Download Software with the default-config Option

Use the firmware download command with the default-config option to download new software, and, after a forced cold reboot, clean up all in-band configuration. In other words, all configuration (except for the mgmt-VRF and the management interface) is removed, including TACACS, RADIUS, AAA, SNMP, syslog, DNS, and telemetry data streaming.

The default-config option is useful when the SLX device is repurposed for a different position in the network.

Caution

When you use the default-config option, traffic is disrupted and the configuration is lost. Save the configuration information before you run the command. You can restore the configuration after upgrade, if needed.
To use the default-config option over an in-band connection, you need a serial port connection to recover or remotely access the device, because all in-band configuration will be removed.

Download the software from the hosting server.

device# firmware download default-config ftp user user pass extreme host 
   10.x.x.x dir builds/slxos20.x.x
Performing system sanity check...
This command will set the configuration to default.
This command will cause a cold/disruptive reboot and will require that existing telnet, 
   secure telnet or SSH sessions be restarted.
Do you want to continue? [y/n]:y

If you enter y after the prompt, the device commits the software automatically upon booting up.

Log back into the device.
If your remote connection to the SLX device was over in-band interfaces, log back in to the device from the management serial connection.

Verify the new software version.

Both partitions on the device or on the modules should contain the new software.

device# show version

SLX-OS Operating System Version: 20.x.x
Copyright (c) 1995-2019 Extreme Networks, Inc.
Firmware name:      20.x.x
Build Time:         21:34:29 Nov  2, 2019
Install Time:       20:29:12 Nov  8, 2019
Kernel:             4.14.67
Control Processor:  Intel(R) Atom(TM) CPU C3758 @ 2.20GHz,  8 cores
Microcode Version:  0x24
Memory Size:        System Total: 15632 MB
System Uptime:      1days 1hrs 29mins 27secs 

Name     Primary/Secondary Versions 
------------------------------------------
SLX-OS   20.x.x
         20.x.x

device#