Configure a Physical Interface

You can physically enable and disable interfaces, as well as set the interface speed and duplex. To use an interface, it must be physically enabled in FXOS and logically enabled in the application.

Note

For QSFPH40G-CUxM, auto-negotiation is always enabled by default and you cannot disable it.

Before you begin

  • Interfaces that are already a member of an EtherChannel cannot be modified individually. Be sure to configure settings before you add it to the EtherChannel.

Procedure

Step 1

Choose Interfaces to open the Interfaces page.

The All Interfaces page shows a visual representation of the currently installed interfaces at the top of the page and provides a listing of the installed interfaces in the table below.

Step 2

Click Edit in the row for the interface you want to edit to open the Edit Interface dialog box.

Step 3

To enable the interface, check the Enable check box. To disable the interface, uncheck the Enable check box.

Step 4

Choose the interface Type:

See Interface Types for details about interface type usage.

  • Data

  • Data-sharing—For container instances only.

  • Mgmt

  • Firepower-eventing—For threat defense only.

  • Cluster—Do not choose the Cluster type; by default, the cluster control link is automatically created on Port-channel 48.

Step 5

(Optional) Choose the speed of the interface from the Speed drop-down list.

Step 6

(Optional) If your interface supports Auto Negotiation, click the Yes or No radio button.

Step 7

(Optional) Choose the duplex of the interface from the Duplex drop-down list.

Step 8

(Optional) Explicitly configure Debounce Time (ms). Enter a value between 0-15000 milli-seconds.

Note

Configuring Debounce Time is not supported on 1G interfaces.

Step 9

Click OK.