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Local Area High Speed Networks by Dr. Sidnie Feit

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O
Open Shortest Path First (OSPF)

A network routing protocol.

Open Systems Interconnect (OSI) model

A layered model for data communications, defined by an International Organization for Standardization committee.

optical time-domain reflectometer (OTDR)

An optical fiber test tool that locates fiber faults.

ordered set

A single special code-group or a combination of special and data code-groups that represent a signal such as an idle or the start of a frame.

organizationally unique identifier (OUI)

A 3-byte code assigned by the IEEE, usually for use as a MAC address prefix.

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