[tcpm] New version for draft-ietf-tcpm-yang-tcp

"Scharf, Michael" <Michael.Scharf@hs-esslingen.de> Fri, 17 June 2022 09:46 UTC

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From: "Scharf, Michael" <Michael.Scharf@hs-esslingen.de>
To: "tcpm@ietf.org" <tcpm@ietf.org>
CC: "draft-ietf-tcpm-yang-tcp@ietf.org" <draft-ietf-tcpm-yang-tcp@ietf.org>
Thread-Topic: New version for draft-ietf-tcpm-yang-tcp
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Date: Fri, 17 Jun 2022 09:46:01 +0000
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Subject: [tcpm] New version for draft-ietf-tcpm-yang-tcp
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Hi all,

The authors have published a new version -07 of draft-ietf-tcpm-yang-tcp. The long delay was mostly my fault, as my teaching day job keeps me busy.

draft-ietf-tcpm-yang-tcp got quite some comments during IETF last call. In addition to directorate reviews, there were also further comments (see the TCPM list archive). As a result, -07 includes a number of changes. The diff can be seen at:

 https://www.ietf.org/rfcdiff?url2=draft-ietf-tcpm-yang-tcp-07

I'd like to highlight several changes that may be relevant to TCPM:

1/ There was a request to better align with the TCP MIB. We have not fully followed that request given TCPM decided against that in the past. Nonetheless, we have added the TCP connection state to the connection list similar to the TCP MIB. The state description follows 793bis. One specific question is whether it actually makes sense to have a state "closed". For -07, we have decided to model the state "closed".

2/ The TCP MIB includes a TCP listener table. We have added a corresponding list in -07. This again raises some subtle questions, most notably, how to model a TCP listener that accepts connections on any IPv4 and IPv6 address. The model in -07 allows this

3/ The modeling of TCP-AO authentication parameters has changed. The TCP-AO configuration has been moved to the key-chain, i.e., the TCP model now augments the YANG model in RFC 8177. This should better align with running code. As far as we know, all router operating systems configure TCP-AO via the key-chain. The model now follows that approach, too.

Please let us know if there are any comments regarding the new version -07. It is possible that a follow-up -08 may be needed soon-ish.

Thanks

Michael


-----Original Message-----
From: tcpm <tcpm-bounces@ietf.org> On Behalf Of internet-drafts@ietf.org
Sent: Thursday, June 16, 2022 6:03 PM
To: i-d-announce@ietf.org
Cc: tcpm@ietf.org
Subject: [tcpm] I-D Action: draft-ietf-tcpm-yang-tcp-07.txt


A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the TCP Maintenance and Minor Extensions WG of the IETF.

        Title           : A YANG Model for Transmission Control Protocol (TCP) Configuration and State
        Authors         : Michael Scharf
                          Mahesh Jethanandani
                          Vishal Murgai
	Filename        : draft-ietf-tcpm-yang-tcp-07.txt
	Pages           : 28
	Date            : 2022-06-16

Abstract:
   This document specifies a minimal YANG model for TCP on devices that
   are configured and managed by network management protocols.  The YANG
   model defines a container for all TCP connections, and groupings of
   authentication parameters that can be imported and used in TCP
   implementations or by other models that need to configure TCP
   parameters.  The model also includes basic TCP statistics.  The model
   is compliant with Network Management Datastore Architecture (NMDA)
   (RFC 8342).


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-tcpm-yang-tcp/

There is also an htmlized version available at:
https://datatracker.ietf.org/doc/html/draft-ietf-tcpm-yang-tcp-07

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-tcpm-yang-tcp-07


Internet-Drafts are also available by rsync at rsync.ietf.org::internet-drafts


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