Avaya C460 User Manual
Page 267
Glossary
Avaya C460 Reference Guide
255
Transceiver
A device that both transmits and receives analog or digital signals. Usually used to
describe the LAN component that applies signals onto the network wire and detects
signals passing through the wire.
Trap
Message sent by an SNMP agent to an NMS, console, or terminal to indicate the
occurrence of a significant event, such as a specifically defined condition or a
threshold that was reached. Similar to an alarm.
Tree View
A resizeable window containing a hierarchical representation of the modules and
ports of the device.
UDP
User Datagram Protocol. Connectionless transport layer protocol in the TCP/IP
protocol stack. UDP is a simple protocol that exchanges datagrams without
acknowledgments or guaranteed delivery, requiring that error processing and
retransmission be handled by other protocols.
Unicast
A single packet sent to a single network destination.
Virtual Connection
A connection established between end-users (source and destination), where
packets are forwarded along the same path and bandwidth is not permanently
allocated until it is used.
Virtual Path
A group of virtual channels that can support multiple virtual circuits.
VSA
Vendor-Specific Attribute. RADIUS supports attributes of which one, the VSA,
supports vendor-specific attributes. This allows vendors to create custom RADIUS
attributes.