About Snmp proxy points

There are two basic categories of Snmp proxy points, as described below and in the following sections:

Snmp client (manager) proxy points

Client proxy points are used under an Snmp client (manager) application. Refer to Snmp client proxy points for information about these types of points.

Snmp agent (server) proxy points

Agent Snmp proxy points are used under an Snmp agent (Local Device) application.

Snmp agent proxy points are used to expose read-write and read-only Niagara data to an outside Snmp manager making requests to the station. A running station with an SnmpNetwork includes an Input and Output Table. These tables may contain one or more objects that can be exposed through GET, GETNEXT, or SET requests sent to it from an outside SnmpDevice (usually an outside Snmp manager). When Snmp agent proxy points are added to an Snmp agent under the SnmpNetwork, the Input Table (for read-write objects) or Output Table (for read-only objects) are populated and thus accessible via Snmp requests (supports both Snmp v1 and Snmp v2 GET, GETNEXT, or SET requests).

To get a list of all of the agent data in the Input Table, you have to perform a series of GETNEXT and/or GET requests starting from the following root OID: 1.3.6.1.4.1.4131.1.4.

NOTE: The data contained in the Input Table will also accept SET requests to change the value of the data and the corresponding SnmpAgent proxy point.To get a list of all of the agent data in the Output Table, perform a series of GETNEXT and/or GET requests starting from the following root OID: 1.3.6.1.4.1.4131.1.5.The data contained in the Output Table will not accept SET requests as it contains read-only data.As Snmp Agent proxy points are added to the SnmpAgent device, they are automatically assigned an index value that corresponds to the column index of the object created for it in the Input or Output Table.Refer to Snmp agent proxy points for more information.

Snmp agent (server) export points

These types of points appear under the Snmp Export Table, which has the Snmp Export Manager as its default view. You can use the Snmp Export Manager view to discover and add control points from a Local Device to the Export Table. The discovery process uses a Bql Query dialog box to help you find and filter control points. Once these export points are in the Snmp Export Table they can be discovered by an SnmpNetwork manager using the Snmp Point Manager view.