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Understanding Zero Touch Provisioning in Network Director

Zero touch provisioning allows you to provision new Juniper Networks switches in your network automatically—without manual intervention. When you physically connect a switch to a network and boot it with the factory-default configuration, the switch attempts to upgrade the Junos OS software automatically and autoinstall a configuration file from the network. Use the Zero Touch Provisioning wizard to create a profile that applies all the configurations to a Dynamic Host Configuration Protocol (DHCP) server that you configure. You can apply one or more profiles to a DHCP server.

After you enable zero touch provisioning for a DHCP server that is part of a given subnet in your network, and connect a new switch to that subnet, the following series of events occurs:

  1. The switch contacts the DHCP server to obtain an IP address. The DHCP server assigns an IP address to the switch. The DHCP server also passes on the location of the software image, and the configuration file to the switch. This information is passed on to the DHCP server from Network Director when you create and save a zero touch provisioning profile.

  2. The switch uses this information to locate the software image, and the configuration file. These files are stored in an FTP, TFTP, or an HTTP server.

  3. The switch then upgrades the operating system version by using the software image and loads the configuration file.

For more information on zero touch provisioning for switches, see Understanding Zero Touch Provisioning.