[Ns-developers] NS3: Integrating routing protocols into ns-3

[Mathieu Lacage]

a few comments below,

On Tue, 2007-06-19 at 19:28 +0100, Gustavo Carneiro wrote:

> My current concerns are:
>     1. Shouldn't the Add*Route methods return the route index, so that later
> I can retrieve it again with GetRoute?
> 
>     2. Related tot the above question, why not instead of returning an
> 'index' return a unique numeric identifier?  My concern here is that a route
> index is not stable, and becomes invalid as soon as routes are reordered,
> removed, or inserted.

That is the reason why the index is not returned from Add methods in 1)

>   It would be nice to enhance the ns-3 routing table so that i won't need a
> duplicate olsr table.  This is why I think it makes sense:
>    a) lookup-by-address is a simple algorithm that is unlikely to change
> regardless of routing protocol, so it might as well be exposed as a public
> method;
>    b) the olsr 'distance' field is equivalent to the 'metric' of e.g. a
> Linux routing table:

Maybe the "metric" is generic enough to be moved to the ip stack
forwarding table but, generally, I think that protocol-specific routing
table information should be kept separate from the ip stack forwarding
table. 

Mathieu