Glossary
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.
UNI
Unicast
A single packet sent to a single network destination.
VBR
Variable Bit Rate. VBR is a QoS class for ATM networks. It is subdivided into a real time (RT) class and
VC
Refer to Virtual Channel on page 213, Virtual Circuit on page 213, and Virtual Connection on page 213.
VCI
Virtual Channel Identifier. A 16 bit value in the ATM cell header that provides a unique identifier for the Virtual Channel (VC) within a Virtual Path that carries a particular cell.
VIDP
VLAN Information Distribution Protocol. VIDP is a proprietary Avaya protocol running between Avaya P110 Device and Avaya M770 Device agents. A station’s VLAN information is distributed to all agents in order to use this information throughout the network.
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