G

Gateway Device that can interconnect networks with different, incompatible communications protocols. The gateway performs a layer-7 protocol-conversion to translate one set of protocols to another (for example, from TCP/IP to SNA or from TCP/IP to X.25). A gateway operates at Open Systems Interconnection (OSI) layers up through the Session Layer. Contrast bridge and router.

GGP (Gateway-to-Gateway Protocol) MILNET protocol that uses distributed shortest path algorithm to control how core gateways (or routers) should exchange access and routing information.

GIF Graphics Interchange Format - an image file format.

Gopher A network based versatile menu-driven information service.

GOSIP (Government Open Systems Interconnection Profile) U.S. government version of the OSI protocols. GOSIP compatibility is a requirement in government networking purchases.

Gbps Giga Bits per Second (equivalent to 1,000 Mbps)

GUI Graphic User Interface