Interface Reports › Interface Report Types › Top N Hosts Report

Top N Hosts Report

A Top N Hosts report provides information about the hosts that generate the most traffic on the selected interface.

To display a Top N Hosts report, start from an interface report.

Follow these steps:

1. Display an interface report in either of the following ways:
   • Locate and click an interface on the Interfaces page.
   • Click an interface link in an existing view--for example, on the Enterprise Overview page.
2. Select Hosts from the report type menu at the top-left corner of the page.
3. Make sure that the report scope is set to Top N Hosts. The Top N Hosts link should appear next to the report type setting.

   The report page is updated to show host summary pie charts by default. The report includes views for the following host data:

   • From: Top hosts who sent data to the interface.
   • To: Top hosts who received data from the interface.
   • Total: Top hosts who either sent data to the interface or received data from the interface.
4. (Optional) Change the data presentation type and the data measurement type by using the Presentation options.
   • Trend Chart of Rate, Volume, or Utilization data: Show trend charts for data that travels to and from the hosts.

     Use the Show Top setting to specify the maximum number of conversations to include.

   • Pie Chart: Show a pie charts for data that travels to and from the hosts, with lists of hosts and their data volumes. (Default setting)
   • Summary Table of Rate, Volume, or Utilization data: Show a table of data that travels to and from the hosts.
5. (Optional) Change the reporting period: Open the Timeframe dialog by clicking the timeframe link.

   The reporting period is the most recent 24-hour period by default.

Display an Interface Report for a Single Host

To drill down to more detailed, host-specific data for the selected interface, click a host name in a Top N Host view. An overview report for the host on that interface opens. You can view the host details or the host protocols.

You can view this type of report in Details mode or Protocols mode, which have the following options:

• Details mode: Charts of rate, volume, or utilization data in any combination of the following views:
  • Last Hour (displayed by default).
  • Last 2 Hours (displayed by default).
  • Last 8 Hours (displayed by default).
  • Daily (displayed by default).
  • Weekly.
  • Monthly.
  • Yearly.
• Protocols mode Trend Chart or Summary Table: Rate, volume, or utilization for the protocols that the hosts used. You see the data coming into the interface and the data going out from the interface.
• Protocols mode Stacked Trend Chart: Data for all protocols that the hosts used (coming into and going out of the interface).

To return to the summary view, click the link that is named for the currently selected host and click Select Top N Hosts.

Find Comparable Views in CA Performance Center

You can display the following host views in the CA Performance Center console:

• Top Hosts (Bar): Look for the built-in view on the Management: Network Overview dashboard. You also can add views of the following types to a custom dashboard: In (inbound data), Out (outbound data), and Total (both inbound and outbound data).
• Top Hosts (Pie): Look for the built-in view on the IP Performance tab of the Interfaces Pages. You also can add views of the following types to a custom dashboard: In (inbound data), Out (outbound data), and Total (both inbound and outbound data).
• Top Hosts (Table): Add Rate, Volume, and Utilization views to a custom dashboard.