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HUAWEI NetEngine5000E Core Router
Configuration Guide - System Management
Figure 3-1 SNMP structure
NM Station
NM Station
MIB
To uniquely identify managed objects, SNMP organizes them in a hierarchical tree structure and
identifies each one by a path starting from the tree root, as shown in
uses the MIB to identify and manage device objects. The nodes on the tree are the managed
objects.
Figure 3-2 Structure of a MIB tree
1
As shown in
a number string is called an Object Identifier (OID). A MIB tree is used to describe the hierarchy
of data in a MIB that collects the definitions of variables on the managed devices.
A user can use a standard MIB or define a MIB based on certain standards. Using a standard
MIB can reduce the costs on proxy deployment and therefore reduce the costs on the entire
network management system.
SNMP Operations
SNMP uses Get and Set operations to replace a complex command set. The operations used for
device management include GetRequest, GetNextRequest, GetResponse, GetBulk, SetRequest,
and notification from the agent to the NM station. The operations described in
implement all functions.
Issue 01 (2011-10-15)
UDP Port161
Request
Response
UDP Port162
1
2
1
1
2
B
5
6
A
Figure
3-2, object B is uniquely identified by a string of numbers, {1.2.1.1}. Such
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Agent
Agent
2
3 SNMP Configuration
Figure
3-2. The NM station
Figure 3-3
can
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