Re: [lisp] Comments to draft-boucadair-lisp-multiple-records-00

[Dino Farinacci <[e-mail]>]

> Hi Dino, 
> 
> Thank you for the comment. 
> 
> There is a provision in RFC6830 to support multiple RLCOs/EIDS but without specifying the behavior.

Right, I already said that.

> As you know, that RFC is crystal clear about that.

RFC6830 or your Internet Draft?

> Yes, I do think it is time to specify that behavior in the bis document.
> 
> Section 3 of draft-boucadair-lisp-multiple-records is an example of what can be considered in the bis document.

I’ll have a look at it. But what part of section 3? All the packet format descriptions are already in RFC6830. And you have this in section 3 which is semantically incorrect:



It is documented no where that a Map-Resolvers caching mappings. And if you are proposing that you need a lot more text to describe how mappings are kept up to date in the Map-Resolver. This is a major architectural change and really not sure you know the implications of it.

Map-Resolvers ONLY cache referral entries documented in the LISP-DDT RFC.

Also note, what if a Map-Request has both 10.1.1.1/32 and 10.1.0.0/16 encoded as EID records. And if the mapping system has registered 10.0.0.0/8, then does the Map-Reply contain two records to satisfy 10.1.1.1/32 AND 10.1.0.0/16, or just one EID record. And if so, how does the requestor know that the one reply record is associated with both request records or one doesn’t apply (or is not found in the mapping system).

As you can see there is a lot of text that would need to be written. Which I think is too late for RFC6833bis. That is why I asked you for text. I wanted to see how coarse versus detail your text would be and then have the WG judge if it should go in.

Then there is the practical aspect. What are you trying to accomplish with multiple EID-records in a Map-Request. Let’s start there.

Dino

> 
> Thank you.
> 
> Cheers,
> Med
> 
>> -----Message d'origine-----
>> De : lisp [mailto:[e-mail]] De la part de Dino Farinacci
>> Envoyé : lundi 9 octobre 2017 18:56
>> À : [e-mail] list
>> Objet : [lisp] Comments to draft-boucadair-lisp-multiple-records-00
>> 
>> Med/Christian, RFC6830 already supports multiple EID-records in both Map-
>> Requests and Map-Replies (as well as Map-Notify messages). If you think it
>> is not specified sufficiently, now is the time to add a better explanation
>> to RFC6833bis.
>> 
>> Dino
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