Reference Guide

370 | Interfaces
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• Auto-Negotiation on Ethernet Interfaces
• View Advanced Interface Information
Interface Types
View Basic Interface Information
The user has several options for viewing interface status and configuration parameters. The show interfaces
command in EXEC mode will list 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 19-1 displays 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 will return to the command prompt.