Juniper. Обновление коммутатора qfx5100

• Скачиваем прошивку jinstall-host-qfx-5-20.3R1.8-signed.tgz
• Подключаемся по SFTP и закачиваем прошивку в папку /var/tmp/
• file list /var/tmp/
• show version
  

  QFX@qfx5100-1> show version 
  fpc0:
  --------------------------------------------------------------------------
  Hostname: qfx5100-1
  Model: qfx5100-48s-6q
  Junos: 19.1R1.6 limited
  JUNOS Base OS boot [19.1R1.6]
  JUNOS Base OS Software Suite [19.1R1.6]
  JUNOS Online Documentation [19.1R1.6]
  JUNOS Crypto Software Suite [19.1R1.6]
  JUNOS Kernel Software Suite [19.1R1.6]
  JUNOS Packet Forwarding Engine Support (qfx-ex-x86-32) [19.1R1.6]
  JUNOS Routing Software Suite [19.1R1.6]
  JUNOS SDN Software Suite [19.1R1.6]
  JUNOS jsd [i386-19.1R1.6-jet-1]
  JUNOS Enterprise Software Suite [19.1R1.6]
  JUNOS Web Management Platform Package [19.1R1.6]
  JUNOS Openconfig [19.1R1.6]
  JUNOS py-base-i386 [19.1R1.6]
  JUNOS py-extensions-i386 [19.1R1.6]
  Puppet on JUNOS Application [3.6.1_3.0_i386]
  CHEF client bundle [11.10.4_2.0_i386]
  JUNOS Host Software [19.1R1.6]
  Junos for Automation Enhancement
  

• request system software add /var/tmp/jinstall-host-qfx-5-20.3R1.8-signed.tgz force-host reboot
• show version

  QFX@qfx5100-1> show version 
  fpc0:
  --------------------------------------------------------------------------
  Hostname: qfx5100-1
  Model: qfx5100-48s-6q
  Junos: 20.3R1.8
  JUNOS py-extensions2-i386 [20.3R1.8]
  JUNOS py-extensions-i386 [20.3R1.8]
  JUNOS py-base2-i386 [20.3R1.8]
  JUNOS py-base-i386 [20.3R1.8]
  JUNOS Web Management Platform Package [20.3R1.8]
  JUNOS Openconfig [20.3R1.8]
  JUNOS Base OS boot [20.3R1.8]
  JUNOS Enterprise Software Suite [20.3R1.8]
  JUNOS SDN Software Suite [20.3R1.8]
  JUNOS jsd [i386-20.3R1.8-jet-1]
  JUNOS Routing Software Suite [20.3R1.8]
  JUNOS Packet Forwarding Engine Support (qfx-ex-x86-32) [20.3R1.8]
  JUNOS Kernel Software Suite [20.3R1.8]
  JUNOS Online Documentation [20.3R1.8]
  JUNOS Crypto Software Suite [20.3R1.8]
  JUNOS Crypto Software Suite [20.3R1.8]
  JUNOS Base OS Software Suite [20.3R1.8]
  JUNOS Host Software [20.3R1.8]

Откат:

request system software rollback 

После ребута проверяем версию:

show version