Views in Performance Center › CA Network Flow Analysis Views in CA Performance Center › Interface: Top Hosts › Top Hosts (Table)

Top Hosts (Table)

The Top Hosts (Table) views show rate, volume, or utilization for the hosts who exchange the highest volume of data on a particular interface.

The example shows a Top Hosts (Table) view in the CA Performance Center Console. The view is configured to show the rate for each listed host. You can configure the view to display rate, utilization, or volume information.

The view contains an interface identification string and a table. The table contains a row for each host with the fully qualified DNS host name (if available) and IP address, as well as the following rate, volume, or utilization information (by default):

• Rate:
  • (CA PC/NPC) For each host, the average rate of total data (Average Total), data that goes to the host (Average To), and data that comes from the host (Average From).
  • (CA PC) For each host, maximum rate of data that comes from the host (Maximum From) and goes to the host (Maximum To).

  The rate is calculated by dividing the data volume by the elapsed transmission time.

• Volume: For each host, total amount of data (Total), data from the host (From), and data to the host (To), expressed in a scale that is appropriate for the highest-volume host.
• Utilization:
  • (CA PC/NPC) For each host, average utilization by data that comes from the host (Average From), data that goes to the host (Average To), and total data (Average Total).
  • (CA PC) For each host, maximum percentage of interface capacity that is used by the data from the host (Maximum From) or that goes to the host (Maximum To).

  The utilization percentage is calculated by dividing the data rate by the data speed.

Performance Center views show the data from the time range that is defined for the page.

Opening the View

To see this view in the Performance Center Console, go to one of the following locations:

• (CA PC) Custom dashboard
• (NPC) Interface Pages (with an interface selected): Custom tab

Available Actions

You can perform several actions in this view, including the following ones:

• Change the type of measurement and the view name by editing the view settings.
• (CA PC) Change the interface.
• (CA PC) Change the columns that are shown in the table: Click near a column border, click Columns, then choose the columns to display.
• Click a name to jump to a pre-filtered Interface page report in the NFA console.

Find Host Tables in the NFA Console

You can display tables with host volumes in the NFA console for a selected interface:

• Top N Hosts Summary -- Report type: Hosts. Filter: Top N Hosts. Presentation menu option: Summary Table; Volume.

  View: Host Summary Table for the Top N Hosts.

• Hosts for a Single Protocol -- Report type: Protocols. Filter: Single protocol. Report subtype: Overview. Presentation menu option: Summary Table; Volume.

  View: Protocol Host Summary Table for the single protocol.

• Hosts for a Single ToS -- Report type: ToS. Filter: Single ToS. Report subtype: Hosts. Subtype filter: Top N Hosts. Presentation menu options: Summary Table; Volume.

  View: ToS Hosts Summary Table for the single ToS.

To display Flow Forensics-level detail, click the Flow Forensics link and run a Flow Forensics report.