User guide

Glossary 467
Site
A location that contains a managed appliance, DSView Server or both.
Simple Network Management Protocol (SNMP)
A set of protocols for managing complex networks. SNMP works by sending messages to different
parts of a network. SNMP-compliant devices, called agents, store data about themselves in MIBs
and return this data to the SNMP requesters.
SNMP Manager
An optional component (outside of the DSView system) that enables the monitoring of many cross-
platform devices using SNMP information. SNMP managers are also called network management
systems (NMS).
SPC
The SPC is an Avocent cascade device that allows the remote controlling of target device power
using a serial connection.
Spoke DSView Server
A DSView Server that is responsible for initiating database replication with the Hub DSView
Server. A Spoke DSView Server sends its database changes to the Hub DSView Server and
receives database changes from the Hub DSView Server.
NOTE: The Hub DSView Server and a Spoke DSView Server offer the same DSView software functionality to a
DSView user. The distinction of "Hub" or "Spoke"only has to do with the database replication role the server
plays and not with the DSView software functionality the server offers to the DSView user.
Target Device
A wide range of data center components such as servers and routers that an Administrator is able to
virtually manage through the DSView software.
Target Device Session
A target device connection through a KVM, Serial, Telnet or web browser. Target device sessions
do not include power management functionality.
Transmission Control Protocol (TCP/IP)
TCP is one of the main protocols in TCP/IP networks. The IP protocol deals only with packets.
TCP enables two hosts to establish a connection and exchange streams of data. TCP guarantees
delivery of data and that packets will be delivered in the same order in which they were sent.