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Secure Shell (SSH)
A secure replacement for remote access functions, including Telnet. SSH can authenticate users
with a cryptographic key, and encrypt data connections between management clients and the
switch.
Simple Network Management Protocol (SNMP)
The application protocol in the Internet suite of protocols which offers network management
services.
Simple Network Time Protocol (SNTP)
SNTP allows a device to set its internal clock based on periodic updates from a Network Time
Protocol (NTP) server. Updates can be requested from a specific NTP server, or can be received
via broadcasts sent by NTP servers.
Spanning Tree Algorithm (STA)
A technology that checks your network for any loops. A loop can often occur in complicated or
backup linked network systems. Spanning Tree detects and directs data along the shortest
available path, maximizing the performance and efficiency of the network.
Telnet
Defines a remote communication facility for interfacing to a terminal device over TCP/IP.
Transmission Control Protocol/Internet Protocol (TCP/IP)
Protocol suite that includes TCP as the primary transport protocol, and IP as the network layer
protocol.
Trivial File Transfer Protocol (TFTP)
A TCP/IP protocol commonly used for software downloads.
User Datagram Protocol (UDP)
UDP provides a datagram mode for packet-switched communications. It uses IP as the underlying
transport mechanism to provide access to IP-like services. UDP packets are delivered just like IP
packets – connection-less datagrams that may be discarded before reaching their targets. UDP is
useful when TCP would be too complex, too slow, or just unnecessary.
Virtual LAN (VLAN)
A Virtual LAN is a collection of network nodes that share the same collision domain regardless of
their physical location or connection point in the network. A VLAN serves as a logical workgroup
with no physical barriers, and allows users to share information and resources as though located
on the same LAN.
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