Re: [Netconf] Anyone want just Configured Subscriptions?

[Juergen Schoenwaelder <[e-mail]>]

On Tue, Jul 10, 2018 at 08:37:30PM +0000, Kent Watsen wrote:
> 
> 
> > So in short, after RFC 8071 call home, you get NC/RC client and server
> > starting with a <hello> exchange. Ideally, the client would indicate
> > its readiness to receive unsolicited notifications before you push
> > notifications to the client (and the notification sender may even be
> > interested to know that it is sending notifications to a remote system
> > that does not just drop them). So either the clients invokes an RPC to
> > start the notification flow or, if you want to optimize one round
> > trip, the client includes a special
> >
> >  :willing-to-receive-unsolicited-notifications
> >
> > capability in the <hello> exchange.
> 
> I agree that a client-advertised capability would be goodness here, but
> it only works for NC-clients, there is no corollary for RC-clients.  
> 
> Maybe clients should send a "willing-to-receive-unsolicited-notifications"
> RPC instead?

RFC 8040 (RESTCONF) uses SSE and the client has to fetch an event
stream resource in order to receive events (section 6.3). This is not
a big surprise since HTTP 1/1 is purely client driven. This in fact
implies that the client knows the event stream resource.

/js

-- 
Juergen Schoenwaelder           Jacobs University Bremen gGmbH
Phone: [phone]         Campus Ring 1 | 28759 Bremen | Germany
Fax:   [phone]         <https://www.jacobs-university.de/>