Managing Nodes in the Fabric

You can deploy one or more Junos Space appliances or virtual appliances to create a scalable fabric. As the number of devices on your network expands, you can add nodes to the fabric to manage the increased workload. Each Junos Space appliance and virtual appliance with the complete Junos Space software is represented as a single node in the fabric. By default, the Junos Space fabric contains a single node that provides complete Junos Space management functionality. Junos Space automatically adds the first node to the fabric and uses the logical node name that you assign to the appliance or virtual appliance when you configure the first appliance (node) in a cluster (fabric). For each additional appliance or virtual appliance you deploy, you must add the node in Junos Space to represent the appliance or virtual appliance in the fabric.

Adding a Node

You can add one or more nodes to the existing Junos Space fabric, but you can add only one node at a time.

To add a node to the Junos Space fabric:

  1. From the task ribbon, select the Administration workspace.
  2. From the task ribbon, select the Manage Fabric icon.
  3. From the task ribbon, select the Add Fabric Node task.

    The Add Fabric Node screen is displayed.


    Image s600222.gif
  4. In the Name field, enter a name for the node.
  5. In the IP address field, enter the IP address of the Junos Space appliance or virtual appliance.
  6. Schedule the Add Fabric Node operation:

    • Clear the Schedule at a later time check box (the default) to initiate the add node operation when you complete 7 of this procedure.
    • Select the Schedule at a later time check box to specify a later start date and time for the add node operation.

    Note: The selected time in the scheduler corresponds to Junos Space server time but is mapped to the local time zone of the client computer.

  7. Click Add to add the node to the fabric.

    The node is added to the fabric and is displayed in the Junos Space user interface and database. When you add a node, the node functions are automatically assigned by Junos Space. By default, the first and second nodes added to a fabric perform all the following functions:

    • Database— for processing database requests (create, read, update, and delete operations)
    • Load Balancer— for processing HTTP requests from remote browsers and NBI clients
    • Application Logic— for processing back-end business logic (Junos Space service requests), and data manipulation language (DML) workload (device connectivity, device events, and logging)

    By default, the third node, and all subsequent nodes, added to a fabric perform only the Application Logic function.