O
Open Shortest Path First
A link- state (algorithm used by the router to determine the current topology of a network), Interior Gateway (distributes routing information between routers belonging to a single Autonomous System) routing protocol. This protocol's algorithm determines the shortest path from its router to all the other routers in the network. This protocol is rapidly replacing RIP on the Internet.
Open Systems Interconnection
OSI is a seven (7) layer architecture model for communications systems developed by the ISO for the interconnection of data communications systems. Each layer uses and builds on the services provided by those below it.
Operating System Application Programming Interface
OSAPI is a module within the System Support software that provides a set of interfaces to OS support functions.
OS
Operating System.
OSAPI
OSI
OSPF
