From: "Belotti, Sergio (Nokia - IT/Vimercate)" <sergio.belotti@nokia.com>
To: tom petch <ietfa@btconnect.com>
CC: TEAS WG Chairs <teas-chairs@ietf.org>, Italo Busi <Italo.Busi@huawei.com>, 
 "teas@ietf.org" <teas@ietf.org>
Thread-Topic: I-D Action: draft-ietf-teas-yang-path-computation-09.txt
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Date: Mon, 15 Jun 2020 16:02:47 +0000
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Subject: Re: [Teas] I-D Action: draft-ietf-teas-yang-path-computation-09.txt
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-----Original Message-----
From: tom petch <ietfa@btconnect.com>=20
Sent: Monday, June 15, 2020 5:31 PM
To: Belotti, Sergio (Nokia - IT/Vimercate) <sergio.belotti@nokia.com>; teas=
@ietf.org
Cc: TEAS WG Chairs <teas-chairs@ietf.org>; Italo Busi <Italo.Busi@huawei.co=
m>
Subject: Re: I-D Action: draft-ietf-teas-yang-path-computation-09.txt

From: Teas <teas-bounces@ietf.org> on behalf of Belotti, Sergio (Nokia - IT=
/Vimercate) <sergio.belotti@nokia.com>
Sent: 15 June 2020 16:23

Dear TEASers,

we have updated the path computation RPC model to:
- align with the latest version of the TE tunnel YANG model (https://tools.=
ietf.org/html/draft-ietf-teas-yang-te-23)

<tp>
teas-yang-te is no more - it is an RFC:-)=20

<Sergio> Hi Tom, that is our hope asap, but now for the moment. Maybe you w=
ere referring to te-types , now RFC 8776 ?
=20
I have yet to check whether or not it is the same.  I will look again at yo=
ur I-D but may be not this week.

<Sergio> Thanks




Tom Petch
(not a YANG Doctor)

- add support of path computation for protected paths (as discussed in IETF=
 104)
- add support of path computation for bidirectional paths
- returning errors in case path computation fails
- add support for multi-layer path computation

The changes to the YANG model are described in section 5.3 and 5.4 of the 0=
9 version of the draft.

We think that with these changes the model is now ready for YANG doctor rev=
iew, however due to the significant amount of changes we would appreciate a=
 review from the WG before asking YANG doctor review.

Thanks
Italo and Sergio (as editors)

-----Original Message-----
From: I-D-Announce <i-d-announce-bounces@ietf.org> On Behalf Of internet-dr=
afts@ietf.org
Sent: Friday, June 12, 2020 6:22 PM
To: i-d-announce@ietf.org
Cc: teas@ietf.org
Subject: I-D Action: draft-ietf-teas-yang-path-computation-09.txt


A New Internet-Draft is available from the on-line Internet-Drafts director=
ies.
This draft is a work item of the Traffic Engineering Architecture and Signa=
ling WG of the IETF.

        Title           : Yang model for requesting Path Computation
        Authors         : Italo Busi
                          Sergio Belotti
                          Victor Lopez
                          Anurag Sharma
                          Yan Shi
        Filename        : draft-ietf-teas-yang-path-computation-09.txt
        Pages           : 94
        Date            : 2020-06-12

Abstract:
   There are scenarios, typically in a hierarchical SDN context, where
   the topology information provided by a TE network provider may not
   be sufficient for its client to perform end-to-end path computation.
   In these cases the client would need to request the provider to
   calculate some (partial) feasible paths.

   This document defines a YANG data model for an RPC to request path
   computation. This model complements the solution, defined in
   RFCXXXX, to configure a TE Tunnel path in "compute-only" mode.

   [RFC EDITOR NOTE: Please replace RFC XXXX with the RFC number of
   draft-ietf-teas-yang-te once it has been published.

   Moreover this document describes some use cases where a path
   computation request, via YANG-based protocols (e.g., NETCONF or
   RESTCONF), can be needed.


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-teas-yang-path-computation/

There are also htmlized versions available at:
https://tools.ietf.org/html/draft-ietf-teas-yang-path-computation-09
https://datatracker.ietf.org/doc/html/draft-ietf-teas-yang-path-computation=
-09

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=3Ddraft-ietf-teas-yang-path-computation-0=
9


Please note that it may take a couple of minutes from the time of submissio=
n until the htmlized version and diff are available at tools.ietf.org.

Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/


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