Multi-topology on an IPv4 network enables devices to allocate network resources more effectively.
On traditional IP networks, only one unicast forwarding table is available on the forwarding plane because only one unicast topology exists, which forces services transmitted from one router to the same destination address to share the same next hop, and various end-to-end services, such as voice and data services, to share the same physical links. As a result, some links may be heavily congested while others remain relatively idle. Deploying MT (different logical topologies) for different services on a physical network can solve the problem.
Before configuring IPv4 Multi-Topology, complete the following task:
Configure parameters of the link layer protocol and IPv4 addresses for interfaces and ensure that the link layer protocol on the interfaces is Up.
The system view is displayed.
A topology is created.
The view of the specified interface is displayed.
The topology is bound to the interface.
The configuration is committed.