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Junos Space Virtual Appliance Overview

The Junos Space Virtual Appliance consists of preconfigured Junos Space Network Management Platform software with a built-in operating system and application stack that is easy to deploy, manage, and maintain.

A Junos Space Virtual Appliance includes the same software and all the functionality available in a Junos Space physical appliance. However, you must deploy the virtual appliance on a VMware ESX, VMWare ESXi or KVM server, which provides a CPU, hard disk, RAM, and a network controller, but requires installation of an operating system and applications to become fully functional.

Just as you can install additional physical appliances to create a fabric to provide scalability and availability, you can deploy multiple virtual appliances to create a fabric that provides the same scalability and high availability as a fabric of physical appliances.

A Junos Space fabric can contain only physical appliances ( JA2500), only virtual appliances, or a combination of both physical and virtual appliances.

Configuring an NTP Time Source for Each Appliance Overview

To ensure consistent behavior among all nodes in a multinode fabric, the time on each node must be synchronized with every other node in the fabric. When you configure the first Junos Space Virtual Appliance with a Network Time Protocol (NTP) server, you must ensure that, if the first node (which is used to synchronize time for all nodes in the fabric) goes down, all the other nodes in the fabric remain synchronized. Additional nodes installed in the same fabric automatically get their time setting from the first node in the fabric without any additional NTP server configuration.


By default, Junos Space Network Management Platform synchronizes the local time zone of the client computer with the time zone of the server so that the Web user interface displays the Junos Space server time in the local time zone. However, the CLI server displays time as per the time zone configured on the Junos Space server.

To ensure that time remains synchronized across all nodes in a fabric, we strongly recommend that you add an NTP server to the first appliance (physical or virtual) during the initial setup.


You must add the NTP server before you add the appliance or node to the fabric from the Junos Space user interface.