PLANET ADN-4000 - Manual (Page 103)

103
SNMP Pro
protocol that
facilit es. It is part of
the Tr enables
Tw 2).
fers enhancements,
network managed by
SNMP.
3.6.3 SNMP Client
tocol
The Simple Network Management Protocol (SNMP) is an application layer
ates the exchange of management information between network devic
ansmission Control Protocol/Internet Protocol (TCP/IP) protocol suite. SNMP
network administrators to manage network performance, find and solve network problems,
and plan for network growth.
o versions of SNMP exist: SNMP version 1 (SNMPv1) and SNMP version 2 (SNMPv
Both versions have a number of features in common, but SNMPv2 of
such as additional protocol operations. Figure 1 illustrates a basic
Figure1: SNMP Facilitates the Exchange of Network Information between Devices
e
this information available to NMSs using SNMP. Managed devices, sometimes called
network elements, can be routers and access servers, switches and bridges, hubs,
computer hosts, or printers.
An agent is a network-management software module that resides in a managed device. An
agent has local knowledge of management information and translates that information into
a form compatible with SNMP.
An NMS executes applications that monitor and control managed devices. NMSs provide
the bulk of the processing and memory resources required for network management. One
or more NMSs must exist on any managed network.
An SNMP-managed network consists of three key components: managed devices, agents,
and network-management systems (NMSs).
A managed device is a network node that contains an SNMP agent and that resides on a
managed network. Managed devices collect and store management information and mak