SNMP agents that are monitored must be configured in Operations Center using options available on the element’s right-click menu or in the element’s property pages.
For each SNMP agent that you set up for your SNMP adapter, you must specify which model(s) it belongs to. The model has the MIBs required for the adapter to talk to and gather information from the host or device.
Figure 4-1 shows a host that belongs to the Windows 2000 container in the Model Repository. This host gathers information and log events based on the available MIBs and threshold calculations (specified in collectors), as defined for the Windows 2000 model.
Figure 4-1 Operations Center console: All hosts and devices are displayed as elements in the Operations Center Explorer pane
There are two ways to add hosts or devices:
To add a host or device:
In thepane, expand the root element.
Right-click the top-leveladapter element, then select to open the Monitor SNMP Host/Device dialog box:
Specify the appropriate information:
Host/Device Name: The host name of the machine to monitor.
Element Name: The display name used for the host. If this field is blank, the Host/Device Name is used.
Host/Device Port: The port used to communicate with the host or device.
Selected Models: Lists all available model definitions that describe the data monitored from this SNMP host or device. Select one or more models.
Communication Settings: These are set globally using the top-level object. To use custom settings for a particular host, click Section 5.2, Overriding Global Communication Settings., then see
Protocol Settings: These are set globally using the top-level object. To use custom settings for a particular host, click Section 5.3, Overriding Global Protocol Settings., then see
The new host displays beneath theadapter element.
Performing a discovery is a fast way to find and add SNMP capable hosts on the network that meet the given criteria.
When using the network discovery feature, please note:
The network must allow UDP broadcasts.
The discovery is performed across one subnet only.
Discovery can be performed on the same subnet as the Operations Center server.
To perform a network discovery to add hosts:
In thepane, expand the root element.
Right-click the top-leveladapter element, then select .
(Optional) Type the network IP address in the field.
Leave this field blank to discover on the network local to the Operations Center server.
(Optional) Type the port number in the field.
Leave this field blank to use the default port of 161.
Select one or more models in.
For more information about setting up your model repository, see Section 3.2, Managing a Model Repository Structure.
To use custom communication settings for the discovery.
For information on communication settings, see Section 5.2, Overriding Global Communication Settings.
To use custom protocol settings for the discovery, click.
For information on protocol settings, see Section 5.3, Overriding Global Protocol Settings.
(Optional) If using SNMP v1 or v2c, deselect the option to perform a more complete search for hosts and devices. Instead of using a broadcast, the discovery attempts to contact each IP Address individually.
Clickto start the discovery.
Discovered hosts and devices display as elements under the SNMP Integrator adapter element.
To track the discovery process, monitor the /OperationsCenter_install_path/logs/formula.trc file. If the following Warning message occurs, discovery has found an agent but was unable to establish communications (e.g., login information is incorrect):
WARN Integration.SNMP.Adapter: SNMP_Integrator_Adapter_Name - Discovery received a REPORT for address IP_Address