Strategic routing
Strategic refers to the IP packet routing is the network administrator based on a number of strategies need to set the main basis for the routing. For example, we can have such a strategy: "All come straight from the packet network A, select the X path; other options Y path", or "all of the packets TOS for A to choose the path of F; other elections are the path of K".
Cisco's network operating system (Cisco IOS) from 11.0 to start the introduction of new strategic routing mechanism. And Linux kernel 2.1 is the introduction of strategic routing mechanism. Strategic routing mechanism and compared to the traditional routing algorithm is the introduction of a number of routing table, as well as the concept of rules.