FS S3900 Series User manual

S3900 SERIES SWITCHES RESET AND RECOVERY SYSTEM CONFIGURATION GUIDE
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S3900 Series Switches Reset and
Recovery System Configuration Guide
Models: S3900-48T4S; S3900-24T4S; S3900-24F4S

S3900 SERIES SWITCHES RESET AND RECOVERY SYSTEM CONFIGURATION GUIDE
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I
Contents
1. Function Introduction..................................................................................................................................................... 1
2. Configuration Considerations........................................................................................................................................1
3. Command Line Reset.......................................................................................................................................................1
3.1 Network topo.............................................................................................................................................................................................. 1
3.2 Configuration Steps....................................................................................................................................................................................1
3.2.1 Connection Equipment.............................................................................................................................................................................. 1
3.2.2 Download Configuration Software............................................................................................................................................................ 1
3.2.3 Switch on and Use Login Software............................................................................................................................................................ 1
3.2.4 Landing Switch........................................................................................................................................................................................... 2
3.2.5 Restore Default Configuration................................................................................................................................................................... 2

S3900 SERIES SWITCHES RESET AND RECOVERY SYSTEM CONFIGURATION GUIDE
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1
1. Function Introduction
Resetting a device usually means restoring the device's configuration to the factory configuration. In some cases, we will need to use the
device reset function, such as a one-click recovery after the switch test is completed.
2. Configuration Considerations
Table 1 shows examples of applicable products and versions.
Series
Product
Support version
S3900 Series
SW
After 1.7.1
3. Command Line Reset
3.1 Network Topo
3.2 Configuration Steps
3.2.1 Connection Equipment
#Connect the PC and the switch to the network cable and the console port. Connect one end of the RJ-45 network cable to the network
card interface of the PC and the other end to the network port of the SW. Connect one end of the console cable USB to the USB port of
the PC. One end of the RJ-45 is connected to the console port on the front panel of the switch.
3.2.2 Download Configuration Software
#After the connection is completed,there we recommend the super terminal, putty or Secure CRT tool to configure the switch.
3.2.3 Switch on and Use Login Software
#Energizing the switch, then open the installed login software, select the serial port of login mode, port through the device manager
to determine. Baud rate :115200,Data bits: 8, Parity: None ,Stop bits: 1.(Reference below)

S3900 SERIES SWITCHES RESET AND RECOVERY SYSTEM CONFIGURATION GUIDE
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2
NOTE: COM Number can be viewed through device manager.(right click on my computer.>manage>device manager>port(COM and LPT）
If it display an unrecognized USB device, please download and install the corresponding driver.
3.2.4 Landing Switch
#After following these steps,press the Enter key on the keyboard and enter the password of the account. At this time, enter the default
username and password admin/admin and then log in to the switch.
3.2.5 Restore Default Configuration
Switch#dir
Unit 1:
File Name Type Status Size Modified
--------------------------------------------------------------------------------
S3900-48T4S-MR-V0171.bin Image Active 20322772 2020-07-22 09:04:28
S3900-48T4S-MR-V0170.bin Image InActive 19712468 2019-12-17 16:31:56
Factory_Default_Config.cfg Config InActive 496 2020-07-06 07:19:33
startup-config Config InActive 2550 2020-07-06 07:19:13
startup1.cfg Config Active 2498 2020-07-06 07:16:53
-------------------------------------------------------------------------------
Flash size: 128 MB
Switch#config t
Switch(config)#boot system config:Factory_Default_Config.cfg
Switch(config)#exit
Switch#delete file unit 1 name startup1.cfg
Switch#reboot
System will be restarted. Continue <y/n>? y
Switch#

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