H3C Technologies H3C Intelligent Management Center - Manual (Page 79)

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4 Interface monitoring
This chapter of the NTA administrator guide provides you with information on interface monitoring in
NTA, including how NTA analyzes network flow records report on network traffic from an interface
perspective. This chapter describes the reporting options for interface traffic analyses and reviews
configuration issues around interface monitoring and traffic analysis tasks and the reports they generate.
This chapter also explains the process for adding interface traffic analysis tasks, including instructions for
adding, modifying, and deleting tasks from NTA. It provides a survey of the summary reports for all
interface tasks and a look at the more granular reports for an individual interface traffic analysis task.
Interface traffic analysis overview
Interface traffic analysis tasks analyze network flow data by the interfaces you specify in interface traffic
analysis tasks. NTA will parse all network flow data and provide various statistical views of traffic that
was observed for the interfaces configured in an interface traffic analysis task. For example, NTA will
provide source and destination host information reporting by interface, displaying the rate of traffic
attributed to specific source or destination hosts that were observed sending or receiving traffic across the
selected interface.
In general, the NTA interface traffic analysis tasks provide traffic statistics for the interfaces configured in
every interface traffic analysis task. The interface traffic reports include rate of traffic for all interfaces in
all tasks, for all interfaces in each task, and for individual interfaces in a task. Interface statistics include
traffic rate by application, source host, destination host, and a session or source/destination host pair.
These reports are organized into multiple layers from summarized information for all tasks to detailed
reporting for specific interfaces configured for an individual interface traffic analysis task.
Interface traffic analysis reporting overview
After you create the first interface traffic analysis task, NTA creates an entry called Interface Traffic
Analysis Task
under the area Traffic Analysis and Audit on the left navigation tree.
Click Interface Traffic Analysis Task on the left navigation tree to view the summary report for all interface
traffic analysis tasks.
Move your mouse pointer to the shortcut menu icon to the right of the Interface Traffic Analysis Task.
The Interface Traffic Analysis Task shortcut menu appears to display all interface traffic analysis tasks
created in NTA. Click the name link for a task to view the interface traffic analysis report of the task.
To view the interface traffic analysis report of an interface in an interface traffic analysis task, click the
Expand icon next to the task on the shortcut menu to display the all interfaces in the task. Click the
name link for an interface to view the interface traffic analysis report of the interface.
The summary interface traffic analysis report provides the following information:
• Average Rate (Last 1 Hour)—This bar graph provides summarized average rate per second
reporting for all interfaces specified in all interface traffic analysis tasks summarized by task. Each
bar in the graph is a link to more detailed reporting for the selected task. This includes traffic,
application, source, destination, and session statistics: