SyncServer S100

SNMP

Simple Network Management Protocol is the Internet standard protocol for network management software. It monitors devices on the network, and gathers device performance data for management information (data)bases (“MIB”).

Solar Time

Time based on the revolution of the earth around the sun.

SSL

Secure Sockets Layer, a protocol that allows secure communications on the World Wide Web/Internet.

SSL Client Authentication

Part of the SSL “handshake” process, when the client responds to server requests for a key.

SSL-LDAP

Secure Sockets Layer-Lightweight Directory Access Protocol.

SSL Server Authentication

Part of the SSL “handshake” process, when the server informs the client of its certificate (and other) preferences.

Stratum Levels

These are standards set using the Network Time Protocol RFC 1305. The highest level are Stratum 0 devices such as GPS, which get their time from a primary time source such as a national atomic clock. Stratum 1 servers source their time from a Stratum 0 device. Stratum 2 and beyond obtain their time from Stratum 1 servers. The further removed in stratum layers a network is from a primary source, the greater the chance of signal degradations due to variations in communications lines and other factors.

Sysplex Timer

The Sysplex Timer provides a synchronized Time-of-Day clock for multiple attached computers.

TCCert

Time Calibration Certificate

TCP/IP

A mainstay of the Internet, the Transmission Control Protocol (TCP) provides dependable communication and multiplexing. It is connection-oriented, meaning it requires that a connection be established data transfer. It sits on top of the Internet Protocol (IP), which provides packet routing. This is connectionless, meaning each data packet has its source and destination data embedded, so it can bounce around a network and still get to its destination.

Telnet

Telnet is a terminal emulation application protocol that enables a user to log in remotely across a TCP/IP network to any host supporting this protocol. The keystrokes that the user

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S100 User Guide – Rev. D – June 2005

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Symmetricom S100 manual Snmp, Ssl-Ldap, Tcp/Ip