[Nsi-wg] Message Delivery Layer

[Jeroen van der Ham]

Hi,


On 6 Dec 2012, at 16:26, Inder Monga <imonga at es.net> wrote:
> The MDL layer essentially handles the case when MTL fails to deliver a
> message. The scenario being, whichever reliable message transport layer or
> multiple of them below, tries to deliver the message end to end. In case
> the message does not reach after multiple retries, the error is handed to
> MDL layer (and yes it is logical). The MDL layer can have a different
> timeout, choose to deliver the message again or try a differnet mechanism.
> That is upto the implementor. This prevents the NSI state machine having to
> deal with message timeouts and retries at the application layer. It
> simplifies the state machine .
> 
> If there is more confusion lets have a skype call.


The use-case sounds reasonable.
The solution to me does not, basically you're saying:
We don't want to overcomplicate the state machine, so we add another layer. That layer will have another state machine.

I don't see how that simplifies things in this case.

Jeroen.