Re: [lisp] I-D Action: draft-ietf-lisp-pubsub-05.txt

["Joel M. Halpern" <[e-mail]>]

Thanks.  That will work fine.
Yours,
Joel

On 3/20/2020 5:50 AM, [e-mail] wrote:
> Hi Joel,
> 
> Good catch.
> 
> I think we just need to delete that second sentence. The behavior when pubsub is not supported is covered by this text:
> 
>     Upon receipt of the Map-Request, the Map-Server processes it as
>     described in [I-D.ietf-lisp-rfc6833bis].
> 
> The failure cases we wanted to cover are those in:
> 
>     The subscription of an xTR-ID to the list of subscribers for the EID-
>     Record may fail for a number of reasons.  For example, because of
>     local configuration policies (such as accept and drop lists of
>     subscribers), or because the Map-Server has exhausted the resources
>     to dedicate to the subscription of that EID-Record (e.g., the number
>     of subscribers excess the capacity of the Map-Server).
> 
> Cheers,
> Med
> 
>> -----Message d'origine-----
>> De : lisp [mailto:[e-mail]] De la part de Joel Halpern
>> Envoyé : jeudi 19 mars 2020 17:25
>> À : [e-mail]
>> Objet : Re: [lisp] I-D Action: draft-ietf-lisp-pubsub-05.txt
>>
>> I was reading this draft again to think about the questions Alberto
>> raised on the list.  In doing so, I came across something that I think
>> needs to be clarified.
>>
>> In section 5, I see the following two sentences:
>>    If the subscription fails, the Map-Server MUST send a Map-Reply to
>>    the originator of the Map-Request, as described in
>>    [I-D.ietf-lisp-rfc6833bis].  This is also the case when the Map-
>>    Server does not support PubSub operation.
>>
>> I understand the first sentence.  The second sentence appears to cover
>> two different cases.  One case is where the Map-Server understands
>> PubSub, but does not accept it.  Okay.  I can see an error in that
>> case.
>>    But, as written, this seems to be intended to apply to a Map-Server
>> that has never heard of the PubSub extension.  Such a Map-Server will
>> ignore the I bit and ignore the N bit.  It will not know that this is
>> a
>> PubSub request, and as such will not generate an error.  I have no
>> problem with generating an error in the known but not supported case.
>> Can we (when we revise the draft) clarify the text?
>> (It took me a little bit to realize that this text probably meant the
>> known but not supported case, as it was the unknown case that came to
>> mind first.)
>>
>> Yours,
>> Joel
>>
>> On 3/18/2020 8:50 PM, [e-mail] wrote:
>>>
>>> A New Internet-Draft is available from the on-line Internet-Drafts
>> directories.
>>> This draft is a work item of the Locator/ID Separation Protocol WG
>> of the IETF.
>>>
>>>           Title           : Publish/Subscribe Functionality for LISP
>>>           Authors         : Alberto Rodriguez-Natal
>>>                             Vina Ermagan
>>>                             Johnson Leong
>>>                             Fabio Maino
>>>                             Albert Cabellos-Aparicio
>>>                             Sharon Barkai
>>>                             Dino Farinacci
>>>                             Mohamed Boucadair
>>>                             Christian Jacquenet
>>>                             Stefano Secci
>>> 	Filename        : draft-ietf-lisp-pubsub-05.txt
>>> 	Pages           : 12
>>> 	Date            : 2020-03-18
>>>
>>> Abstract:
>>>      This document specifies an extension to the use of Map-Request
>> to
>>>      enable Publish/Subscribe (PubSub) operation for LISP.
>>>
>>>
>>> The IETF datatracker status page for this draft is:
>>> https://datatracker.ietf.org/doc/draft-ietf-lisp-pubsub/
>>>
>>> There are also htmlized versions available at:
>>> https://tools.ietf.org/html/draft-ietf-lisp-pubsub-05
>>> https://datatracker.ietf.org/doc/html/draft-ietf-lisp-pubsub-05
>>>
>>> A diff from the previous version is available at:
>>> https://www.ietf.org/rfcdiff?url2=draft-ietf-lisp-pubsub-05
>>>
>>>
>>> Please note that it may take a couple of minutes from the time of
>> submission
>>> until the htmlized version and diff are available at tools.ietf.org.
>>>
>>> Internet-Drafts are also available by anonymous FTP at:
>>> ftp://ftp.ietf.org/internet-drafts/
>>>
>>>
>>> _______________________________________________
>>> I-D-Announce mailing list
>>> [e-mail]
>>> https://www.ietf.org/mailman/listinfo/i-d-announce
>>> Internet-Draft directories: http://www.ietf.org/shadow.html
>>> or ftp://ftp.ietf.org/ietf/1shadow-sites.txt
>>>
>>
>> _______________________________________________
>> lisp mailing list
>> [e-mail]
>> https://www.ietf.org/mailman/listinfo/lisp