Specifications

Physical Layer
Layer 1 of the OSI model. The layer concerned with electrical,
mechanical, and handshaking procedures over the interface
connecting a device to the transmission medium.
Port
The physical interface to a computer or multiplexer, for connection of
terminals and modems.
prompt
One or more characters in a command line interface to indicate that
the computer is ready to accept typed input.
Protocol
A formal set of conventions governing the formatting and relative
timing of message exchange between two communicating systems.
Pseudowire
Point-to-point connections set up to emulate (typically Layer 2) native
services like ATM, Frame Relay, Ethernet, TDM, or SONET/SDH over an
underlying common packet-switched network (Ethernet, MPLS or IP)
core. Pseudowires are defined by the IETF PWE3 (pseudowire
emulation edge-to-edge) working group.
Routing
The process of selecting the most efficient circuit path for a message.
Single Mode
Describing an optical wave-guide or fiber that is designed to
propagate light of only a single wavelength (typically 5-10 microns in
diameter).
Space
In telecommunications, the absence of a signal. Equivalent to a binary
0.
Sync
See Synchronous Transmission.
T1
A digital transmission link with a capacity of 1.544 Mbps used in North
America. Typically channelized into 24 DS0s, each capable of carrying
a single voice conversation or data stream. Uses two pairs of twisted
pair wires.
T3
A digital transmission link with a capacity of 45 Mbps, or 28 T1 lines.
Telnet
The virtual terminal protocol in the Internet suite of protocols. It lets
users on one host access another host and work as terminal users of
that remote host. Instead of dialing into the computer, the user
connects to it over the Internet using Telnet. When issuing a Telnet
session, it connects to the Telnet host and logs in. The connection
enables the user to work with the remote machine as though a
terminal was connected to it.
Throughput
The amount of information transferred through the network between
two users in a given period, usually measured in the number of
packets per second (pps).