[c-nsp] ISIS/OSPF covergence & ISIS packets authentication

[Suzan S.]

Dears,
   
  What are the commands used for fast convergence for the ISIS & OSPF when link fails, adjacency rebuild with less CPU, bandwidth & recalculation.
   
  For the ISIS authentication when to use the domain & area password commands , how to authenticate adjacency & how to authenticate the ISIS packets.
   
  Thank you
  Suzan

       
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