SDN and NVF in support for making military networks more survivable

The paper discusses how Software Defined Networking (SDN) and Network Functions Virtualization (NFV) techniques can support survivability of military networks, both on the strategic / operational and tactical levels. In the introduction the term survivability has been described. Then the attention is paid to the possibilities of supporting the following situations: mobility of users (individual soldiers), network segments (entire military units at low levels of command), service mobility and recovery from the destruction of key network components. These article describes both the possibilities associated with the use of technologies widely adapted in the civil market and the challenges of using the technology in specific military applications.