Re: [mpls] I-D Action: draft-ietf-mpls-sr-over-ip-03.txt

"Adrian Farrel" <> Sun, 03 March 2019 19:42 UTC

Return-Path: <>
Received: from localhost (localhost []) by (Postfix) with ESMTP id 4EE96130DE9 for <>; Sun, 3 Mar 2019 11:42:18 -0800 (PST)
X-Virus-Scanned: amavisd-new at
X-Spam-Flag: NO
X-Spam-Score: -2.6
X-Spam-Status: No, score=-2.6 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_DNSWL_LOW=-0.7] autolearn=ham autolearn_force=no
Received: from ([]) by localhost ( []) (amavisd-new, port 10024) with ESMTP id q-r8UEYFiYyM for <>; Sun, 3 Mar 2019 11:42:15 -0800 (PST)
Received: from ( []) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by (Postfix) with ESMTPS id 0F172130DE7 for <>; Sun, 3 Mar 2019 11:42:14 -0800 (PST)
Received: from ( []) by (8.14.4/8.14.4) with ESMTP id x23JgCWs006450 for <>; Sun, 3 Mar 2019 19:42:12 GMT
Received: from (unknown []) by IMSVA (Postfix) with ESMTP id A0DF42203B for <>; Sun, 3 Mar 2019 19:42:11 +0000 (GMT)
Received: from (unknown []) by (Postfix) with ESMTPS id 8BE472203A for <>; Sun, 3 Mar 2019 19:42:11 +0000 (GMT)
Received: from LAPTOPK7AS653V ([]) (authenticated bits=0) by (8.14.4/8.14.4) with ESMTP id x23Jg9nN032611 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for <>; Sun, 3 Mar 2019 19:42:11 GMT
From: Adrian Farrel <>
References: <>
In-Reply-To: <>
Date: Sun, 03 Mar 2019 19:42:08 -0000
Organization: Old Dog Consulting
Message-ID: <0a0701d4d1f9$311700c0$93450240$>
MIME-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit
X-Mailer: Microsoft Outlook 16.0
Thread-Index: AQJ+UOQcv11md9ld1R17Pv7ozWXXAKSnTKxg
Content-Language: en-gb
X-TM-AS-Product-Ver: IMSVA-
X-TM-AS-Result: No--4.428-10.0-31-10
X-imss-scan-details: No--4.428-10.0-31-10
X-TMASE-Result: 10--4.427900-10.000000
X-TMASE-MatchedRID: 6lay9u8oTUPxIbpQ8BhdbEBylsUaLJ7sA9UhA/EMrwPFJnEpmt9OE39M UW3noMgmepYdDkfIivrQ6avGafooztzH3tllVlwyb/5HBZ6dvRghotH7bEpEMqvM+zzl/BSTROz dcn4CHIvnjmT3vqmhOfGxLQyk54v7zCsOCBxDp3W4jAucHcCqnVF5adRR2Ej12dP9ypSe+feK61 Q63RemBLy+K0fDzPdzpw2+/nDPnnH2v8tc+AA4/mtGlKM15tA2lnrMq7Sriu1rEoFtNYg0C5Xed LakhtIrqIGy3LUo/P/ZA97+E8FEEnstocCIqrwTnJ5tL+LbGOOFKXsoBdprwmjliw+xvItdahP/ 1jRJ6pzp1b7KiZSVPg5gsVv7cmyxDyszNV8ahX2puD25aEtgt3WT6A/Vdqa0myiLZetSf8nJ4y0 wP1A6AJy/CPd12p6Jh9eWnlL1x8DdB/CxWTRRu/558CedkGIvzP4Frv6e/e5eT6zcJPzj/RAY9G cAHRLW8vmJflyQmOMMKRrNRhHlBn7cGd19dSFd
X-TMASE-SNAP-Result: 1.821001.0001-0-1-12:0,22:0,33:0,34:0-0
Archived-At: <>
Subject: Re: [mpls] I-D Action: draft-ietf-mpls-sr-over-ip-03.txt
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Multi-Protocol Label Switching WG <>
List-Unsubscribe: <>, <>
List-Archive: <>
List-Post: <>
List-Help: <>
List-Subscribe: <>, <>
X-List-Received-Date: Sun, 03 Mar 2019 19:42:19 -0000


This version catches the reviews during IETF last call. Thanks to Andy
Malis, Robert Sparks, and Al Morton.

Changes are mainly minor editorial.
In a few places, descriptive text has been changed from lower case to use
normative language. This does not make any change to the technical content,
but makes more clear how implementations must behave.


-----Original Message-----
From: mpls <> On Behalf Of
Sent: 03 March 2019 19:05
Subject: [mpls] I-D Action: draft-ietf-mpls-sr-over-ip-03.txt

A New Internet-Draft is available from the on-line Internet-Drafts
This draft is a work item of the Multiprotocol Label Switching WG of the

        Title           : SR-MPLS over IP
        Authors         : Xiaohu Xu
                          Stewart Bryant
                          Adrian Farrel
                          Syed Hassan
                          Wim Henderickx
                          Zhenbin Li
	Filename        : draft-ietf-mpls-sr-over-ip-03.txt
	Pages           : 16
	Date            : 2019-03-03

   MPLS Segment Routing (SR-MPLS) is an MPLS data plane-based source
   routing paradigm in which the sender of a packet is allowed to
   partially or completely specify the route the packet takes through
   the network by imposing stacked MPLS labels on the packet.  SR-MPLS
   could be leveraged to realize a source routing mechanism across MPLS,
   IPv4, and IPv6 data planes by using an MPLS label stack as a source
   routing instruction set while preserving backward compatibility with

   This document describes how SR-MPLS capable routers and IP-only
   routers can seamlessly co-exist and interoperate through the use of
   SR-MPLS label stacks and IP encapsulation/tunneling such as MPLS-in-
   UDP as defined in RFC 7510.

The IETF datatracker status page for this draft is:

There are also htmlized versions available at:

A diff from the previous version is available at:

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

Internet-Drafts are also available by anonymous FTP at:

mpls mailing list