3Com 3CRDSF9PWR manual Remote Monitoring, Protocol Rstp, Secure Shell SSH, Simple Network

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