Re: [lmap] draft-ietf-lmap-information-model-05: Controller timeout

[Juergen Schoenwaelder <[e-mail]>]

On Mon, May 11, 2015 at 07:08:47PM +0000, Carey, Timothy (Timothy) wrote:
> Team,
> 
> I was reviewing draft-ietf-lmap-information-model-05 and had a question on the
> ma-controller-lost-timeout:  A timer is started after each successful contact with a controller.  When the timer reaches the controller-lost-timeout, all schedules will be disabled.
> 
> We changed this from a threshold to a timeout but the data type is still an <int> and there are not units assigned to the timeout (e.g., milliseconds, seconds).
> 
> Also the description is vague - When we mean schedules disabled - so we mean administratively or operationally? In other words - does it take an explicit action from the controller to reenable the schedule or simply the next contact. Also is this the schedules that are disabled or scheduled tasks.
> 
> I would assume the timeout would be in seconds and we should change the data type to unsignedInt unless of course a negative number has some meaning?
> 

I agree this is under-defined. We generally have only used 'int' and
we did not make a distinction between int and unsigned so I would
leave that alone (or we have to make changes in multiple places).

What about this rewrite:

   ma-controller-lost-timeout:  A timer is started after each successful
                             contact with a controller.  When the timer
                             reaches the controller-lost-timeout
                             (measured in seconds), all schedules will
                             be disabled, i.e., no new schedules will be
                             executed (and hence no new tasks started).
                             The disabled schedules will be reenabled
                             automatically once contact with a
                             controller has been established
                             successfully again.

/js

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