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Glossary<br />

Remote Monitoring (RMON)<br />

RMON provides comprehensive network monitoring capabilities. It eliminates the<br />

polling required in standard SNMP, and can set alarms on a variety of traffic<br />

conditions, including specific error types.<br />

Rapid Spanning Tree Protocol (RSTP)<br />

RSTP reduces the convergence time for network topology changes to about 10% of<br />

that required by the older IEEE 802.1D STP standard.<br />

Secure Shell (SSH)<br />

A secure replacement for remote access functions, including Telnet. SSH can<br />

authenticate users with a cryptographic key, and encrypt data connections between<br />

management clients and the switch.<br />

Simple Network Management Protocol (SNMP)<br />

The application protocol in the Internet suite of protocols which offers network<br />

management services.<br />

Simple Network Time Protocol (SNTP)<br />

SNTP allows a device to set its internal clock based on periodic updates from a<br />

Network Time Protocol (NTP) server. Updates can be requested from a specific NTP<br />

server, or can be received via broadcasts sent by NTP servers.<br />

Spanning Tree Algorithm (STA)<br />

A technology that checks your network for any loops. A loop can often occur in<br />

complicated or backup linked network systems. Spanning Tree detects and directs<br />

data along the shortest available path, maximizing the performance and efficiency of<br />

the network.<br />

Telnet<br />

Defines a remote communication facility for interfacing to a terminal device over<br />

TCP/IP.<br />

Terminal Access Controller Access Control System Plus (TACACS+)<br />

TACACS+ is a logon authentication protocol that uses software running on a central<br />

server to control access to TACACS-compliant devices on the network.<br />

Transmission Control Protocol/Internet Protocol (TCP/IP)<br />

Protocol suite that includes TCP as the primary transport protocol, and IP as the<br />

network layer protocol.<br />

Trivial File Transfer Protocol (TFTP)<br />

A TCP/IP protocol commonly used for software downloads.<br />

Glossary-5

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