System Management
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Basic System Configuration Guide
3HE 11010 AAAC TQZZA Edition: 01
6.8 System Management Configuration
6.8.1 Saving Configurations
Whenever configuration changes are made, the modified configuration must be
saved so that the changes will not be lost when the system is rebooted. The system
uses the configuration and image files, as well as other operational parameters
necessary for system initialization, according to the locations specified in the boot
option file (BOF) parameters. For more information about boot option files, see Boot
Options.
Configuration files are saved by executing explicit or implicit command syntax.
• An explicit save writes the configuration to the location specified in the save
command syntax (the file-url option).
• An implicit save writes the configuration to the file specified in the primary
configuration location.
If the file-url option is not specified in the save command syntax, the system
attempts to save the current configuration to the current BOF primary
configuration source. If the primary configuration source (path and/or filename)
changed since the last boot, the new configuration source is used.
The save command includes an option to save both default and non-default
configuration parameters (the detail option).
The index option specifies that the system preserves system indexes when a save
command is executed, regardless of the persistent status in the BOF file. During a
subsequent boot, the index file is read along with the configuration file. As a result, a
number of system indexes are preserved between reboots, including the interface
index, LSP IDs, and path IDs. This reduces resynchronizations of the Network
Management System (NMS) with the affected network element.
If the save attempt fails at the destination, an error occurs and is logged. The system
does not try to save the file to the secondary or tertiary configuration sources unless
the path and filename are explicitly named with the save command.
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