Huawei AR150/200 Series, Configuration Manual

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Figure 1-1 SNMP structure
UDP Port161
Request
Response
NM Station
Agent
NM Station
Agent
UDP Port162
Trap
MIB
SNMP uses a hierarchical naming convention to identify managed objects and to distinguish
between managed objects. This hierarchical structure is similar to a tree with the nodes
representing managed objects,
Figure 1-2 shows a managed object that can be identified by the
path from the root to the node representing it.
Figure 1-2 Structure of a MIB tree
A
2
6
1
5
2
1
1
2
1
B
As shown in Figure 1-2 , object B is uniquely identified by a string of numbers, {1.2.1.1}. Such
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 described
in
Figure 1-3 can implement all functions.
Huawei AR150&200 Series Enterprise Routers
Configuration Guide - Network Management
1 SNMP Configuration
Issue 02 (2012-03-30) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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