beautypg.com

Interlogix NS3702-24P-4S User Manual User Manual

Page 401

background image

401

strong authentication or guarantee confidentiality (Wikipedia).

SSM

SSM In SyncE this is an abbreviation for Synchronization Status Message and is containing a QL indication.

STP

S

panning Tree Protocol is an OSI layer-2 protocol which ensures a loop free topology for any bridged LAN. The original

STP protocol is now obsoleted by RSTP.

SyncE

SyncE Is an abbreviation for Synchronous Ethernet. This functionality is used to make a network 'clock frequency'

synchronized. Not to be confused with real time clock synchronized (IEEE 1588).

T

TACACS+

TACACS+ is an acronym for Terminal Acess Controller Access Control System Plus. It is a networking protocol which

provides access control for routers, network access servers and other networked computing devices via one or more

centralized servers. TACACS+ provides separate authentication, authorization and accounting services.

Tag Priority

Tag Priority is a 3-bit field storing the priority level for the 802.1Q frame.

TCP

TCP is an acronym for Transmission Control Protocol. It is a communications protocol that uses the Internet Protocol (IP) to

exchange the messages between computers.

The TCP protocol guarantees reliable and in-order delivery of data from sender to receiver and distinguishes data for

multiple connections by concurrent applications (for example, Web server and e-mail server) running on the same host.

The applications on networked hosts can use TCP to create connections to one another. It is known as a

connection-oriented protocol, which means that a connection is established and maintained until such time as the message

or messages to be exchanged by the application programs at each end have been exchanged. TCP is responsible for

ensuring that a message is divided into the packets that IP manages and for reassembling the packets back into the

complete message at the other end.

Common network applications that use TCP include the World Wide Web (WWW), e-mail, and File Transfer Protocol

(FTP).

TELNET