The snmp manager is the cornerstone of any management infrastructure.
Management consists of keeping networks and systems running, maintaining
performance, controlling and managing usage. The snmp
manager provides the interface between the human network administrator
and the managed network system or infrastructure.
The snmp architecture consists of a snmp manager, a snmp agent,
a database of management information (MIB), managed objects and
the Simple
Network Management Protocol network protocol itself.
The snmp agent is a piece of software located in the managed device
and provides the interface between the snmp manager and the physical
devices or software applications being managed. The MIB database
serves as a local data repository in the snmp manager that is used
to assemble and interpret the
variables sent in SNMP messages.
The LoriotPro software is a snmp manager component
of the manager/agent model defined in the Internet standard RFC1157.
LoriotPro as a snmp manager covers the following
domains, mib objects management, snmp request construction, snmp
response collection and treatment, data processing and displaying.
The snmp manager
polls networks and systems
The snmp
manager main role is to
poll end stations or devices and their snmp agents to check
the values of certain variables
defined in the MIB. Polling can be automatic or user-initiated,
but snmp agents in the managed devices respond to all polls.
The snmp agent notifies the snmp manager by trap
The managed devices, such as computer systems and other network devices,
with its snmp agent enables them to send alerts called snmp trap when they recognize
problems for example, when one or more user-determined thresholds
are exceeded. Upon receiving these alerts, the snmp manager can be
set to react by executing one or several actions, including administrator
notification, event logging, system shutdown etc. |
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LoriotPro uses other Internet protocol than snmp to perform its
main task, the monitoring of networks and systems.
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The LoriotPro snmp manager includes all the mandatory functionnalities
that a manager should have:
- snmp node discovery,
- mib
browser,
- snmp walker,
- snmp
trap receiver,
- mib compiler,
- trap filtering,
- network
map,
- mib database with
search option, mib duplicate name protection, mib
object linear and gauge graph, mib object trend graph, snmp requester, snmp
protocol analyzer.
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Read the LoriotPro documentation and the snmp
protocol chapter that explains in more detail the snmp manager
roles, snmp agent roles and the mib structure. |
