Return-Path: X-Original-To: teas@ietfa.amsl.com Delivered-To: teas@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 5A174C1D876E for ; Fri, 18 Oct 2024 02:35:03 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: 1.829 X-Spam-Level: * X-Spam-Status: No, score=1.829 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, FREEMAIL_REPLY=1, HELO_DYNAMIC_IPADDR=1.951, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_BLOCKED=0.001, RCVD_IN_MSPIKE_H2=-0.001, RCVD_IN_ZEN_BLOCKED_OPENDNS=0.001, RDNS_DYNAMIC=0.982, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01, URIBL_BLOCKED=0.001, URIBL_DBL_BLOCKED_OPENDNS=0.001, URIBL_ZEN_BLOCKED_OPENDNS=0.001] autolearn=no autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=foxmail.com Received: from mail.ietf.org ([50.223.129.194]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 7KUnd8HsD0Th for ; Fri, 18 Oct 2024 02:34:59 -0700 (PDT) Received: from out203-205-221-202.mail.qq.com (out203-205-221-202.mail.qq.com [203.205.221.202]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 10A0AC1D4A92 for ; Fri, 18 Oct 2024 02:34:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=foxmail.com; s=s201512; t=1729244093; bh=2ef5z4o6lmoZdJ5i81uHPzTS4/3ly+tBE0dDrvo020k=; h=Date:From:To:Subject:References; b=dasQBfBd1Kueyr9PUwOWZeuaa8F12NhUnqY7Ru8EVUk6ADIsH5B/7s8+9pZdG6Eax VhXeDyrX5IIXvViXLW8eIUdVp9OrV0G7HgId15NBOZ/Rebx661LtPl6IlU6R3iRXOt UELWtr2JLcyn2bu+yHzDkwNkopUymZVz7HlUy3KY= Received: from LAPTOP-BOBOCIFS ([124.127.66.120]) by newxmesmtplogicsvrsza15-1.qq.com (NewEsmtp) with SMTP id 8B3B3C50; Fri, 18 Oct 2024 17:34:51 +0800 X-QQ-mid: xmsmtpt1729244091tbwm5rlar Message-ID: X-QQ-XMAILINFO: NQR8mRxMnur9AFHCJt/ESyJj2nGIK9rP6uPPkMeMPqPt3tapdI03XnejZeOHzw ltAVapn5dgEmtpEzjO38GkeWCPoTafPO4KB/ZhSMW5TQLgZinBq42GiCst6U0fx01Ag63xvIPST2 AmCqEO6wHHyVG5uJK7Mc+ja05I6Wnu4K+w0Rhh3+BLspTnhBnbNhSwjj7uSVMtf7PyNqt+9Ohfzv Y+p4W5vobA7Pvk0Z5fYZcSiiTO7R+inQYAw1CQy+Je3SW0aMeRmBhjEELDRMrY4uEHPEelrqKauA Jsdy/z3dkgSXCpsRslH9+XUzm+n6T3ej+qJ4W7pLy/z/WMrMCHw4S16p7t70Lun0yGv8KYJAIYVa H8NV7W4OEUoRVp2L4pSsU39JkYuvnAz6/pGFRotr7YAs586O7rg9s3rkmrW/vJENlt0gs5KqOMcD BXQUnB0scR9Ina8er4KzaG5RenUlz39jx3F/T7al5tTbW/qq14zY/veDh8/6gLh2+G8h7uJ2k8CY 86T+ZIzjkWObIXsFgkqpR1sTwUYZWmUUYEwSwBZvd1VXCaJaABN1saGUy1bhRK2IhHtsQKjB5B6J a2xFs+PDKbcrD+xO/S94PDP0ouEIsCJ771YICw9X9NJOjyHB21s/CptS452+Fcvuz8Rrq3qfvmXR sUvGxltMgVzb7Kz0bMYljt4L9/1q7qrpnOSjv2JSrROmAdZ1Gze0tqe7yFKeN6vfrhrxiZ5kdVlk BCANf0ZSZXCCwwoMrAwX+HxURLWZSP5EjMMJeJ6T5T41qd2c3IkL7Fot7XrK2PgHgOspyr2jJOnf MzyD8/NBJVOmTJNl+W1+JZ1eoacg4oaLmQ10UXr5kWA1Zbd+4abiPba9X/4SboVJJba6sgQzkN6D jgQWlyfUeygKaiog00SzYAfk+T7FJ07iEjsvdmtFNPpHtoqQmqgXMnUJXZtojY0FqckQp/xW/rLM BAn0JSGyrL6T9b5BfrXxSxhMezuS4K+aFowbXLh7hc9LqH/1xiOFFgynqJYVW9UL9u9ek7ankOLW oxW9NXtSdTqcG7ix6tsM8l6CJ5J6mROz2hvhfdyyXR590XN1HGvMdNUdZ2Iy1Z39PWPrVGXvgM/o 4oX5iDKU1CznLFELA= X-QQ-XMRINFO: NS+P29fieYNw95Bth2bWPxk= Date: Fri, 18 Oct 2024 17:34:51 +0800 From: "Chongfeng Xie" To: teas References: X-Priority: 3 X-GUID: FA411140-4DA2-42FF-97F5-33E195CA0B25 X-Has-Attach: no X-Mailer: Foxmail 7.2.25.306[cn] Mime-Version: 1.0 X-OQ-MSGID: <2024101817345085738754@foxmail.com> Content-Type: multipart/alternative; boundary="----=_001_NextPart610815202270_=----" Message-ID-Hash: YLL2BRSA2RYHP72Q6YM5VD7VG6IHWRR7 X-Message-ID-Hash: YLL2BRSA2RYHP72Q6YM5VD7VG6IHWRR7 X-MailFrom: chongfeng.xie@foxmail.com X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; header-match-teas.ietf.org-0; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header X-Mailman-Version: 3.3.9rc6 Precedence: list Subject: =?utf-8?q?=5BTeas=5D_Re=3A_Revisiting_NRP_Selector?= List-Id: Traffic Engineering Architecture and Signaling working group discussion list Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: This is a multi-part message in MIME format. ------=_001_NextPart610815202270_=---- Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: base64 DQpIaSBUZWFzIENoYWlycywNCg0KQmVsb3cgYXJlIG15IGZlZWRiYWNrIHRvIHlvdXIgcXVlc3Rp b25zLA0KDQpXaGF0IGRvIHdlIGNhbGwgdGhpcyBkZWRpY2F0ZWQgaWRlbnRpZmllciBmaWVsZD8g IA0K4oCcTlJQIFNlbGVjdG9yIElE4oCdIGFuZCDigJxOUlAgRGF0YSBQbGFuZSBJROKAnSBoYXZl IGJlZW4gcHJvcG9zZWQgc28gZmFyLg0KW0Nob25nZmVuZ10gSeKAmWQgcHJlZmVyIHRvIHVzZSDi gJxEYXRhIFBsYW5lIE5SUCBJROKAnS4gTlJQIFNlbGVjdG9yIGlzIHRoZSBnZW5lcmFsIHRlcm0g dG8gcmVmZXIgdG8gYWxsIHRoZSBkYXRhIHBsYW5lIG1lY2hhbmlzbXMgdG8gc2VsZWN0L2lkZW50 aWZ5IHRoZSBOUlAgYSBwYWNrZXQgbWFwcGVkIHRvLg0KIA0KTGVuZ3RoIG9mIHRoZSBkZWRpY2F0 ZWQgaWRlbnRpZmllciBmaWVsZA0KSXMgaXQgb2theSBmb3IgdGhpcyB0byBiZSBkaWZmZXJlbnQg Zm9yIGRpZmZlcmVudCBkYXRhLXBsYW5lIHR5cGVzPw0KQSAzMi1iaXQgZmllbGQgaGFzIGJlZW4g cHJvcG9zZWQgZm9yIHRoZSBJUHY2IERhdGEtUGxhbmU7IEEgY291cGxlIG9mIG9wdGlvbnMg4oCT IDggYml0cyBhbmQgMTMgYml0cyDigJMgaGF2ZSBiZWVuIHByb3Bvc2VkIGZvciB0aGUgTVBMUyBk YXRhIHBsYW5lDQpQbGVhc2Ugbm90ZSB0aGF0IHRoZSBhY3R1YWwgZGF0YS1wbGFuZSBzcGVjaWZp YyBlbmNvZGluZ3MgYXJlIG91dHNpZGUgdGhlIHNjb3BlIG9mIHRoZSBURUFTIFdHLiANCltDaG9u Z2ZlbmddIENvbnNpZGVyaW5nIHRoYXQgdGhlcmUgYXJlIG1hbnkgZGlmZmVyZW5jZXMgaW4gdGhl IGVuY29kaW5nIG9mIGRpZmZlcmVudCBkYXRhIHBsYW5lLCBhbmQgdGhlaXIgYXBwbGljYWJpbGl0 eSBjb3VsZCBhbHNvIGJlIGRpZmZlcmVudCwgaXQgaXMgT0sgdG8gaGF2ZSBkaWZmZXJlbnQgbGVu Z3RoIGZvciB0aGlzIElELiBBbmQgSSBhZ3JlZSBzcGVjaWZpYyBlbmNvZGluZyBiZWxvbmdzIHRv IHRoZSByZXNwZWN0aXZlIFdHcy4NCiANCuKAnFN0cmljdOKAnSBtYXRjaCBpbmRpY2F0b3INCldo ZW4gYSBkZWRpY2F0ZWQgaWRlbnRpZmllciBpcyB1c2VkIGFzIHRoZSBOUlAgU2VsZWN0b3IsIGlz IGl0IHVzZWZ1bCB0byBoYXZlIGFuIGV4cGxpY2l0IGluZGljYXRvciB0byBkZXRlcm1pbmUgd2hh dCB0byBkbyB3aXRoIGEgcGFja2V0IHRoYXQgY2Fubm90IGJlIG1hcHBlZCB0byBhbiBOUlA/DQpE cm9wIHRoZSBwYWNrZXQgdnMgTWFwIGl0IHRvIGEgZGVmYXVsdCBzZXQgb2YgbmV0d29yayByZXNv dXJjZXMNClRoZSBhY3R1YWwgZW5jb2Rpbmcgb2YgdGhpcyDigJxpbmRpY2F0b3LigJ0gY291bGQg YmUgZGlmZmVyZW50IGZvciBkaWZmZXJlbnQgZGF0YS1wbGFuZSB0eXBlcyBhbmQgd2lsbCBuZWVk IHRvIGJlIGRpc2N1c3NlZCBpbiB0aGUgcmVzcGVjdGl2ZSBXR3MgKG91dHNpZGUgdGhlIHNjb3Bl IG9mIFRFQVMgV0cpLg0KW0Nob25nZmVuZ10gQXMgYW4gb3BlcmF0b3IgSSBzZWUgdGhlIHN0cmlj dCBtYXRjaCBpbmRpY2F0b3IgdmVyeSB1c2VmdWwgYW5kIGNhbiBhdm9pZCBjb21wbGV4IGNvbmZp Z3VyYXRpb25zIGluIHNvbWUgdXNlIGNhc2VzLiBTYW1lIGFzIG15IHJlc3BvbnNlIHRvIHRoZSBw cmV2aW91cyBxdWVzdGlvbiwgaXRzIGVuY29kaW5nIGluIGRpZmZlcmVudCBkYXRhIHBsYW5lIGJl bG9uZ3MgdG8gdGhlIHJlc3BlY3RpdmUgV0dzLg0KDQpCZXN0IHJlZ2FyZHMNCkNob25nZmVuZw0K DQpGcm9tOiBWaXNobnUgUGF2YW4gQmVlcmFtDQpEYXRlOiAyMDI0LTEwLTEwIDAzOjQ1DQpUbzog VEVBUyBXRw0KQ0M6IFRFQVMgV0cgQ2hhaXJzDQpTdWJqZWN0OiBbVGVhc10gUmV2aXNpdGluZyBO UlAgU2VsZWN0b3INCldlIGhhZCBhIHZpcnR1YWwgaW50ZXJpbSBtZWV0aW5nIG9uIE1heSAyOXRo IDIwMjQgdG8gZGlzY3VzcyB0aGUgZm9sbG93aW5nIE5SUCBTZWxlY3RvciBzcGVjaWZpYyBpdGVt czoNCkdlbmVyaWMgcmVxdWlyZW1lbnRzIGFuZCBvcHRpb25zIGZvciBjYXJyeWluZyBOUlAgU2Vs ZWN0b3IgaW4gSVAgYW5kIE1QTFMgcGFja2V0cw0KVGhlIHJlbGV2YW50IG1vZGVsaW5nIGFzcGVj dHMgDQpUaGUgZGF0YSBwbGFuZSBzcGVjaWZpYyBleHRlbnNpb25zIHRoYXQgY29tZSBpbnRvIHBs YXkgd2hlbiBhIGRlZGljYXRlZCBpZGVudGlmaWVyIGlzIHVzZWQgYXMgdGhlIE5SUCBzZWxlY3Rv ci4NCiANClRoZSBtZWV0aW5nIG1pbnV0ZXMgYXJlIGNhcHR1cmVkIGF0Og0KaHR0cHM6Ly9kYXRh dHJhY2tlci5pZXRmLm9yZy9tZWV0aW5nL2ludGVyaW0tMjAyNC10ZWFzLTAxL21hdGVyaWFscy9t aW51dGVzLWludGVyaW0tMjAyNC10ZWFzLTAxLTIwMjQwNTI5MTQwMC0wMA0KIA0KV2UgKHRoZSBj aGFpcnMpIGFyZSBzdGFydGluZyBhIHRocmVhZCB0byBjbG9zZSBvbiBzb21lIG9mIHRoZSBpdGVt cyBzcGVjaWZpYyB0byBoYXZpbmcgYSBkZWRpY2F0ZWQgaWRlbnRpZmllciB0aGF0IGlzIHVzZWQg YXMgTlJQIHNlbGVjdG9yIChub3RlIHRoYXQgTlJQIHNlbGVjdG9yIHJlZmVycyB0byB0aGUgbWFy a2luZyBpbiB0aGUgcGFja2V04oCZcyBuZXR3b3JrIGxheWVyIGhlYWRlciB0aGF0IGlzIHVzZWQg dG8gYXNzb2NpYXRlIHRoZSBwYWNrZXQgd2l0aCBhbiBOUlApLg0KV2hhdCBkbyB3ZSBjYWxsIHRo aXMgZGVkaWNhdGVkIGlkZW50aWZpZXIgZmllbGQ/ICAgDQrigJxOUlAgU2VsZWN0b3IgSUTigJ0g YW5kIOKAnE5SUCBEYXRhIFBsYW5lIElE4oCdIGhhdmUgYmVlbiBwcm9wb3NlZCBzbyBmYXIuDQpM ZW5ndGggb2YgdGhlIGRlZGljYXRlZCBpZGVudGlmaWVyIGZpZWxkIA0KSXMgaXQgb2theSBmb3Ig dGhpcyB0byBiZSBkaWZmZXJlbnQgZm9yIGRpZmZlcmVudCBkYXRhLXBsYW5lIHR5cGVzPw0KQSAz Mi1iaXQgZmllbGQgaGFzIGJlZW4gcHJvcG9zZWQgZm9yIHRoZSBJUHY2IERhdGEtUGxhbmU7IEEg Y291cGxlIG9mIG9wdGlvbnMg4oCTIDggYml0cyBhbmQgMTMgYml0cyDigJMgaGF2ZSBiZWVuIHBy b3Bvc2VkIGZvciB0aGUgTVBMUyBkYXRhIHBsYW5lIA0KUGxlYXNlIG5vdGUgdGhhdCB0aGUgYWN0 dWFsIGRhdGEtcGxhbmUgc3BlY2lmaWMgZW5jb2RpbmdzIGFyZSBvdXRzaWRlIHRoZSBzY29wZSBv ZiB0aGUgVEVBUyBXRy4gDQrigJxTdHJpY3TigJ0gbWF0Y2ggaW5kaWNhdG9yIA0KV2hlbiBhIGRl ZGljYXRlZCBpZGVudGlmaWVyIGlzIHVzZWQgYXMgdGhlIE5SUCBTZWxlY3RvciwgaXMgaXQgdXNl ZnVsIHRvIGhhdmUgYW4gZXhwbGljaXQgaW5kaWNhdG9yIHRvIGRldGVybWluZSB3aGF0IHRvIGRv IHdpdGggYSBwYWNrZXQgdGhhdCBjYW5ub3QgYmUgbWFwcGVkIHRvIGFuIE5SUD8gDQpEcm9wIHRo ZSBwYWNrZXQgdnMgTWFwIGl0IHRvIGEgZGVmYXVsdCBzZXQgb2YgbmV0d29yayByZXNvdXJjZXMN ClRoZSBhY3R1YWwgZW5jb2Rpbmcgb2YgdGhpcyDigJxpbmRpY2F0b3LigJ0gY291bGQgYmUgZGlm ZmVyZW50IGZvciBkaWZmZXJlbnQgZGF0YS1wbGFuZSB0eXBlcyBhbmQgd2lsbCBuZWVkIHRvIGJl IGRpc2N1c3NlZCBpbiB0aGUgcmVzcGVjdGl2ZSBXR3MgKG91dHNpZGUgdGhlIHNjb3BlIG9mIFRF QVMgV0cpLg0KIA0KUGxlYXNlIGNoaW1lIGluIHdpdGggeW91ciB0aG91Z2h0cyBvbiB0aGVzZSBp dGVtcy4NCi0gUGF2YW4gYW5kIE9zY2FyDQpwczogQEppZSDigJMgVGhhbmtzIGZvciB0aGUgb2Zm bGluZSBwcm9kLiBQbGVhc2UgZmVlbCBmcmVlIHRvIGFkZCBvdGhlciBvcGVuIGl0ZW1zIHNwZWNp ZmljIHRvIE5SUCBzZWxlY3RvciAodGhhdCB3ZSBtYXkgaGF2ZSBtaXNzZWQpIHRvIHRoZSBhYm92 ZSBsaXN0Lg0K ------=_001_NextPart610815202270_=---- Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable =0A

Hi Teas Chairs,

Below are my f= eedback to your questions,

  • What do we call this dedica= ted identifier field?  =
    • =E2=80=9CNRP Selector ID=E2=80=9D and = =E2=80=9CNRP Data Plane ID=E2=80=9D have been proposed so far.
      • =

[Chongfeng] I=E2=80= =99d prefer to use =E2=80=9CData Plane NRP ID=E2=80=9D. NRP Selector is th= e general term to refer to all the data plane mechanisms to select/identif= y the NRP a packet mapped to.

 

=
    <= li class=3D"MsoNormal" style=3D"margin: 0cm 0cm 0.0001pt; text-align: left= ; font-size: 10.5pt; font-family: Calibri, sans-serif; color: rgb(33, 33, = 33);">Lengt= h of the dedicated identifier field=
    • Is it okay for this to be differe= nt for different data-plane types?<= /span>
    • A 32-bit field has been proposed for the IPv6 Data-= Plane; A couple of options =E2=80=93 8 bits and 13 bits =E2=80=93 have bee= n proposed for the MPLS data plane<= /span>
      • Please note that the actual data-p= lane specific encodings are outside the scope of the TEAS WG. =

[Ch= ongfeng] Considering that there are many differences in the encoding of di= fferent data plane, and their applicability could also be different, it is= OK to have different length for this ID. And I agree specific encoding be= longs to the respective WGs.

 

<= ul type=3D"disc" style=3D"margin-bottom: 0px; font-family: "Microsoft= YaHei UI", Tahoma; margin-top: 0px; list-style-position: inside;">=E2=80= =9CStrict=E2=80=9D match indicator<= /span>
  • When a dedicated identifier is use= d as the NRP Selector, is it useful to have an explicit indicator to deter= mine what to do with a packet that cannot be mapped to an NRP?
    • Drop t= he packet vs Map it to a default set of network resources
  • The actual encodi= ng of this =E2=80=9Cindicator=E2=80=9D could be different for different da= ta-plane types and will need to be discussed in the respective WGs (outsid= e the scope of TEAS WG).

[Chongfeng] As an operator I see the strict match indicat= or very useful and can avoid complex configurations in some use cases. Sam= e as my response to the previous question, its encoding in different data = plane belongs to the respective WGs.


Best regards

Chongfeng


Date: 2024-10-10 03:45
To: TEAS WG
Subject: [Teas]= Revisiting NRP Selector
=0A
=0A

We had a virtual interim meeting on May 29th&= nbsp;2024 to discuss the=0A following NRP= Selector specific items:

=0A
    =0A
  • Generic requirements=0A and option= s for carrying NRP Selector in IP and MPLS packets
  • The relevant modeli= ng=0A aspects 
  • The data plane specific=0A extensions that come = into play when a dedicated identifier is used as the NRP selecto= r.
=0A

 

=0A

The meeting minutes are captured at:

=0A=0A

 

=0A

We (the chai= rs) are starting a thread to close on some of the items specific to having= a dedicated identifier that is used as NRP selector (note that NRP select= or refers=0A to the marking in the packet=E2=80=99s network layer header t= hat is used to associate the packet with an NRP).

=0A
    =0A
  • What do we call this= dedicated identifier field?  =0A
      = =0A
    • =E2=80=9CNRP Selector ID=E2=80=9D and =E2=80=9CNRP Data= Plane ID=E2=80=9D have been proposed so far.
    =0A
  • Length of the dedicated identifier field= =0A
      =0A
    • Is it okay for this to be diff= erent for different data-plane types?
    • A = 32-bit field has been proposed for the IPv6 Data-Plane; A couple of option= s =E2=80=93 8 bits and 13 bits =E2=80=93 have been proposed for the MPLS d= ata plane=0A
        =0A
      • Please = note that the actual data-plane specific encodings are outside the scope o= f the TEAS WG. 
      =0A
    =0A
  • =E2=80=9CStrict=E2=80=9D match indicator=0A
      =0A
    • = When a dedicated identifier is used as th= e NRP Selector, is it useful to have an explicit indicator to determine wh= at to do with a packet that cannot be mapped to an NRP?=0A=0A
    • Drop the packet vs Map it to a defa= ult set of network resources
    =0A
  •  

    =0A

    Please chime in with your thoughts on these items.<= /font>

    =0A

    - Pavan and Oscar

    = =0A

    ps: @Jie =E2=80=93 Thanks for the offl= ine prod. Please feel free to add other open items specific to NRP selecto= r (that we may have missed) to the above list.

    =0A
=0A
=0A ------=_001_NextPart610815202270_=------