ADC Telecommunications Inc. PRSMAW4A 사용자 설명서
SNMP Interface
Page 278
FlexWave Prism Host, Remote and EMS 5.1 System Reference
© 2009 ADC Telecommunications, Inc
ADCP-77-073
• Issue 2 • 11/2009
12.2.1
Background Information on SNMP
SNMP (Simple Network Management Protocol) is an international standard for remote
control of online devices. A typical scenario involves the devices being controlled,
remote computers (called managers) that can control them, a network connection,
and SNMP software. The SNMP software includes SNMP manager software on each
controlling computer and SNMP “proxy agent” software and one or more MIBs on
each of the controlled devices.
control of online devices. A typical scenario involves the devices being controlled,
remote computers (called managers) that can control them, a network connection,
and SNMP software. The SNMP software includes SNMP manager software on each
controlling computer and SNMP “proxy agent” software and one or more MIBs on
each of the controlled devices.
A MIB is a database defined in accordance with SNMP requirements. A MIB consists
of tables of objects used to exchange information between a manager and agent.
Information is exchanged using three basic operations: GET, SET, and TRAP. A
manager uses GET to obtain an object value from a MIB and SET to set an object to a
new value. A TRAP is a notification that is sent out by an agent when the value of a
trap object exceeds a threshold defining an alarm state.
of tables of objects used to exchange information between a manager and agent.
Information is exchanged using three basic operations: GET, SET, and TRAP. A
manager uses GET to obtain an object value from a MIB and SET to set an object to a
new value. A TRAP is a notification that is sent out by an agent when the value of a
trap object exceeds a threshold defining an alarm state.
In a manager browser, a MIB looks like an Explorer hierarchy of folders and files, as
shown in
shown in
Figure 12-3
. The items at the lowest level, analogous to files in the Explorer
view, are not files, however; they are objects that each represent one system
parameter (object) and its current value. MIB objects are arranged in tables. Each set
of objects (within a single folder) represents one such table. An object marked with a
key symbol indicates that view is the key value for that table.
parameter (object) and its current value. MIB objects are arranged in tables. Each set
of objects (within a single folder) represents one such table. An object marked with a
key symbol indicates that view is the key value for that table.