About network troubleshooting

Network Manager provides several ways for troubleshooting network problems, including network views, event lists, Path Views, and the Structure Browser.

Network views and event lists provide a starting point for identifying network problems.

• Network views are displayed in the Network Views GUI. Network views show different views of your network based on geographical or other groupings. For example, network views can show subnets and VLAN groupings. Status icons within the Network Views GUI show event status of devices and device groups.
• Event lists are displayed in the Event Viewer. The Event Viewer provides lists of events on network devices and can be filtered to show events from selected devices only.
• The Fault-Finding View shows events in the Event Viewer. When you click on an event, the Network Hop View GUI displays connectivity for the device on which the event occurred.
• The Network Health View displays topology and event data in a composite GUI, where topology data in the form of network view libraries or bookmarks is shown in the top widget, and event data in the Event Viewer is shown in the lower widget. Selection of a device from the network view libraries or bookmarks generates a list of events for that device in the Event Viewer.

You can use the Path Views and the Structure Browser to investigate specific devices and routes between devices.

• The Path Views allows you to trace network paths. Network paths display every device and link encountered between the start and end devices. Issues affecting devices and links on that path are displayed graphically.
• The Structure Browser allows you to navigate the internal structure of a device. You can also use the Structure Browser to investigate the health of device components and isolate a fault within a network device.