[net2-wg] Network level names and mapping

[Rodrigo Fonseca]

Hi Om,

I will check in today a version of the TreeRoutingEngineImplP.

On 4/24/06, Omprakash Gnawali <gnawali at usc.edu> wrote:
>
> I have checked in a skeleton of LE: collection/LinkEstimatorP.nc. As
> soon as these two issues are cleared up I will fill in the code. Right
> now I am keeping the file short.
>
> 1. How should LE tell the routing engine the incoming link id? I am
> assuming that the we decided that LE will provide send/receive
> interfaces to be used by the routing engine for control messages.

That's right. So this interface adds its LE header. I think the best
way is for it to provide, alongside with AMPacket and Packet, a
LinkSrcPacket interface:

interface LinkSrcPacket {
      command am_addr_t getSrc(message_t* );
}

>
> 2. Is neighbortable exchange triggered using a command (as Phil's
> suggestion) or using some form of timer/mechanism internal to the LE?
>

So we decided against piggybacking this in the normal routing
exchanges? That is fine.
If so, I think the safest is to provide a command to do it. It is also
possible to provide the command and make it periodic, with the period
being a parameter for a generic module.
If the parameter is 0, it means no periodic exchange.


> Thanks.
>
> > I've checked in a completed ForwardingEngineP. It now handles packet
> > forwarding, etc.
> >
> > If the link layer does not support acknowledgments, then
> > ForwardingEngineP does not provide reliability. If it does, then
> > ForwardingEngineP does not stop forwarding a packet until it receives an
> > acknowledgment.
> >
> > Comments/questions welcome.
> >
> > Kyle is going to start working on the upper interfaces, where you can
> > instantiate collection clients, etc. What's the status with the LE and
> > routing engine?
> >
> > Phil
> >
> >
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