220 | Interfaces
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Interface Types
The following lists the different interface types.
View Basic Interface Information
You have several options for viewing interface status and configuration parameters. The show interfaces 
command in EXEC mode lists all configurable interfaces on the chassis and has options to display the 
interface status, IP and MAC addresses, and multiple counters for the amount and type of traffic passing 
through the interface. If a port channel interface is configured, the 
show interfaces command can list the 
interfaces configured in the port channel.
 
Figure 13-1 shows the configuration and status information for one interface. 
Interface Type
Modes 
Possible Default Mode
Requires 
Creation Default State
Physical L2, L3 Unset No Shutdown (disabled)
Management N/A N/A No No Shutdown (enabled)
Loopback L3 L3 Yes No Shutdown (enabled)
Null N/A N/A No Enabled
Port Channel L2, L3 L3 Yes Shutdown (disabled)
VLAN L2, L3 L2 Yes (except 
default)
L2 - No Shutdown (enabled)
L3 - Shutdown (disabled)
Note: To end output from the system, such as the output from the show interfaces command, enter 
CTRL+C and FTOS returns to the command prompt.
Note: The command line interface (CLI) output may be incorrectly displayed as 0 (zero) for the Rx/Tx 
power values. Perform an simple network management protocol (SNMP) query to obtain the correct 
power information.