Black Box LWN602A User Manual page 134

Chapter 10: SmartPath Operating System (OS)
When a SmartPath AP ships from the factory, it is loaded with a default config file, which acts initially as the running and current
configs. If you enter and save any commands, the SmartPath AP then stores a separate config file as the current config,
combining the default settings with the commands you entered and saved. If you want to return to the default settings, you can
press the reset button or enter the reset config command. A SmartPath AP might also return to the default config if both the
current and backup configs fail to load, which might happen if you update the SmartPathOS firmware to an image that cannot
work with either config.
NOTE: You can disable the ability of the reset button to reset the configuration by entering this command:
no reset-button reset-config-enable
Reverting to the default config can be very useful, especially in the early stages when you are still learning about SmartPathOS
and are likely to be experimenting with different settings. However, retaining the ability of a SmartPath AP to revert to its default
settings after its deployment can present a problem if it is a mesh point in a cluster. If the SmartPath AP reverts to the default
config, it will not be able to rejoin its cluster. Consequently, it will not be able to get an IP address through DHCP nor be able to
communicate with SmartPath EMS (assuming that you are managing it through SmartPath EMS). In this case, you would have to
make a serial connection to the console port on the SmartPath AP and reconfigure its cluster settings through the CLI.
To avoid the above situation, you can use a bootstrap config. A bootstrap config is typically a small config file that comes last in
the boot order (current – backup – bootstrap) and that replaces the default config as the one a SmartPath AP loads when you
reset the configuration. See Figure 10-6.
NOTE: Be careful to remember the login name and password defined in the bootstrap config file. If they become lost or
forgotten, you must obtain a one-time login key from Black Box technical support. To get the key, you must already
have had a support contract in place
Configuration Failover Behavior
Current Config
If the SmartPath AP cannot load either the current or
backup config files, it deletes them, reboots, and loads
the bootstrap config— if present—or the default config.
Resetting the Configuration
When you enter the reset config command or press the
reset button on the front panel of the SmartPath AP device,
the SmartPath AP deletes the previous current config,
reboots, and loads the bootstrap config— if present—or the
default config.
Figure 10-6. Relationship of current, backup, bootstrap, and default config files.
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Failover
Current Config
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Backup Config
Failover
. . . or if there is no bootstrap config . . .
reset config
. . . or if there is no bootstrap config . . .
Bootstrap Config
Default Config
Bootstrap Config
Default Config