Internal routing protocol in gigabit CARNet network - selection and transition

The internal routing protocol in an autonomous system (AS) describes how the routers, devices of the third level of the OSI network model, establish mutual communication by sending notices on available network segments. The selection framework of IP routing protocols is determined by different parameters of theoretical and practical nature. A theoretical overview is given using the comparison of possibilities described in corresponding IETF RFC standards. Practical considerations relating to specifically determined conditions in a particular network, including the topology and interdependencies with other implemented technologies, additionally define the selection framework of a corresponding internal routing protocol. The selection of the internal protocol for the CARNet network (TCP/IP private WAN network), which was a component of the first stage in constructing the gigabit CARNet network, is dealt in this paper