OSPF Multitopology Routing (MT-OSPF)

Multitopology Routing OSPF (MT-OSPF) enables you to define multiple topologies and to configure topology-specific metrics for individual links as well as to exclude individual links from specific topologies. As a result, you can use a single instance of OSPF to carry connectivity and IP reachability information for different topologies. Information for different topologies is used to calculate independent shortest-path-first (SPF) trees and routing tables.