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Presentation of the UN Network
Before getting to the technical description of the various components of the UN Network, it is good we have an overview of the disposition of the network.
A network refers to a physical and logical grouping of nodes (computers, printers etc) for effective sharing and management of resources. In particular, a Local Area Network refers a network in a geographically confined area. A Wide Area Network (WAN) will refer to Individual LANs located in separate buildings dispersed across multiple sites connected together using either radio waves, optical fibers or VSAT links.
The UN Campus Network is comprised of individual LANs in separate buildings linked together by radio waves. The connection with the outside world is handled by a state-of-the-art SCPC/DVB VSAT gateway, which provides IP connectivity to the UN Network for both data and voice traffic.
The Campus can be divided into four major “Sites”. For convenience, we will consider a site as being defined by a set of computers in one or more IP subnets.
The layout below shows the different sites in the UN Campus.
