User’s Manual
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
Spanning 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 Access 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
TELNET is an acronym for TELetype NETwork. It is a terminal emulation protocol that uses the Transmission Control
Protocol (TCP) and provides a virtual connection between Telnet server and Telnet client.
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