Maximum Number of VLAN Subinterfaces by Device Model

The device model limits the maximum number of VLAN subinterfaces that you can configure. Note that you can configure subinterfaces on data interfaces only, you cannot configure them on the management interface.

The following table explains the limits for each device model.

Model

Maximum VLAN Subinterfaces

Firepower 1010

60

Firepower 1120

512

Firepower 1140, 1150

1024

Secure Firewall 3100, 4200

1024

Firepower 4100

1024

Firepower 9300

1024

Threat Defense Virtual

50

ISA 3000

100