System information

Glossary
Glossary-4
Port Trunk
Defines a network link aggregation and trunking method which specifies how to
create a single high-speed logical link that combines several lower-speed physical
links.
Remote Authentication Dial-in User Service (RADIUS)
RADIUS
is a logon authentication protocol that uses software running on a central
server to control access to RADIUS-compliant devices on the network.
Remote Monitoring (RMON)
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.
Rapid Spanning Tree Protocol (RSTP)
RSTP
reduces the convergence time for network topology changes to about 10% of
that required by the older IEEE 802.1D STP standard.
Simple Network Management Protocol (SNMP)
The application protocol in the Internet suite of protocols which offers network
management services.
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.
Transmission Control Protocol/Internet Protocol (TCP/IP)
Protocol suite that includes TCP as the primary transport protocol, and IP as the
network layer protocol.
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.