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Westermo RedFox Series User Manual

Page 93

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Westermo OS Management Guide

Version 4.17.0-0

Timings: There are two timings related to Bootstrap and USB services:

Delayed USB backup/restore and USB deploy: (Non-configurable) A

USB media not plugged in (or detected) when the device boots up
can still be used to backup/restore or deploy the device configura-
tion up to 30 seconds after power on.

USB bootstrap timeout: (Configurable) The USB bootstrap timeout

halts boot for specified number of seconds, waiting for USB media
to settle and be detected by the device. Before the timeout has
elapsed and no media has been detected the device is unreachable
with all ports remaining in blocking. Default: Disabled (i.e., zero
delay)

Hint

Setting a ”USB bootstrap timeout” is useful to avoid a situation
where the unit first applies the configuration from on-board flash,
and afterwards detects the USB stick and applies USB restore or
deploy (”Delayed USB backup/restore and USB deploy”).

Enable/Disable: USB bootstrap services can be disabled. Disabling USB

bootstrap services implies disabling USB Deployment and automatic
USB Backup & Restore features. Manual backup and restore to/from
a USB stick is still possible. Default: Enabled

Warning

USB bootstrap services are enabled by default for ease of use and
robustness. However, it gives users with physical access to the
switch the opportunity to modify or retrieve the configuration with-
out logging in. If unauthorised personnel have physical access to
the unit it is recommended to disable USB bootstrap services for
security purposes.

Below is an example of how to disable USB Bootstrap services.

➞ 2015 Westermo Teleindustri AB

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