Re: [Idr] WG Adoption for draft-zhu-idr-bgp-ls-path-mtu (11/1/2020 to 11/16/2020)
Takuya Miyasaka <ta-miyasaka@kddi-research.jp> Fri, 13 November 2020 04:16 UTC
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To: Susan Hares <shares@ndzh.com>, idr@ietf.org
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From: Takuya Miyasaka <ta-miyasaka@kddi-research.jp>
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Date: Fri, 13 Nov 2020 13:16:11 +0900
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Subject: Re: [Idr] WG Adoption for draft-zhu-idr-bgp-ls-path-mtu (11/1/2020 to 11/16/2020)
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Hi, I support the adoption of this draft. I have read the draft and, as an operator, think this is an useful and (maybe) essential BGP-LS extension for a controller to build SR-TE path. Thanks, Takuya On 2020/11/02 14:03, Susan Hares wrote: > > This begins a 2 week WG adoption call for > > draft-zhu-idr-bgp-ls-path-mtu-04.txt (11/1 – 11/16/2020). > > The authors should send in an IPR statement for this draft > > by 11/5 so the WG can include the IPR status in their decision. > > You can access the draft at: > > https://datatracker.ietf.org/doc/draft-zhu-idr-bgp-ls-path-mtu/ > <https://datatracker.ietf.org/doc/draft-zhu-idr-bgp-ls-path-mtu/> > > Since this draft is reference by an existing IDR draft > > I’ve included a bit of background below to help you place > > this draft into the larger context of the SR additions to BGP-LS > > and the draft-ietf-idr-tunnel-encaps-19.txt. > > This draft does continue BGP-LS additions. if you > > are opposed to any BGP-LS additions rather than > > this specific addition, please make that clear in your > > comment in this discussion. > > The authors requested a WG adoption at IETF 108. > > The IDR co-chairs thank the authors for their patience. > > This draft has been delayed by process of having a > > new document shepherd (Sue Hares) come up to speed > > on draft-ietf-idr-tunnel-encapsulation. > > Cheers, Sue > > Background > > =========== > > Segment Routing technology creates SR tunnels that are > > directly overlaid on MPLS or SRv6. While existing MPLS technology > > (LDP and RSV-TE) provides mechanisms to negotiate path MTU > > based on individual link MTU limits, the Segment Routing (SR) > > on BGP-LS Link Attribute does not pass information on > > MTU size per link. > > draft-ietf-idr-sr-policy-path-mtu-02.txt sends PATH MTU > > information in the tunnel-encapsulation attribute for the tunnel type > > SR-Policy that handles segment routing (SR) paths. > > However, it lacks the information to create a reasonable > > Path size since the BGP-LS Link Attribute does distribute > > this information. > > The draft proposes adding a new sub-TLV for MTU size > > to the BGP-LS Link Attribute TLV, and > > draft-ietf-idr-sr-policy-path-mtu-02.txt mentions this > > draft as one possible way to distribute the per link > > MTU. > > Questions for the authors might be: > > a) Are there ways to pass IGP link MTUs in > > the IGPs? If so, is this needed in BGP-LS > > b) What other mechanisms pass link MTU? > > > _______________________________________________ > Idr mailing list > Idr@ietf.org > https://www.ietf.org/mailman/listinfo/idr
- [Idr] WG Adoption for draft-zhu-idr-bgp-ls-path-m… Susan Hares
- Re: [Idr] WG Adoption for draft-zhu-idr-bgp-ls-pa… Chengli (Cheng Li)
- Re: [Idr] WG Adoption for draft-zhu-idr-bgp-ls-pa… Stephane Litkowski (slitkows)
- Re: [Idr] WG Adoption for draft-zhu-idr-bgp-ls-pa… Pengshuping (Peng Shuping)
- Re: [Idr] WG Adoption for draft-zhu-idr-bgp-ls-pa… Peng Liu
- Re: [Idr] WG Adoption for draft-zhu-idr-bgp-ls-pa… Huzhibo
- [Idr] 回复: WG Adoption for draft-zhu-idr-bgp-ls-pa… zhuyq8
- [Idr] 回复: WG Adoption for draft-zhu-idr-bgp-ls-pa… zhuyq8
- Re: [Idr] 回复: WG Adoption for draft-zhu-idr-bgp-l… Lizhenbin
- Re: [Idr] WG Adoption for draft-zhu-idr-bgp-ls-pa… Dongjie (Jimmy)
- [Idr] 答复: WG Adoption for draft-zhu-idr-bgp-ls-pa… Weiqiang Cheng
- Re: [Idr] WG Adoption for draft-zhu-idr-bgp-ls-pa… Pengshuping (Peng Shuping)
- Re: [Idr] WG Adoption for draft-zhu-idr-bgp-ls-pa… Stephane Litkowski (slitkows)
- [Idr] 回复: WG Adoption for draft-zhu-idr-bgp-ls-pa… Tao He(联通集团中国联通研究院-本部)
- Re: [Idr] WG Adoption for draft-zhu-idr-bgp-ls-pa… licong@chinatelecom.cn
- Re: [Idr] WG Adoption for draft-zhu-idr-bgp-ls-pa… Ran Pang(联通集团中国联通研究院- 本部)
- Re: [Idr] WG Adoption for draft-zhu-idr-bgp-ls-pa… Susan Hares
- Re: [Idr] WG Adoption for draft-zhu-idr-bgp-ls-pa… Stephane Litkowski (slitkows)
- Re: [Idr] WG Adoption for draft-zhu-idr-bgp-ls-pa… Susan Hares
- Re: [Idr] WG Adoption for draft-zhu-idr-bgp-ls-pa… Susan Hares
- Re: [Idr] WG Adoption for draft-zhu-idr-bgp-ls-pa… Pengshuping (Peng Shuping)
- Re: [Idr] WG Adoption for draft-zhu-idr-bgp-ls-pa… Acee Lindem (acee)
- Re: [Idr] WG Adoption for draft-zhu-idr-bgp-ls-pa… Susan Hares
- Re: [Idr] WG Adoption for draft-zhu-idr-bgp-ls-pa… Pengshuping (Peng Shuping)
- Re: [Idr] WG Adoption for draft-zhu-idr-bgp-ls-pa… Susan Hares
- Re: [Idr] WG Adoption for draft-zhu-idr-bgp-ls-pa… Jeff Tantsura
- Re: [Idr] WG Adoption for draft-zhu-idr-bgp-ls-pa… Susan Hares
- Re: [Idr] WG Adoption for draft-zhu-idr-bgp-ls-pa… Takuya Miyasaka
- Re: [Idr] WG Adoption for draft-zhu-idr-bgp-ls-pa… Dhruv Dhody
- Re: [Idr] WG Adoption for draft-zhu-idr-bgp-ls-pa… Ketan Talaulikar (ketant)
- Re: [Idr] WG Adoption for draft-zhu-idr-bgp-ls-pa… Jeff Tantsura
- Re: [Idr] WG Adoption for draft-zhu-idr-bgp-ls-pa… Les Ginsberg (ginsberg)
- Re: [Idr] WG Adoption for draft-zhu-idr-bgp-ls-pa… Jeff Tantsura
- [Idr] 答复: WG Adoption for draft-zhu-idr-bgp-ls-pa… Huzhibo
- Re: [Idr] WG Adoption for draft-zhu-idr-bgp-ls-pa… Ketan Talaulikar (ketant)
- Re: [Idr] WG Adoption for draft-zhu-idr-bgp-ls-pa… Wanghaibo (Rainsword)
- Re: [Idr] 答复: WG Adoption for draft-zhu-idr-bgp-l… Robert Raszuk
- Re: [Idr] WG Adoption for draft-zhu-idr-bgp-ls-pa… Les Ginsberg (ginsberg)
- [Idr] 答复: WG Adoption for draft-zhu-idr-bgp-ls-pa… Huzhibo
- Re: [Idr] WG Adoption for draft-zhu-idr-bgp-ls-pa… Susan Hares
- Re: [Idr] WG Adoption for draft-zhu-idr-bgp-ls-pa… Susan Hares
- Re: [Idr] WG Adoption for draft-zhu-idr-bgp-ls-pa… Ketan Talaulikar (ketant)
- Re: [Idr] WG Adoption for draft-zhu-idr-bgp-ls-pa… Jeff Tantsura
- Re: [Idr] [Lsr] WG Adoption for draft-zhu-idr-bgp… Gyan Mishra
- Re: [Idr] [Lsr] WG Adoption for draft-zhu-idr-bgp… Chengli (Cheng Li)