HP A5799A Bedienungsanleitung PDF herunterladen (Seite 53)

MIBs

SNMP uses a data structure known as Management Information Base,

or MIB, to store information. Each piece of information, or object, in the

MIB has a unique Object Identifier. Object identifiers are indices based

on a tree structure. The information is held in a “node” at the end of a

“branch” in the tree. The Object Identifier shows the path by listing each

branch needed to reach the node.

The identifier serves to name or reference the object. MIBs for specific

companies are allocated to the MIB branch known as enterprise. Thus,

each company branches from the general branch known as enterprise.

From that point on in the MIB, the company developing the MIB controls

the information and Object Identifier used to reference the data. This

information is required to coordinate the sending and receiving of data

between an SNMP-compliant device and an SNMP-based network

management system.

When both the SNMP Agent and SNMP Management system have the

same MIB structure, data can be easily transferred and used. SNMP

data packets, each containing an object identifier and information

associated with that object, are passed between the device and

management system to populate the appropriate fields in the receiver’s

MIB. Both the Agent and Management System can then reference the

object and process the data as needed.

The terminal server has a general MIB as well as proprietary MIBs for

companies that use the terminal server as an SNMP trap proxy.

The following table shows the basic set-up of a MIB and provides

information about:

•

Object Identifiers – The index used to identify the information in the

MIB.

•

Object Data – The information contained in the referenced data

node.

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HP A5799A Bedienungsanleitung Seite 53