From nobody Wed Nov 4 19:13:40 2020 Return-Path: X-Original-To: idr@ietfa.amsl.com Delivered-To: idr@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 996513A1657 for ; Wed, 4 Nov 2020 19:13:38 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.329 X-Spam-Level: X-Spam-Status: No, score=-1.329 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, FROM_EXCESS_BASE64=0.001, HTML_MESSAGE=0.001, INVALID_MSGID=0.568, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] 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 uzso6KAYGdT0 for ; Wed, 4 Nov 2020 19:13:36 -0800 (PST) Received: from cmccmta1.chinamobile.com (cmccmta1.chinamobile.com [221.176.66.79]) by ietfa.amsl.com (Postfix) with ESMTP id BDD053A1655 for ; Wed, 4 Nov 2020 19:13:35 -0800 (PST) Received: from spf.mail.chinamobile.com (unknown[172.16.121.19]) by rmmx-syy-dmz-app04-12004 (RichMail) with SMTP id 2ee45fa36dd495d-ad0b7; Thu, 05 Nov 2020 11:13:24 +0800 (CST) X-RM-TRANSID: 2ee45fa36dd495d-ad0b7 X-RM-TagInfo: emlType=0 X-RM-SPAM-FLAG: 00000000 Received: from CMCC-PC (unknown[223.69.130.235]) by rmsmtp-syy-appsvr10-12010 (RichMail) with SMTP id 2eea5fa36dd0c61-a269b; Thu, 05 Nov 2020 11:13:22 +0800 (CST) X-RM-TRANSID: 2eea5fa36dd0c61-a269b MIME-Version: 1.0 x-PcFlag: fcf323cf-a4e1-4927-80c8-5f87e4fbc8e3_5_24609 X-Mailer: PC_RICHMAIL 2.8.2 Date: 05 Nov 2020 11:13:22 +0800 From: =?utf-8?B?WWlzb25nIExpdQ==?= To: =?utf-8?B?U3VzYW4gSGFyZXM=?=, idr Message-ID: 20201105111322339237848@chinamobile.com> Content-Type: multipart/Alternative; boundary="----=_001_NextPart339237848_=----" Archived-At: Subject: [Idr] =?utf-8?q?Re=EF=BC=9A__WG_Adoption_for_draft-zhu-idr-bgp-l?= =?utf-8?q?s-path-mtu_=2811/1/2020_to_11/16/2020=29?= X-BeenThere: idr@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Inter-Domain Routing List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 05 Nov 2020 03:13:39 -0000 This is a multi-part message in MIME format. ------=_001_NextPart339237848_=---- Content-Type: text/plain; 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Hi=20all

= I=20support=20the=20adoption=20of=20this= =20draft.
ThanksYiso= ng=E5=8F=91=E4=BB=B6=E4=BA=BA:=20Susan=20Hares=E6=97=B6=E9=97=B4:= =202020/11/02(=E6=98=9F=E6=9C=9F=E4=B8=80)13:03=E6=94=B6= =E4=BB=B6=E4=BA=BA:=20idr;=E4=B8=BB=E9=A2=98:=20=5BIdr=5D=20WG=20Adoption=20for=20draft-= zhu-idr-bgp-ls-path-mtu=20(11/1/2020=20to=2011/16/2020)=0A=0AThis=20begins=20a=202=20week=20WG=20ado= ption=20call=20for=20

=0Adraft-z= hu-idr-bgp-ls-path-mtu-04.txt=20(11/1=20=E2=80=93=2011/16/2020).=20=0A=

=0A 

=0AThe=20authors=20should=20send=20in=20an=20IPR=20stateme= nt=20for=20this=20draft=20=0A

=0Aby=2011/5=20so=20the=20WG=20can=20include=20the=20IPR=20status=20in=20thei= r=20decision.=0A

=0A <= /o:p>

=0AYou=20can=20access=20the=20draft= =20at:=20

=0Ahttps://data= tracker.ietf.org/doc/draft-zhu-idr-bgp-ls-path-mtu/

=0A 

=0ASince=20this=20draft=20is=20reference=20by=20an=20existing=20IDR=20dra= ft

=0AI=E2=80=99ve=20included=20= a=20bit=20of=20background=20below=20to=20help=20you=20place=20 

=0Athis=20draft=20into=20the=20larger= =20context=20of=20the=20SR=20additions=20to=20BGP-LS

=0A=0Aand=20the=20draft-ietf-idr-tunnel-encaps-19.txt.=0A=0A 

=0A=0AThis=20draft= =20does=20continue=20BGP-LS=20additions. =20if=20you=20

=0A=0Aare=20opposed=20to=20any=20BGP-LS=20additions=20rather= =20than=20

=0A=0Athis=20specific=20addition,= =20please=20make=20that=20clear=20in=20your=20

=0A=0Acomment=20in=20this=20discussion.  =20

=0A 

=0AThe=20authors=20requested=20a=20WG=20adoption=20at=20IETF= =20108. =20

=0AThe=20IDR=20= co-chairs=20thank=20the=20authors=20for=20their=20patience.=20  <= o:p>

=0AThis=20draft=20has=20been=20d= elayed=20by=20process=20of=20having=20a=20

=0Anew=20document=20shepherd=20(Sue=20Hares)=20come=20up=20to= =20speed

=0Aon=20draft-ietf-idr-= tunnel-encapsulation.=20

=0A 

=0ACheers,=20Sue=20

=0A 

=0ABackground

=0A= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

=0ASegment=20Routing=20technology=20creates=20SR=20tunnels=20that=20are= =20=0A

=0Adirectly=20overlaid=20= on=20MPLS=20or=20SRv6. =20While=20existing=20MPLS=20technology=0A=

=0A(LDP=20and=20RSV-TE)=20provides= =20mechanisms=20to=20negotiate=20path=20MTU

=0Abased=20on=20individual=20link=20MTU=20limits,=20the=20Segm= ent=20Routing=20(SR)=0A

=0Aon=20= BGP-LS=20Link=20Attribute=20does=20not=20pass=20information=20on=20

=0AMTU=20size=20per=20link. =20&nb= sp;

=0A 

=0A<= p=20class=3D=22MsoNormal=22>draft-ietf-idr-sr-policy-path-mtu-02.txt=20send= s=20PATH=20MTU=20=0A

=0Ainformat= ion=20in=20the=20tunnel-encapsulation=20attribute=20for=20the=20tunnel=20ty= pe=20 

=0ASR-Policy=20that= =20handles=20segment=20routing=20(SR)=20paths.=20    &n= bsp; 

=0AHowever,=20it=20la= cks=20the=20information=20to=20create=20a=20reasonable=20=0A

= =0APath=20size=20since=20the=20BGP-LS=20Link= =20Attribute=20does=20distribute

=0Athis=20information.=20

=0A 

=0AThe=20draft=20proposes= =20adding=20a=20new=20sub-TLV=20for=20MTU=20size=20

=0Ato=20the=20BGP-LS=20Link=20Attribute=20TLV,=20and=20=

=0Adraft-ietf-idr-sr-policy-pat= h-mtu-02.txt=20mentions=20this=20=0A

=0Adraft=20as=20one=20possible=20way=20to=20distribute=20the=20per=20l= ink=20

=0AMTU.=20 

=0A 

=0AQuestions=20for=20the=20authors=20might=20be:=20=

=0Aa)=20Are=20there=20ways=20to=20pass=20I= GP=20link=20MTUs=20in=20

=0Athe= =20IGPs?=20 If=20so,=20is=20this=20needed=20in=20BGP-LS

= =0A 

=0Ab)=20What=20other=20mechanisms=20pass=20link=20MTU?=20  = ;

=0A 

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=0A 

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