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1200420L1-1 ESU 120e User Manual A-1
A ppendix A
Understanding SNMP
As local area network (LAN) environments became standardized
over the past ten years, multi-vendor equipment grew with compe-
tition. It became necessary to manage the various vendor equip-
ment from a single control console. Thus, the SNMP emerged as
the standard for managing commercial TCP/IP networks.
The term SNMP broadly refers to the message protocols used to
exchange information between the network and the managed
devices, as well as to the structure of network management data-
bases.
SNMP BASIC COMPONENTS
SNMP has three basic components: Network Manager, Agent, and
MIB.
Network Manager
This is a control program that collects, controls, and presents data
pertinent to the operation of the network devices. It resides on a
network management station.
Agent
This is a control program that responds to queries and commands
from the network manager and returns requested information or
invokes configuration changes initiated by the manager. It resides
in each network device.