CHAPTER 9
Working with Configuration Files
This chapter contains the following sections:
•
Information About Configuration Files, page 123
•
Licensing Requirements for Configuration Files, page 124
•
Managing Configuration Files, page 124
•
Verifying the Device Configuration, page 136
•
Examples of Working with Configuration Files, page 136
•
Additional References for Configuration Files, page 137
Information About Configuration Files
Configuration files contain the Cisco NX-OS software commands used to configure the features on a Cisco
NX-OS device. Commands are parsed (translated and executed) by the Cisco NX-OS software when the
system is booted (from the startup-config file) or when you enter commands at the CLI in a configuration
mode.
To change the startup configuration file, you can either save the running-configuration file to the startup
configuration using the copy running-config startup-config command or copy a configuration file from a
file server to the startup configuration.
Types of Configuration Files
The Cisco NX-OS software has two types of configuration files, running configuration and startup configuration.
The device uses the startup configuration (startup-config) during device startup to configure the software
features. The running configuration (running-config) contains the current changes that you make to the
startup-configuration file. The two configuration files can be different. You might want to change the device
configuration for a short time period rather than permanently. In this case, you would change the running
configuration by using commands in global configuration mode but not save the changes to the startup
configuration.
To change the running configuration, use the configure terminal command to enter global configuration
mode. As you use the Cisco NX-OS configuration modes, commands generally are executed immediately
Cisco Nexus 5500 Series NX-OS Fundamentals Configuration Guide, Release 7.x
OL-30890-01 123
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