Interface Types
The following table describes different interface types.
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)
View Basic Interface Information
To view basic interface information, use the following command.
You have several options for viewing interface status and configuration parameters.
• Lists all configurable interfaces on the chassis.
EXEC mode
show interfaces
This command 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 you configured a port channel interface, this command lists the interfaces configured in the port
channel.
NOTE: To end output from the system, such as the output from the show interfaces
command, enter CTRL+C and the system returns to the command prompt.
NOTE: The CLI output may be incorrectly displayed as 0 (zero) for the Rx/Tx power values. To
obtain the correct power information, perform a simple network management protocol (SNMP)
query.
398 Interfaces