The Distributed Logical Router
The whole purpose of routing is to process the packets between two different IP networks. Let's discuss the fundamentals of routing before getting into logical routers. Every router will build a routing table, which will have information about destination network, next hop router, metrics, and administrative distance. There are two methods of building a routing table:
Static routing: Static routing is manually created and updated by a network administrator. Based on the network topology, we will be in need of configuring a static route on each and every router for end-to-end network connectivity. Even though this gives full control over the routing, it would be an extremely tedious job to configure routes on a large network.
Dynamic routing: Dynamic routing is created and updated by a routing protocol running on a router; Routing Information Protocol (RIP) and Open Shortest Path First (OSPF) are some examples. Dynamic routing protocols are intelligent enough...
