Overview IRMP

The IRMP (Internal Routing Message Protocol), compatible with the Cisco EIGRP, is a dynamic routing protocol based on the distance vector. The IRMP uses the DUAL (Diffusing Update Algorithm) to calculate the route between multiple devices in parallel, ensuring no loop circuit and fast convergence. The IRMP overcomes the low convergence speed of distance vector-based routing protocol. Besides, it does not need the link status routing protocol to run the Dijkstra algorithm and the related databases do not consume huge CPU resources or memory.

The IRMP protocol applies to the medium- and small-size network and supports multiple autonomous systems. The autonomous systems can operate independently without interfering each other.