Appendix B: Glossary
EIA (Electronic Industries Association)
Organization that sets standards for electrical interfaces (connectors).
encapsulation
A method for moving messages across networks that use different types of protocols. The message is encapsulated (rather than translated), so it can move across a network that otherwise could not understand its protocol. Encapsulating bridges and switches generally use proprietary encapsulation schemes.
encode
To translate data into a series of electrical or optical pulses that can travel efficiently over a cable or other medium.
entity
An active element within an Open Systems Interconnection (OSI) network layer or sublayer.
extended LAN
A collection of LANs interconnected by
filter
An instruction to the FN10 to discard certain types of data packets.
filtering rate
A measure (in packets per second) of the FN10’s efficiency in examining each frame, comparing it with an address table, and then deciding whether to discard the frame or forward it.
forwarding rate
The rate (in packets per second) at which the FN10 can receive a stream of packets from one network segment, complete all processing, and transmit the packets to another network segment.
frame
A data message that includes a source address, destination address, data, frame check sequence (FCS), and control information.
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