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Re: [Netconf] subscription-id management across applications

Juergen Schoenwaelder <j.schoenwaelder@jacobs-university.de> Mon, 09 July 2018 16:31 UTC

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Date: Mon, 09 Jul 2018 18:31:44 +0200
From: Juergen Schoenwaelder <j.schoenwaelder@jacobs-university.de>
To: Andy Bierman <andy@yumaworks.com>
Cc: Netconf <netconf@ietf.org>
Message-ID: <20180709163144.x3ltgh7spzbz26km@anna.jacobs.jacobs-university.de>
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Subject: Re: [Netconf] subscription-id management across applications
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On Mon, Jul 09, 2018 at 09:12:57AM -0700, Andy Bierman wrote:
> Hi,
> 
> The configured subscriptions use a uint32 subscription-id.
> There is text in 5.2 about splitting the range for dynamic and configured
> subscriptions:
> 
>    To support deployments including both configured and dynamic
>    subscriptions, it is recommended to split subscription identifiers
>    into static and dynamic halves.  That way it eliminates the
>    possibility of collisions if the configured subscriptions attempt to
>    set a subscription-id which might have already been dynamically
>    allocated.  A best practice is to use lower half the "identifier"
>    object's integer space when that "identifier" is assigned by an
>    external entity (such as with a configured subscription).  This
>    leaves the upper half of subscription identifiers available to be
>    dynamically assigned by the publisher.

Why would a server accept a dynamic subscription that clashes with
a configured subscription?

/js

-- 
Juergen Schoenwaelder           Jacobs University Bremen gGmbH
Phone: +49 421 200 3587         Campus Ring 1 | 28759 Bremen | Germany
Fax:   +49 421 200 3103         <https://www.jacobs-university.de/>

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