Initialization - network layer and routing , Computer Networking

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Initialization 

Imagine that  all routers in our  sample internetwork  comes up  at the  same time. Each router sends a greeting packet to its  neighbours to find  out the  state  of each link. It then  prepares an LSP based on  results of these greeting  and floods the network  with it. Figure  shows this  process  for router. The same step are performed  by ever  router  in the router  in the network  as each come up.


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