Chapter 5
Configuring Ethernet Settings, Redundant Interfaces, and Subinterfaces
Configuring VLAN Subinterfaces and 802.1Q Trunking
By default, the subinterface is enabled. To disable the interface, enter the shutdown command. If you
shut down an interface in the system execution space, then that interface is shut down in all contexts that
share it.
Cisco Security Appliance Command Line Configuration Guide
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