Re: [Netconf] New YANG PubSub drafts for NETCONF, RESTCONF, HTTP/2

Hi,

I support the feature in general as an optional addition to NETCONF or
RESTCONF.
I was looking at the details a bit, and I don't think it covers all YANG
operations
(such as insert, move, delete).

I am implementing a datastore replication protocol based on deltas
represented with YANG Patch.  This looks much more efficient in practice
than sending complete updates of resource representations to the client,
especially for delete, insert, and move.  You basically end up with PUT
instead of PATCH, with all the inefficiencies that involves.

I think the subscription and push control in the yang-push draft is great,
but the messages on the wire should be more efficient.

Andy

On Tue, Oct 27, 2015 at 12:22 PM, Kent Watsen <kwatsen@juniper.net> wrote:

>
> I think it important that whatever we do in NETCONF we can also do in
> RESTCONF.   To that end, I support the WG defining "yang-push” for both
> protocols.
>
> Actually, I’m a little surprised that we’re discussing this.  Maybe it’s
> just me, but when the WG adopted draft-ietf-netconf-yang-push, I thought
> that it would cover both protocols eventually.   Perhaps that a separate
> draft has been produced is another surprise here - do we really need
> another draft?
>
> Kent
>
> From: Netconf <netconf-bounces@ietf.org> on behalf of Susan Hares <
> shares@ndzh.com>
> Date: Tuesday, October 27, 2015 at 2:52 PM
> To: "'Eric Voit (evoit)'" <evoit@cisco.com>, "netconf@ietf.org" <
> netconf@ietf.org>
> Cc: 'Alia Atlas' <akatlas@gmail.com>
> Subject: Re: [Netconf] New YANG PubSub drafts for NETCONF, RESTCONF,
> HTTP/2
>
> NETCONF:
>
>
>
> These drafts is important to the I2RS pub/sub.   Is the RESTCONF draft
> going to be adopted (draft-voit-restconf-yang-push-00.txt)?
>
>
>
> It would be really helpful.
>
>
>
> Sue Hares
>
> I2RS WG chair
>
>
>
> *From:* Netconf [mailto:netconf-bounces@ietf.org
> <netconf-bounces@ietf.org>] *On Behalf Of *Eric Voit (evoit)
> *Sent:* Tuesday, October 13, 2015 11:37 PM
> *To:* netconf@ietf.org
> *Subject:* [Netconf] New YANG PubSub drafts for NETCONF, RESTCONF, HTTP/2
>
>
>
> There are a couple new drafts posted in NETCONF:
>
>
>
> (1)  Subscribing to YANG datastore push updates
>
> http://www.ietf.org/id/draft-clemm-netconf-yang-push-02.txt
>
> As per earlier NETCONF discussions
> <http://www.ietf.org/mail-archive/web/netconf/current/msg10432.html> we
> are expecting this draft to become draft-ietf-netconf-yang-push in the
> coming days (once the NETCONF charter is approved).  Look for an
> OpenDaylight client in the Beryllium release (Feb).
>
>
>
> (2) Restconf subscription and HTTP push for YANG datastores
>
> http://www.ietf.org/id/draft-voit-restconf-yang-push-00.txt
>
> Extends draft-clemm-netconf-yang-push in the following ways:
>
> ·     proposes Restconf subscription and push mechanisms to continuously
> stream information from YANG datastores over HTTP
>
> ·     provides a mechanism to support static subscriptions so that an
> operator can stream updates over HTTP without Restconf
>
> ·     provides YANG model extensions to leverage HTTP/2 so that
> individual subscriptions can get custom treatment via their own HTTP
> streams.
>
>
>
> Thanks for your interest, and we look forward to the discussions!
>
>
>
> - Alexander Clemm, Eric Voit, Alberto Gonzalez Prieto, Ambika Prasad
> Tripathy, & Einar Nilsen-Nygaard
>
>
>
>
>
>
>
>
>
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