AMX NXA-ENET24 Instruction Manual page 413

Glossary
Secure Shell (SSH)
A secure replacement for remote access functions, including Telnet. SSH canauthenticate users
with a cryptographic key, and encrypt data connections betweenmanagement clients and the switch.
Simple Mail Transfer Protocol (SMTP)
A standard host-to-host mail transport protocol that operates over TCP, port 25.
Simple Network Management Protocol (SNMP)
The application protocol in the Internet suite of protocols which offers network management
services.
Simple Network Time Protocol (SNTP)
allows a device to set its internal clock based on periodic updates from a Network Time
SNTP
Protocol (NTP) server. Updates can be requested from a specific NTP server, or can be received via
broadcasts sent by NTP servers.
Spanning Tree Protocol (STP)
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.
Protocol-Independent Multicasting (PIM)
This multicast routing protocol floods multicast traffic downstream, and calculates the shortest-path
back to the multicast source network via reverse path forwarding. PIM uses the router's IP routing
table rather than maintaining a separate multicast routing table as with DVMRP. PIM - Sparse
Mode is designed for networks where the probability of a multicast client is low, such as on a Wide
Area Network. PIM - Dense Mode is designed for networks where the probability of a multicast
client is high and frequent flooding of multicast traffic can be justified.
Terminal Access Controller Access Control System Plus (TACACS+)
is a logon authentication protocol that uses software running on a central server to
TACACS+
control access to TACACS-compliant devices on the network.
Transmission Control Protocol/Internet Protocol (TCP/IP)
Protocol suite that includes TCP as the primary transport protocol, and IP as the network layer
protocol.
Transport Layer Security (TLS)
Transport Layer Security (TLS) is a protocol that ensures privacy between communicating
applications and their users on the Internet. When a server and client communicate, TLS ensures
that no third party may eavesdrop or tamper with any message. TLS is the successor to the Secure
Sockets Layer (SSL).
Trivial File Transfer Protocol (TFTP)
A TCP/IP protocol commonly used for software downloads.
NXA-ENET Software Management Guide 397