[Ns-bugs] [Bug 406] GlobalRouteManager behaviour after Ipv4 interface SetDown and SetUp procedure

[code@nsnam.ece.gatech.edu]

http://www.nsnam.org/bugzilla/show_bug.cgi?id=406





--- Comment #9 from Egemen <egemen.cetinkaya at gmail.com>  2008-11-12 14:06:05 EDT ---
(In reply to comment #6)
> > 
> > Attached is a patch that we used. I am not sure how sound this strategy is?
> > 
> > However, this does not help with the case where there are multiple paths
> > between a source destination pair. When one of the paths becomes unavailable,
> > we are not able to make the simulator use the alternative path with the global
> > routing manager.
> > 
> 
> The reason the patch will not completely work is that it doesn't delete the
> existing routes.  Try adding a loop that deletes everything first, before
> reinitializing things.
> 
> for (uint32_t i = 0; i < ipv4->GetNRoutes(); i++)
>   {
>     ipv4->RemoveRoute (i)
>   }
> 

We have couple of questions:

1-I am not sure where to implement above code partly due to lack of complete
picture of GlobalRouting implementation. 

2-Once the routes are removed, I guess we can rebuild the routes on all nodes
with BuildGlobalRoutingDatabase () and InitializeRoutes () methods. Is this
accurate?


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