Return-Path: X-Original-To: i2rs@ietfa.amsl.com Delivered-To: i2rs@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 419EF12D618 for ; Tue, 5 Jul 2016 13:02:19 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: 1.749 X-Spam-Level: * X-Spam-Status: No, score=1.749 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DOS_OUTLOOK_TO_MX=2.845, HTML_MESSAGE=0.001, RDNS_NONE=0.793, T_KAM_HTML_FONT_INVALID=0.01] autolearn=no autolearn_force=no Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 9RonXxivmTZj for ; Tue, 5 Jul 2016 13:02:17 -0700 (PDT) Received: from hickoryhill-consulting.com (unknown [50.245.122.97]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 0765D12D5A4 for ; Tue, 5 Jul 2016 13:02:15 -0700 (PDT) X-Default-Received-SPF: pass (skip=loggedin (res=PASS)) x-ip-name=174.124.185.200; From: "Susan Hares" To: "'Robert Wilton'" , References: <20160701200743.24561.41389.idtracker@ietfa.amsl.com> In-Reply-To: Date: Tue, 5 Jul 2016 16:01:47 -0400 Message-ID: <257201d1d6f8$0fe11de0$2fa359a0$@ndzh.com> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_2573_01D1D6D6.88D10480" X-Mailer: Microsoft Outlook 14.0 Content-Language: en-us Thread-Index: AQHopX2aMfIm8FzKr5WgIF/lQNm+IQIq/6qQn8tChnA= X-Authenticated-User: skh@ndzh.com Archived-At: Subject: Re: [i2rs] I-D Action: draft-ietf-i2rs-ephemeral-state-13.txt X-BeenThere: i2rs@ietf.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: "Interface to The Internet Routing System \(IRS\)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 05 Jul 2016 20:02:19 -0000 This is a multipart message in MIME format. ------=_NextPart_000_2573_01D1D6D6.88D10480 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Robert: Thank you for the question. Answers below. From: Robert Wilton [mailto:rwilton@cisco.com] Sent: Tuesday, July 5, 2016 11:48 AM To: Susan Hares; i2rs@ietf.org Subject: Re: [i2rs] I-D Action: draft-ietf-i2rs-ephemeral-state-13.txt Hi Sue, Looking at requirement REQ-07, I had a further clarifying question: 3.4. Ephemeral Configuration overlapping Local Configuration Ephemeral-REQ-07: Ephemeral configuration state could override overlapping local configuration state, or vice-versa. Implementations MUST provide a mechanism to choose which takes precedence. This mechanism MUST include local configuration (policy) and MAY be provided via the I2RS protocol mechanisms. > It is unclear to me whether this requirement only covers the specific case that a datanode for the same YANG schema leaf exists with two different values in both the local configuration and ephemeral configuration datastores, or whether it is also necessary to allow one datastore to override the other datastore by deleting a datanode for the same YANG schema leaf. This case covers the data node that exists within the same Yang leaf with two different values in local configuration and ephemeral configuration. The I2RS architecture document (section 6.3, and the specific examples in section 6.3.1) specifically indicates that the ephemeral data store should not override other data stores by deleting a data in the Local Configuration. E.g. if ephemeral ds overrides local configuration ds, and the local config ds has leaf foo=true, and ephemeral wants to override and force leaf foo to be deleted altogether. Ephemeral Grouping route { } Static configuration Grouping route { /* or logical equivalent to ephemeral route */ } If ephemeral overwrites static, then static must stay for when ephemeral goes away. If local static configuration overwrites ephemeral, the I2RS Agent sends a notification to the I2RS client. Thanks, Rob On 01/07/2016 21:07, internet-drafts@ietf.org wrote: A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Interface to the Routing System of the IETF. Title : I2RS Ephemeral State Requirements Authors : Jeff Haas Susan Hares Filename : draft-ietf-i2rs-ephemeral-state-13.txt Pages : 11 Date : 2016-07-01 Abstract: This document covers requests to the NETMOD and NETCONF Working Groups for functionality to support the ephemeral state requirements to implement the I2RS architecture. The IETF datatracker status page for this draft is: https://datatracker.ietf.org/doc/draft-ietf-i2rs-ephemeral-state/ There's also a htmlized version available at: https://tools.ietf.org/html/draft-ietf-i2rs-ephemeral-state-13 A diff from the previous version is available at: https://www.ietf.org/rfcdiff?url2=draft-ietf-i2rs-ephemeral-state-13 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/ _______________________________________________ i2rs mailing list i2rs@ietf.org https://www.ietf.org/mailman/listinfo/i2rs . ------=_NextPart_000_2573_01D1D6D6.88D10480 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Robert:

 

Thank you for the question.  Answers below. =

 

 

From: Robert Wilton [mailto:rwilton@cisco.com]
Sent: Tuesday, = July 5, 2016 11:48 AM
To: Susan Hares; = i2rs@ietf.org
Subject: Re: [i2rs] I-D Action: = draft-ietf-i2rs-ephemeral-state-13.txt

<= p class=3DMsoNormal> 

Hi = Sue,

Looking at requirement REQ-07, I had a further = clarifying question:

3.4.  =
Ephemeral Configuration overlapping Local =
Configuration
 =

   =
Ephemeral-REQ-07: Ephemeral configuration state could =
override
   =
overlapping local configuration state, or =
vice-versa.
   =
Implementations MUST provide a mechanism to choose which =
takes
   =
precedence.  This mechanism MUST include local configuration =
(policy)
   and =
MAY be provided via the I2RS protocol =
mechanisms.


> = It is unclear to me whether this requirement only covers the = specific case that a datanode for the same YANG schema leaf exists with = two different values in both the local configuration and ephemeral configuration datastores, = or whether it is also  necessary to allow one datastore to = override the other datastore by deleting a datanode for the same YANG = schema leaf.

This case covers the data node that exists = within the same Yang leaf with two different values in local = configuration and ephemeral configuration.   The I2RS = architecture document (section 6.3, and the specific examples in section = 6.3.1) specifically indicates that the ephemeral data store should not = override other data stores by deleting a data in the Local = Configuration. 

E.g. if ephemeral ds overrides local = configuration ds, and the local config ds has leaf foo=3Dtrue, and = ephemeral wants to override and force leaf foo to be deleted = altogether.

Ephemeral

      Grouping route = {

    }

Static configuration

   Grouping route { =   

  /* or logical equivalent to ephemeral route = */

  }

If = ephemeral overwrites static, then static must stay for when ephemeral = goes away.  If local static configuration overwrites ephemeral, the = I2RS Agent sends a notification to the I2RS client. =

Thanks,
Rob

On 01/07/2016 21:07, internet-drafts@ietf.org = wrote:

 
A New Internet-Draft is available from the on-line =
Internet-Drafts directories.
This draft is a work =
item of the Interface to the Routing System of the =
IETF.
 
   =
     =
Title           : I2RS =
Ephemeral State =
Requirements
     =
   Authors        =
 : Jeff =
Haas
        =
;            =
      Susan Hares
  =
Filename        : =
draft-ietf-i2rs-ephemeral-state-13.txt
  =
Pages           : =
11
  =
Date            : =
2016-07-01
 
Abstract:
   This document covers requests to the =
NETMOD and NETCONF Working
   Groups for =
functionality to support the ephemeral state =
requirements
   to implement the I2RS =
architecture.
 
 =
;
The IETF datatracker status page for this draft =
is:
https://datatracker.ietf.org/doc/draft-ietf-i2rs-ephemeral-state/
 
There's also a htmlized =
version available at:
h=
ttps://tools.ietf.org/html/draft-ietf-i2rs-ephemeral-state-13
 
A diff from the previous =
version is available at:
https://www.ietf.org/rfcdiff?url2=3Ddraft-ietf-i2rs-ephemeral-stat=
e-13
 
 
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/
 
____________=
___________________________________
i2rs mailing =
list
i2rs@ietf.org
https://www.ietf.org/=
mailman/listinfo/i2rs
.
 

 

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