Re: [Teas] I-D Action: draft-ietf-teas-yang-path-computation-09.txt

"Belotti, Sergio (Nokia - IT/Vimercate)" <sergio.belotti@nokia.com> Mon, 15 June 2020 16:02 UTC

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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> 
Sent: Monday, June 15, 2020 5:31 PM
To: Belotti, Sergio (Nokia - IT/Vimercate) <sergio.belotti@nokia.com>om>; teas@ietf.org
Cc: TEAS WG Chairs <teas-chairs@ietf.org>rg>; Italo Busi <Italo.Busi@huawei.com>
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:-) 

<Sergio> Hi Tom, that is our hope asap, but now for the moment. Maybe you were referring to te-types , now RFC 8776 ?
 
I have yet to check whether or not it is the same.  I will look again at your 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 09 version of the draft.

We think that with these changes the model is now ready for YANG doctor review, 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-drafts@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 directories.
This draft is a work item of the Traffic Engineering Architecture and Signaling 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=draft-ietf-teas-yang-path-computation-09


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.

Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/


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