Re: [lisp] Request for WG document - draft-farinacci-lisp-name-encoding
"Joel M. Halpern" <jmh@joelhalpern.com> Fri, 02 October 2020 18:51 UTC
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To: Dino Farinacci <farinacci@gmail.com>
Cc: Luigi Iannone <ggx@gigix.net>, "lisp@ietf.org list" <lisp@ietf.org>
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From: "Joel M. Halpern" <jmh@joelhalpern.com>
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Date: Fri, 02 Oct 2020 14:51:08 -0400
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Archived-At: <https://mailarchive.ietf.org/arch/msg/lisp/0ogprLTTMiUuHeA8oZ7mmGaw0lo>
Subject: Re: [lisp] Request for WG document - draft-farinacci-lisp-name-encoding
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If you want to define it as always doing a strict LPM string match on ASCII,that would as you say be well-defined. It is not what the document says. And it would not solve the collision problem at all. Yours, Joel On 10/2/2020 2:44 PM, Dino Farinacci wrote: >> The design of LISP explicitly separates the Mapping system from the Itr/EtR. Which means that the "IT Manager configuring xTRs) does not get to define how the mapping system works. > > Right, agree, and I didn't say that. > >> And if there are undefined variations in how it works for AFI=17, then we have not achieved interoperability. > > There isn't. It works exactly like an IPv4 or IPv6 lookup. > >> And if there are potential interactions between different uses of AFI=17, then we again have a problem. > > There isn't for a given use-case within a given instance-ID. Just like VLANs, VRFs, etc. We are not inventing anything new here. We solely want to encode ascii strings. > >> If you want to define that AFI-17 is always and only used along with instance-ID, then you solve PART of the problem. But not all > > Its an EID encoding that can or not go inside an Instance-ID LCAF. And when used as an RLOC, there is no instance-ID relationship. > >> of it. If different uses of the AFI clash, then we are creating problems even for a single adminstration using it under a single instance. > > IP addresses can clash. We use the same rules for avoiding IP EID clashes as AFI=17 clashes. I mentioned this already in a previous email to you. > >> And from where I sit, the LISP working group is not chartered to provide a generic string based key-value store. > > Look at it this way. Should the IS-IS working group not create hostnames to map LSPIDs to names? Allowing this makes it infinitely simpler to manage the system. > > This proposal is extremely popular. Ask network operators about IS-IS hostnames. This is the same thing. It really is. > > Dino >
- [lisp] Request for WG document - draft-farinacci-… Dino Farinacci
- Re: [lisp] Request for WG document - draft-farina… Dino Farinacci
- Re: [lisp] Request for WG document - draft-farina… Sharon
- Re: [lisp] Request for WG document - draft-farina… Lori Jakab (lojakab)
- Re: [lisp] Request for WG document - draft-farina… Albert López
- Re: [lisp] Request for WG document - draft-farina… Joel M. Halpern
- Re: [lisp] Request for WG document - draft-farina… Albert López
- Re: [lisp] Request for WG document - draft-farina… Dino Farinacci
- Re: [lisp] Request for WG document - draft-farina… Joel M. Halpern
- Re: [lisp] Request for WG document - draft-farina… Dino Farinacci
- Re: [lisp] Request for WG document - draft-farina… Joel M. Halpern
- Re: [lisp] Request for WG document - draft-farina… Dino Farinacci
- Re: [lisp] Request for WG document - draft-farina… Joel M. Halpern
- Re: [lisp] Request for WG document - draft-farina… Dino Farinacci
- Re: [lisp] Request for WG document - draft-farina… Dino Farinacci
- Re: [lisp] Request for WG document - draft-farina… Dino Farinacci
- Re: [lisp] Request for WG document - draft-farina… Luigi Iannone
- Re: [lisp] Request for WG document - draft-farina… Luigi Iannone
- Re: [lisp] Request for WG document - draft-farina… Dino Farinacci
- Re: [lisp] Request for WG document - draft-farina… Dino Farinacci
- Re: [lisp] Request for WG document - draft-farina… Joel M. Halpern
- Re: [lisp] Request for WG document - draft-farina… Dino Farinacci
- Re: [lisp] Request for WG document - draft-farina… Joel M. Halpern
- Re: [lisp] Request for WG document - draft-farina… Dino Farinacci
- Re: [lisp] Request for WG document - draft-farina… Joel Halpern Direct
- Re: [lisp] Request for WG document - draft-farina… Dino Farinacci
- Re: [lisp] Request for WG document - draft-farina… Joel M. Halpern
- Re: [lisp] Request for WG document - draft-farina… Dino Farinacci