<- om:rc:example_views|Example views ^ om:start|Operation Manager ^  ->


====== SNMP Overview ======

The DHD firmware is able to provide SNMP commands via an external PC. The DHD SNMP Software 52-8591 enables SNMP Support for DHDOS and is related to a single DHD device.

To send SNMP commands, the mixing console has to be connected via ethernet to a PC, on which the DHD Operation Server and the DHD Operation Manager is running. This PC-Software provides the SNMP commands.

/* <WRAP center round important 80%>
**Important**\\  For the usage of the SNMP license with a 52/SX console an additional Networking license is required (52-8583 Control Networking Option). This additional license enables the 52/SX console to send logic functions over Ethernet.
</WRAP> */

**brief description:**

At the moment, only the SNMP commands "Get" and "GetNext" are implemented.

The following conditions are available by default:

  * power down master/slave
  * wetness alert
  * temperature alert
  * synchronisation source 1/2
  * 44.1 kHz / 48 kHz

Further conditions can be defined in the DHDOM (maximum of 20).

Any information defined in the mib-file are read-only and can not be set.

Each SNMP condition is able to send a "trap".

The following screenshots show the SNMP option in the DHD Operation Manager:

[{{ :om:snmp:snmp_1.png |//DHD Operation Manager - Default SNMP Logics//}}]

[{{ :om:snmp:xnmp_2.png |//DHD Operation Manager - User defined SNMP Logics//}}]

===== Set up =====

To set up SNMP, installing the DHD SNMP Agent is required. This software allows DHDOS to communicate via SNMP. 

The mib files are defined and created directly at DHD. Contact DHD if required.

==== Configure ====
 
For further configuration, go to ''Adminiatration / SNMP Options''. The ''SNMP Options'' window opens. 

First, you have to select the device you want to configure.

In the ''SNMP Logics'' area you see and define logics for SNMP monitoring. In the ''SNMP Logic'' column, the SNMP logic name is defined and shown. The ''Assigned Logics'' column shows which logics are assigned to the SNMP logic function. The ''State'' column shows the state of the logic: 

  * Yellow = true
  * Gey = false

The ''As Trap'' column shows if the logic will send a trap when it changes or not.

The ''Mod.'' column shows with a ''*'' entry if the logic was modified.

In the ''Default'' tab, all predefined system logics are shown. You can only rename them and set if they are allowed to send traps or can only be requested.

In the ''Userdefined'' tab you can use user-defined logic sources.

To create a new user-defined logic click ''Add''. To remove existing entries, select the entry and click ''remove''. To change settings of entries, click the entry you want to edit in the list. 

You can change following settings in ''SNMP Logic Option'' area:

  * ''Name'': Enter a name of the logic
  * ''Assigned Logic'': Assign a console logic from the logic tree to the SNMP logic. Click ''Select''. The ''Logic Sources'' window opens. In the tree, select the logic you need. The logics displayed here are the same as displayed in TB8 (See [[tb8:view#logic_sources|TB8 / logic sources window]] and [[tb8:logic|TB8 / General information on logic]] for more information). When you selected the correct logic by clicking, you can invert the logic state by checking ''Invert Logic Level''. Click ''Select'' to select and close the window.
  * ''Use as Trap'': Set if the logic sends a trap when it changes or not.