CSE 80N Lecture Notes - Lecture 19: Open Shortest Path First, Nodeb, Routing Protocol
Document Summary
No quiz next wednesday (day before thanksgiving) Out on the internet, how do we route packets. More than one interface (actual connection to physical link) For each interface, there"s an associated ip address which is its connection to the. Routing protocol gets all information about getting from one place to another and comes up with the shortest path to get there. 32 bit ip means 4 billion ip addresses which is too much to go through. By keeping the range of addresses rather than the actual addresses. When looking for forwarding table entry for given destination address, use longest address prefix that matches destination address. Forwarding datagrams from incoming to outgoing link. All ip forwarding is directed by tables. Manually configuring router tables (static routing protocol) Collection of routers whose prefixes and routing policies are under common administrative control. Owned and separated by single administrative authority. Policy base: routers at edge of as exchange as numbers with each other.
