Inter-Tel AXXESS Manual page 1488

Appendix C — CP Server
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INTER-TEL AXXESS
30. SIMPLE NETWORK MANAGEMENT PROTOCOL (SNMP)
30.1 The CP Server is designed to be used on a LAN/WAN where it can be monitored and
managed from centralized network management stations, administered by MIS personnel,
using Simple Network Management Protocol (SNMP).
30.2 SNMP on the version 5.2 and later CP Servers can be used to monitor and display the
following information:
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30.3 The Simple Network Management Protocol (SNMP) is a standard that defines a method
for remotely monitoring the performance of systems (routers, bridges, servers, etc.) connected
to a Local Area Network (LAN) or Wide Area Network (WAN). The three components of
SNMP are the Management Information Base (MIB), the Agent, and the Manager.
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30.4 The Simple Network Management protocols communicate management information
between the manager and the agent. SNMP enables the following:
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30.5 The SNMP Installation assumes that the SNMP service is already installed on the CP
Server server.
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MANUAL VERSION 11.0 – May 2008
System Alarms including all major and minor System and Voice Processing Unit
alarms. It can also display warning messages and alarms from the operating system,
hardware and database.
Error Statistics are updated hourly and daily for the T1 cards.
Configuration information includes System version, Windows version and System
status.
Performance information that includes network performance, status, statistics, capac-
ity information etc.
The Manager system executes network management operations that monitor and con-
trol agent systems. The implementation of these network management operations is
called a manager.
The Agent system is a device, such as a router, bridge, or server, that has an SNMP
agent responsible for performing the network management operations requested by the
manager.
The information on the agent is known as a Management Information Base (MIB). It
is a concept that encompasses the configuration and status values about the system
being monitored. It contains a collection of standardized and non-standardized objects.
MIBs are defined using an Internet-standard language called the Structure of Manage-
ment Information, or SMI. A few examples of the types of information contained in a
MIB are: the full name and version of the system, physical location of the managed
node, the total number of bytes transmitted out of the interface, T1 Errors, capacity
remaining in UPS batteries. To access the value of a MIB object, an SNMP manager
sends a request to the agent representing the desired instance of the object. The request
message contains MIB information (an OID – Object Identifier) that lets the agent iden-
tify the specific objects.
A manager to retrieve (get) information from the agent. The manager sends requests for
information to the agent and the agent sends back replies containing the requested infor-
mation.
A manager to alter (set) information on the agent.
An agent that sends an unsolicited response when it detects an alarm. The alarm trans-
mission is referred to as a "trap." Traps alert the manager of changes that occur on the
agent without an explicit request from the manager.
Simple Network Management Protocol (SNMP)