Asr 5500 System Administration Guide, Staros Release 21.4 - Cisco ASR 5000 Series Administration Manual

Understanding Configuration Files
Pipes ( | ), used with the grep and more keywords, can potentially cause errors in configuration file
Important
processing. Therefore, the system automatically ignores keywords with pipes during processing.
Always save configuration files in UNIX format. Failure to do so can result in errors that prevent
Important
configuration file processing.
The commands and configuration data within the file are organized and formatted just as they would be if
they were being entered at the CLI prompt. For example, if you wanted to create a context called source in
the CLI, you would enter the following commands at their respective prompts:
[local]
[local]
[source]
To create a context called source using a configuration file, you would use a text editor to create a new file
that consists of the following:
config
context source
end
There are several important things to consider when using configuration files:
• The system automatically applies a configuration file at the end of the boot process. After the system
boots up for the first time, a configuration file that you have created and that is tailored to your network
needs, can be applied. To make the system use your configuration file, modify the system's boot
parameters according to the instructions located in Software Management Operations.
• In addition to being applied during the boot process, you can also apply configuration files manually at
any time by executing the appropriate commands at the CLI prompt. Refer to the instructions in Software
Management Operations.
Important
• Configuration files can be stored in any of the following locations:
• Each time you save configuration changes you made during a CLI session, you can save those settings
to a file which you can use as a configuration file.

ASR 5500 System Administration Guide, StarOS Release 21.4

12
host_name config
#
host_name context source
(config)#
host_name
(config-ctx)#
When you apply a configuration file after the boot process, the file does not delete the
configuration loaded as part of the boot process. Only those commands that are duplicated
are overwritten.
• USB Memory Stick: Supported via a USB port on the active MIO (/usb1).
• Network Server: Any workstation or server on the network that the system can access using the
Secure File Transfer Protocol (SFTP). This is recommended for large network deployments in
which multiple systems require the same configuration.
• /flash: a solid-state device with limited storage.
• /hd-raid: internal RAID storage.
end
System Operation and Configuration