Enterasys atx Betriebsanweisung

D-20

Glossary

opposed to those automatically “learned” by the bridge).

A protocol which ensures that only one path will be used between 
two devices; prevents active loops (multiple paths to devices) by 
closing certain paths. With STP operating, a redundant link serves 
as a backup link only if a normal path fails.

The smallest signaling element used by the MAC sublayer. Each 
symbol corresponds to a specific sequence of code bits to be 
transmitted by the physical layer.

A transmission technique in which an uninterrupted block of data 
is transmitted, using no redundant information such as stop and 
start bits to identify the beginning and end of a unit of data.

Internetworking protocols sometimes referred to as the Internet 
suite of protocols.

A timer that controls the amount of time a station on a token 
passing network may hold the token in order to transmit data.

A unique symbols that circulates around a network ring following 
a data transmission. The token lets stations know when they can