[ndnSIM] Setting up link metric

[Spyridon (Spyros) Mastorakis]

Hi Ahmed,

the first case refers to the establishment of a route that may be used for Interest forwarding. Specifically, the FibHelper will add the appropriate FIB entries on the routers across the specified path.

The second case refers to the physical properties (bandwidth, delay, queue size) of a link between two adjacent nodes.

Hope that this helps. Please let me know if you have any follow-up questions.

Spyridon (Spyros) Mastorakis
Personal Website: http://cs.ucla.edu/~mastorakis/ <http://cs.ucla.edu/~mastorakis/>
Internet Research Laboratory
Computer Science Department
UCLA




> On Feb 16, 2016, at 3:48 AM, Ahmed Sadek <don1559 at gmail.com> wrote:
> 
> Dear All,
> 
> What is the difference between setting up the metric in the simulation file :
> ndn::FibHelper::AddRoute("client", "/", "router1", 150);
> 
> Or in the topology file:
> # srcNode   dstNode     bandwidth   metric  delay   queue
> client      router1       20Mbps 	150		50ms	50 
> 
> And which one take priority?
> 
> Thanks!
> Ahmed
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