Re: Session Routing?

[Haobo Yu <haoboy@ISI.EDU>]

If memory serves me right, I think session routing can handle topology
dynamics (i.e., links up and down), and the paragraph meant that (1) there
will be transient partition, which is what dynamics is meant for, and (2)
routing will heal. 

- Haobo

On Thu, 23 Sep 1999, K Sun wrote:

> Hello,
>     I have a little confusion about Session Routing.
> In Page 147 (Ns Notes and Documentation), there are some words about 
> Sesssion Routing:
> 1. "If the topology changes while the simulation is in progress, then 
> some sources and destinations may become unreachable from each other".
> 2. "However,  it will also run th same algorithm to recompute routes in 
> the event that the topology changes during the course of simulation."
> 
> >From 1, it implies, just because the routes can not be changed in time, 
> there are some sources and destinations unreachable.
> >From 2, it implies the routes can be changed while the topology is 
> changed. 
> I do not know it clearly. 
> Or it means, there is only a very small interval in which there are 
> some nodes unreachable?
> 
> Thanks,
> 
> Sun Kai
>  
> 
> 
> 
>