Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN: 9780133594140
Author: James Kurose, Keith Ross
Publisher: PEARSON
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Chapter 5, Problem R9RQ
Program Plan Intro

Open Shortest Path First (OSPF):

OSPF is a link state algorithm in which it measures the delay or cost of each router.

  • Each router in the network sends a packet with the corresponding timestamp. This timestamp measures the time of the packets traversed to and from a neighboring router.
  • After the router collected the link state packets from its neighbors, it constructs a routing table using Dijkstra’s least cost algorithm.
  • Thus, the OSPF works based upon the timestamp; if the node in the “Denver” is crashed then it passes the information more quickly to all other nodes in the network.

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