# CDP Interface

Configuration > Interfaces > CDP Interface

From this dialog box, you can specify the Cisco Discovery Protocol (CDP) settings for the ports on this device.

The following information is displayed:

- Port Number (ifIndex)

- Extended Trust (cdpInterfaceExtendedTrust)

- Untrusted CoS (cdpInterfaceCosForUntrustedPort)

The following list specifies buttons in this dialog box, as well as their function:

- Click OK to continue.

- Click Apply to make changes take effect.

- Click Cancel to close the dialog box.

- Click Refresh to reload the dialog box.

- Click Print to print the contents of the dialog box.

- Click Help to access the online help.

Port Number (ifIndex)

Unique numerical index value for the interface.

Extended Trust (cdpInterfaceExtendedTrust)

Value transmitted by an extended trust TLV.

Untrusted CoS (cdpInterfaceCosForUntrustedPort)

Value transmitted by a Class of Service (CoS) for untrusted ports TLV.