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, [email protected] 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/
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