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Importing Real Server Settings

 

Real servers are application servers used for traffic or server load balancing. The ADC software monitors the servers in the real-server group and the load-balanced applications running on them. If a router detects that a server or application has failed, it will not direct any new connection requests to that server. An adc-instance includes a complete set of ADC definitions: real-servers, groups of servers, virtual servers using virtual IP addresses, and virtual services accessed by clients.

Real servers are bound to real server groups. The criteria that you specify for real servers, such as weight and maximum and minimum connection thresholds, apply to the server load balancing algorithms that you specify for the real server groups. Server load balancing (SLB) uses the algorithms as it determines which real servers are to be assigned client requests. You also specify a ramp-up time, which is the period of time that it takes to reach the maximum connection threshold for the real server.

To import a real server:

  1. From the View selector, select Service View. The workspaces that are applicable to this view are displayed.
  2. From the Junos Space user interface, click the Build icon on the Edge Services Director banner.

    The functionalities that you can configure in this mode are displayed in the task pane.
  3. Select Object Builder from the task pane.

    The Object Builder page is displayed.

  4. Click the plus sign (+) next to Object Builder in the task pane to expand the tree and display the list of objects.
  5. From the task pane, select Real Servers to open the Real Servers page on the right pane. The list of previously imported objects is displayed.

    To filter and sort the display of objects, enter the name of the object as a match criterion in the Search box and click the Search icon. The page refreshes to display only the object names that match with the search term. You can use the paging controls to navigate across multiple pages of objects as necessary.

  6. Click the Import icon.

    The Add to Object Builder dialog box is displayed.

  7. Do one of the following for the Import section:
    • Select the From Existing Service Gateway radio button if you want to import the real server from SDGs that are present in the Edge Services Director database.

    • Select the From XML radio button if you want to import the real server from an XML configuration file on an external system.

  8. If you selected the option to import the object from SDGs, do the following:
    • Click the Normal View tab to view the list of SDGs. You can search for specific SDGs by entering a search item and clicking the Search icon.

      Alternatively, click the Group View tab to view the list of SDG groups. You can search for specific SDG groups by entering a search item and clicking the Search icon.

    • Click the plus sign (+) next to the All Service Gateways item to expand the tree structure that displays the list of SDGs or SDG groups. If the SDG pair is configured, you can select one of the devices, master or standby, from which you want to import the object.

      Alternatively, if you selected the Group View tab, you can select an SDG from the groups displayed from which you want to import the object.

    • Click Import. The object is added to the database and can be used during configuration of services or policies.

  9. If you selected the option to import from an XML file, do the following:
    • Click Browse beside the File Name field to navigate to the path where an XML file is available to be imported.

    • Click Import. The object is added to the database and can be used during configuration of services or policies.