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- Log on
- Navigate the Console
- Views Available in NNMi
- Use Views to Display Data
- Use Hypervisor Diagrams and Dialogs
- Work with Objects
- Display Information About NNMi
- Display NNMi Version and License Information
- Use Actions to Perform Tasks
- NNMi's Global Network Management Feature (NNMi Advanced)
- Learn Your Network Inventory
- Access Device Details
- Schedule Outages for Nodes or Node Groups
- Explore SNMP MIB Source Information
- Use the MIB Browser
- View Maps (Network Connectivity)
- Monitor Devices for Problems
- Monitor Incidents for Problems
- Investigate and Diagnose Problems
- View Lists of the Unmanaged Objects in Your Network
- Check the Status of NNMi
- Monitor Performance with Network Reports
- Monitor with the NNM iSPI Performance for QA
- Monitor with the NNM iSPI Performance for Traffic
- Monitor with the NNM iSPI for MPLS
- Monitor with the NNM iSPI for IP Multicast
- Monitor with the NNM iSPI for IP Telephony
NNMi offers several ways for you to investigate and diagnose network problems.
The Causal Engine keeps track of changes in your network, and alerts you to the root cause of problems and potential problems. See Interpret Root Cause Incidents for more information.
Start by accessing the available information for the Source Object and Source Node for the incident. To access all known information about the Source Object, access the incident's Source Object form . NNMi monitors the following object types:
- Node (and Node Sensors: for example buffers. CPU, disks, memory)
- Chassis (and Physical Sensors: for example backplane, fan, power, temperature, voltage)
- IP Address
- SNMP Agent
- Node Group
- Card Redundancy Group
- Router Redundancy Group
Select an incident. Then, select Actions → Source Object. NNMi displays the form for the object associated with the incident.
A wealth of information about that object is available.
- The object's form is displayed in the top half of the display window. Use the Conclusions tab to display a history of any problems that led to the object's current Status.
- The Analysis Pane is displayed in the bottom half of the display window. It provides a quick summary of available information. For example, the Details tab also lists the available Conclusions.
- to display a list of all available tabs. Select any tab name from the list to display that tab.
- to display the next subset of tabs (depending on the current width of your NNMi window).
If the Source Object is not a node, you can access the form for the node associated with the object by selecting Open using the Lookup icon from the Hosted on Node or Managed By attribute.
Once again, information about the State, Status, and Conclusions can assist yow with identifying the problem.
Use the Actions menu to gather the latest information about multiple aspects of a node (rather than waiting for the next regularly scheduled collection time).
The Actions menu also provides an easy way to use troubleshooting commands to diagnose node connectivity and access problems:
- Display End Nodes Attached to a Switch
- Test Node Access (Ping)
- Find the Route (traceroute)
- Establish Contact with a Node (Telnet or Secure Shell)
- Check Status Details for a Node Group
You can also access Line Graphs from the Actions menu to investigate a problem. See Monitor with Graphs for more information.
- Use Tools → MIB Browser or select Actions → MIB Information → MIB Browser from a Node or Incident form to view MIB Information for a node. See Run SNMP Walk Commands (MIB Browser) for more information.
If you have NNMi role permits, you can use Actions → Open Incident Configuration to access more information about the incident including its Description, which includes reasons why the incident is generated.You can also right-click any object in a table or map view to access the items available within the Actions menu.
- Use the Tools menu to find a problem node. You can also use the Tools menu to verify that NNMi, itself, is running properly. This includes checking the status of NNMi processes and services:
To explore the information about the object, use the browse buttons:
You will find the object's State, Status (No Status, Normal, Warning, Minor, Major, Critical, Disabled, or Unknown), Conclusions, and any related incidents.
We welcome your comments!
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