Biomedical Engineering Reference
In-Depth Information
join LANs together. The ECSA, a relatively new domestic standards organization, is involved in
defining network interconnection standards. An example of a significant ECSA protocol is the
Synchronous Optical Network (SONET) a very high-speed (in excess of 10 Gbps) optical
communications network.
The most significant protocol used on the Internet is TCP/IP, developed by the Defense Advanced
Research Project Agency (DARPA). The Transmission Control Protocol (TCP) component of the
standard defines rules for exchanging information with other Internet points at the packet level. In
addition, the Internet Protocol (IP) standard defines exchange of information at the Internet address
level. TCP/IP, the protocol that defines communications on the Internet, is a packet system. It is the
TCP component of the standard that defines how a message is broken down into packets, sized
appropriately, and then transmitted over the Internet.
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