Re: [Lsr] Regarding SRv6 SID Structure Sub-Sub-TLV in draft-ietf-lsr-isis-srv6-extensions
Peter Psenak <ppsenak@cisco.com> Mon, 22 June 2020 12:42 UTC
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To: "Chengli (Cheng Li)" <c.l@huawei.com>, "draft-ietf-lsr-isis-srv6-extensions@ietf.org" <draft-ietf-lsr-isis-srv6-extensions@ietf.org>
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From: Peter Psenak <ppsenak@cisco.com>
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Date: Mon, 22 Jun 2020 14:42:47 +0200
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Subject: Re: [Lsr] Regarding SRv6 SID Structure Sub-Sub-TLV in draft-ietf-lsr-isis-srv6-extensions
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Cheng, On 22/06/2020 13:50, Chengli (Cheng Li) wrote: > Hi authors, > > When I read the document, I noticed that the format of the SRv6 SID > Structure Sub-Sub-TLV has no reserved bits, which may bring troubles for > future extensions. what bits do you need? > > What if new architecture of SID is proposed? We have to introduce a new > SID structure TLV. But actually a backward-compatible format design of > this TLV can solve this kind of problems. new architecture of SID is proposed, we will add what is needed. thanks, Peter > > IMHO, if we introduced 16 bits reserved bits after the Length, then the > length aligns with 64 bits and the future SID structure can be supported. > > Thanks, > > Cheng >
- [Lsr] Regarding SRv6 SID Structure Sub-Sub-TLV in… Chengli (Cheng Li)
- Re: [Lsr] Regarding SRv6 SID Structure Sub-Sub-TL… Peter Psenak