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Re: [Dime] [dime] #45: Why is a validity duration of 0 disallowed?

Jouni Korhonen <jouni.nospam@gmail.com> Mon, 10 February 2014 11:12 UTC

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From: Jouni Korhonen <jouni.nospam@gmail.com>
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Date: Mon, 10 Feb 2014 13:12:08 +0200
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Subject: Re: [Dime] [dime] #45: Why is a validity duration of 0 disallowed?
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On Feb 7, 2014, at 11:54 PM, dime issue tracker <trac+dime@trac.tools.ietf.org> wrote:

> #45: Why is a validity duration of 0 disallowed?
> 
> Section 4.5 disallows a validity duration of zero. Why do we want to
> disallow that? It would allow a quick way of ending any existing overload
> condition without worrying about the semantics of the abatement algorithm.
> (We currently use a reduction percentage of zero to end an overload
> condition--but that's specific to the loss algorithm and might not make
> sense for all future ones.)

Right. Avoiding two ways of ending overload condition was the reason.
I am OK to have validity duration 0 as an additional method ending the
overload condition based on the reasoning above.

- Jouni



> 
> Note that setting an expiration time to zero is the standard way of
> removing state in several other protocols (e.g. SIP).
> 
> -- 
> -------------------------+-------------------------------------------------
> Reporter:               |      Owner:  draft-docdt-dime-
>  ben@nostrum.com        |  ovli@tools.ietf.org
>     Type:  defect       |     Status:  new
> Priority:  minor        |  Milestone:
> Component:  draft-       |    Version:  1.0
>  docdt-dime-ovli        |   Keywords:
> Severity:  Active WG    |
>  Document               |
> -------------------------+-------------------------------------------------
> 
> Ticket URL: <http://trac.tools.ietf.org/wg/dime/trac/ticket/45>
> dime <http://tools.ietf.org/wg/dime/>
>

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