Siemens V1.2.33 manual Lan, Ldap, Lcd, Led

Abbreviations and Technical Terms

Kerberos

Kerberos is an authentication mechanism. This security system uses sym- metric, cryptographic encryption procedures to provide secure authentica- tion in TCP/IP data traffic.

The Kerberos program is used to encrypt private data and eliminates the interception or falsification of keys or data by coding the information using the DES algorithm. The private keys are stored on the Kerberos server which is responsible for generating and distributing the session key and for activating the resources.

LAN

Abbreviation of "Local Area Network."

Layer 2

Layer 2 (data link layer) in the seven-layer OSI model for describing data transmission interfaces.

Layer 2 contains the so-called network access protocol in the LAN. This protocol controls the access mechanism (for example CSMA/CD in Ether- net) and MAC addressing.

Layer 3

Layer 3 (network layer) in the seven-layer OSI model for describing data transmission interfaces.

Layer 3 contains the network protocol, for example IP (Internet Protocol). This can route data packets accurately on the basis of the address. Devices that perform this task are known as routers.

LDAP

Abbreviation of "Lightweight Directory Access Protocol." Simplified protocol for accessing standardized directory systems, for example, a company directory.

LCD

Abbreviation of "Liquid Crystal Display."

Digits, text or graphics display with liquid crystal technology.

LED

Abbreviation of "Light Emitting Diode."

Cool-light lamp with low power consumption and a range of colors.

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