Troubleshooting discovery with reports

The troubleshooting reports provide easy visibility into the discovery results to help with verification and troubleshooting of both the discovery results and the network itself.

Network Manager uses the Cognos Analytics component to generate reports.

For more information, see the Cognos Analytics Knowledge Center at: https://www.ibm.com/support/knowledgecenter/SSEP7J.

To access the reports in the Network Manager GUI, complete the following steps:

Click the Reporting icon and select Common Reporting. Within the widget, select Network Manager. A list of folders display. These folders contain all Cognos reports for your access.

You can use reports for verifying and troubleshooting discovery results such as the examples in Table 1.

Table 1. Report categories to use for discovery troubleshooting
Troubleshooting task	Consult this report category and report	Benefit of the report
Identifying all discovered nodes and interfaces	Utility reports: Discovered nodes and interfaces flat file list	This report lists all nodes and interfaces that were discovered. It also marks interfaces or ports connected to network devices. It allows you to check that specific devices and interfaces were actually discovered.
Resolving mismatches	Troubleshooting reports: Connected Interface Duplex Mismatch	This report provides a list of connections that have mismatches between half- and full-duplex devices, where one end of the connection is half-duplex and the other end is full-duplex. This mismatch is one of the key configuration problems that network managers have to find to resolve performance or availability issues.
Resolving inaccessible devices	Troubleshooting reports: Devices with no SNMP Access	This report identifies the devices that do not have SNMP access. You can then identify the reason for the SNMP access failure.
Resolving unconnected devices	Troubleshooting reports: Devices With No Connections	This report lists unconnected devices as a first step in determining why the discovery found no network connections for a device.
Resolving unclassified devices	Troubleshooting reports: Devices with Unclassified SNMP Object IDs	Using these reports, you can create leaf-node AOC files for the new device class.
Resolving unclassified devices	Asset reports: Interface Availability Summary By Device Class Vendor and Device Availability
Resolving devices with unregistered SNMP object IDs	Troubleshooting reports: Devices with Unknown SNMP Object IDs	Using the information in this report, you can modify the AOC files associated with the unregistered devices.
Identifying devices pending deletion	Troubleshooting reports: Devices Pending Delete on Next Discovery	This report displays information on devices to be deleted from the topology if they are not found during the next discovery cycle. The report allows you to check that removal of devices from the topology is progressing, and to identify devices erroneously scheduled for removal.