Lecture #3 OSPF Asst.Prof. Dr.Anan Phonphoem Department of Computer Engineering, Faculty of...
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Lecture #3 OSPF Asst.Prof. Dr.Anan Phonphoem Department of Computer Engineering, Faculty of Engineering, Kasetsart University, Bangkok, Thailand
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Transcript of Lecture #3 OSPF Asst.Prof. Dr.Anan Phonphoem Department of Computer Engineering, Faculty of...
Lecture #3 OSPF
Asst.Prof. Dr.Anan Phonphoem
Department of Computer Engineering,
Faculty of Engineering, Kasetsart University,
Bangkok, Thailand
Outline
Distance VS. Link-State Route selection Link-State network (OSPF) Link-State Operation Basic OSPF configuration and verification
Cost (weight) in link state routing
Cost is applied only by routerCost is applied when packet leaves the router
Shortest path tree
Build the tree, start by identifying a root
attach all reached nodes Compare arcs and find the lowest cost
add this node (to be permanent) and
its arcs (temp) Examine database and identify the reachable node Repeat the last two steps