Polycom MGC Administrator, Руководство администратора

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MGC Administrator’s Guide
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SNMP (Simple Network Management Protocol)
SNMP is a standard protocol for managing all types of network equipment.
Adding SNMP functionality to the MCU enables monitoring of the MCU
status by external managing systems, such as HP OpenView.
A network management system consists of two primary elements: a Manager
and Agents. The Manager is the terminal through which the network
administrator performs network management functions. Agents are entities
that interface to the actual device being managed. Bridges, Hubs, Routers and
MCUs are examples of managed devices that contain managed objects. These
managed objects may be hardware, configuration parameters, performance
statistics, and so on, that directly relate to the current operation of the device
being monitored. These objects are arranged as a virtual information
database, known as Management Information Base (MIB). SNMP allows
managers and agents to communicate for the purpose of accessing these
objects.
MIBs are a collection of definitions, which define the properties of the
managed object within the device to be managed. Every managed device
keeps a database of values for each of the definitions written in the MIB.
The H.341 standard defines the MIBs that H.320 and H.323 MCUs must
comply with. In addition, other MIBs should also be supported, such as MIB-
II and the ENTITY MIB, which are common to all network entities.
MIB (Management Information Base) Files
This section describes the MIBs that are included with the MGC Manager.
These MIBs define the various parameters that can be monitored, and their
acceptable values. The MIBS are contained in files in the
SNMP Mibs sub-
directory of the MGC Manager root directory. The files should be loaded to
the SNMP external system and compiled within that application. Only then
can the SNMP external application perform the required monitoring tasks.
The MULTI-MEDIA_MIB_TC must be compiled before compiling the other MIBs.