actn/vn/vn-list/vn-id

       |        +--:(te-topo)

       |        |  +--rw vn-topology-id?   te-types:te-topology-id

       |        |  +--rw abstract-node?    -> /nw:networks/network/node/node-

id

       |        +--:(te-tunnel)

       |           +--rw te-tunnel-list*   te:tunnel-ref

       +--rw site-mapping

          +--rw mapping-list* [map-id]

             +--rw map-id         uint32

             +--rw (service)?

             |  +--:(l3vpn)

             |  |  +--rw l3vpn-ref?     -> /l3:l3vpn-svc/sites/site/site-id

             |  +--:(l2vpn)

             |  |  +--rw l2vpn-ref?     -> /l2:l2vpn-svc/sites/site/site-id

             |  +--:(l1vpn)

             |     +--rw l1vpn-ref?     -> /l1:l1cs/access/uni-list/UNI-ID

             +--rw (te)?

                +--:(actn-vn)

                |  +--rw actn-vn-ref?   -> /vn:actn/ap/access-point-

list/access-point-id

                +--:(te)

                   +--rw ltp?           te-types:te-tp-id





-----Original Message-----
From: [e-mail]<mailto:[e-mail]> [mailto:[e-mail]]
Sent: Thursday, April 05, 2018 9:43 AM
To: Dhruv Dhody <[e-mail]><mailto:[e-mail]>; Giuseppe Fioccola <[e-mail]><mailto:[e-mail]>; Jeff Tantsura <[e-mail]><mailto:[e-mail]>; Daniele Ceccarelli <[e-mail]><mailto:[e-mail]>; Leeyoung <[e-mail]><mailto:[e-mail]>
Subject: New Version Notification for draft-lee-teas-te-service-mapping-yang-07.txt





A new version of I-D, draft-lee-teas-te-service-mapping-yang-07.txt

has been successfully submitted by Young Lee and posted to the IETF repository.



Name:                  draft-lee-teas-te-service-mapping-yang

Revision:              07

Title:                     Traffic Engineering and Service Mapping Yang Model

Document date: 2018-04-05

Group:                  Individual Submission

Pages:                  19

URL:            https://www.ietf.org/internet-drafts/draft-lee-teas-te-service-mapping-yang-07.txt

Status:         https://datatracker.ietf.org/doc/draft-lee-teas-te-service-mapping-yang/

Htmlized:       https://tools.ietf.org/html/draft-lee-teas-te-service-mapping-yang-07

Htmlized:       https://datatracker.ietf.org/doc/html/draft-lee-teas-te-service-mapping-yang

Diff:           https://www.ietf.org/rfcdiff?url2=draft-lee-teas-te-service-mapping-yang-07



Abstract:

   This document provides a YANG data model to map service model (e.g.,

   L3SM) and Traffic Engineering model (e.g., TE Tunnel or ACTN VN

   model). This model is referred to as TE service Mapping Model. This

   model is applicable to the operation's need for a seamless control

   and management of their VPN services with TE tunnel support.

















Please note that it may take a couple of minutes from the time of submission until the htmlized version and diff are available at tools.ietf.org.



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