Edit Interface Properties

If nominal network interface speed used to calculate bandwidth capacity utilization is incorrect or not populated at the device's management object, you can define a custom speed using the Edit Interface Properties dialog.

Hide and Show Interfaces and Define Total Network Bandwidth (for Calculation Purposes)

1. Select an interface from the Interfaces list window.

   The Flow Interface dialog displays.

   • Hide this interface from the NTA Home page and related configuration properties. Hides the selected interface from the Network Traffic Analysis reports and dashboards. This enables you to display only the interfaces relevant to your bandwidth monitoring objectives.

   Note: Null(0) interface names are hidden by default because they are not a true source interface. Null(0) interfaces show traffic that a router has dropped or traffic that a router has generated. In both cases the ifIndex = 0 and as a default convention we name an interface = Null because the interface is non existent. If you want Null(0) interface information to display as a source interface, uncheck the Hide this interface from the NTA Home page and related configuration properties option.

   • Collect traffic that was discarded by the source. Enable this option to collect traffic which entered the source through one of its interfaces but did not leave the source  possibly due to traffic going to the source (e.g., communicating with the source itself) or because the traffic should not have been sent to the source.
   • Collect traffic that was generated by the source. Enable this option to collect traffic which did not enter the source, had no input interface, but left the source. This is traffic generated by the source (e.g., responses to polling).
   • Use translated information. Enable this Cisco ASA specific option to use the translated sender and receiver IP Addresses as well as the translated sender and receiver port numbers.
   • Specify a custom speed for this interface. Click this check box to enable the In and Out text boxes.
   • In and Out. Define the speed of each interface, which is used to calculate bandwidth capacity as a percentage of the total interface speed. Enter the upper limit of the interface in bps (bits per second). Common interface speeds expressed in bps are:
     • 1 Gbps = 1,000,000,000 bps
     • 100 Mbps = 100,000,000 bps
     • 10 Mbps = 10,000,000 bps
2. Click Save to save your settings.

See Also View, Edit, Delete, and Enable Flow Sources Edit Flow Source Properties