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Juniper Networks® Field Guide and Reference by Juniper Networks®, Cris Morris, Gary Drenan, Aviva Garrett

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Routing Protocols Concepts

Each IGP routing protocol maintains a database of the routing information it has learned from other routers running the same protocol and uses this information as defined and required by the protocol. IS-IS and OSPF use the routing information they received to maintain link-state databases, which they use to determine which adjacent neighbors are operational and to construct network topology maps. IS-IS and OSPF use the Dijkstra algorithm, and RIP uses the Bellman-Ford algorithm to determine the best route or routes (if there are multiple equal-cost routes) to reach each destination and installs these routes into the JUNOS software routing table.

The JUNOS software routing table is used by the routing protocol process ...

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