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Creating a Logical System (LSYS)

For detailed information about using logical systems on Juniper Networks security devices, see Junos OS Logical Systems Configuration Guide for Security Devices.

Logical systems for SRX Series devices enable you to partition a single device into secure contexts. Each logical system has its own discrete administrative domain, logical interfaces, routing instances, security firewall and other security features.


You must create a LSYS profile on the device before creating a logical system. To create a LSYS profile on a device from Junos Space Platform, deploy the configuration to create a LSYS profile by using Junos Space Platform features such as device templates or CLI Configlets. To create a LSYS profile by using the Quick Templates feature, see Creating a Quick Template and Deploying a Quick Template.

To create a new logical system on a physical device:

  1. On the Junos Space Network Management Platform user interface, select Devices > Device Management.

    The Device Management page appears.

  2. Select a device for which you want to create a logical system and then select Device Operations > Create LSYS from the Actions menu.

    The New Logical System pop-up window is displayed.

  3. In the LSYS device name field, enter a user-defined name for the new logical system.
  4. From the LSYS profile drop-down list, choose a logical system security profile for the new logical system.

    If you have not created a LSYS profile on the device, the drop-down list will not display any LSYS profiles.

  5. Click Finish to create the new logical system.