3Com 3CRDSF9PWR-US - OfficeConnect Managed Fast Ethernet PoE Switch User Manual page 247

Power over Ethernet
(PoE)
Remote
Authentication
Dial-in User Service
(RADIUS)
Remote Monitoring
(RMON)
Rapid Spanning Tree
Protocol (RSTP)
Secure Shell (SSH)
Simple Network
Management
Protocol (SNMP)
Spanning Tree
Protocol (STP)
Transmission Control
Protocol/Internet
Protocol (TCP/IP)
Trivial File Transfer
Protocol (TFTP)
User Datagram
Protocol (UDP)
Power over Ethernet provides power to devices over existing LAN
cabling, without updating or modifying the network infrastructure.
Power over Ethernet removes the necessity of placing network devices
next to power sources.
is a logon authentication protocol that uses software running
RADIUS
on a central server to control access to RADIUS-compliant devices on
the network.
RMON provides comprehensive network monitoring capabilities. It
eliminates the polling required in standard SNMP, and can set alarms on
a variety of traffic conditions, including specific error types.
reduces the convergence time for network topology changes to
RSTP
about 10% of that required by the older IEEE 802.1D STP standard.
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.
The application protocol in the Internet suite of protocols which offers
network management services.
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.
Protocol suite that includes TCP as the primary transport protocol, and
IP as the network layer protocol.
A TCP/IP protocol commonly used for software downloads.
provides a datagram mode for packet-switched communications. It
UDP
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.
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