Specifying Topology Preferences

You must first configure the communication and authentication settings between the CSD-Topology system and the Connectivity Services Director server by using the Preferences page before you can view the topology, which is a pictorial representation of the baseline network that shows the sites, nodes, interconnecting links, label-switched paths (LSPs) configured over pseudowire links, and services. The settings that you specify on the Preferences page establish the connection between the system on which the Connectivity Services Director application is running and the CSD-Topology server. The CSD-Topology server runs on a virtual machine (CSD-Topology VM), which works in conjunction with Junos OS running on another virtual machine (JunosVM), to use routing protocols to communicate with the network and dynamically learn the network topology. You must configure the Connectivity Services Director application with the IP address of the CSD-Topology server and the login credentials to access the CSD-Topology system. If you do not configure the connection between the CSD-Topology and Connectivity Services Director servers when you navigate to the Topology View, a message is displayed stating that you must first set up the connection before you can view the topology map that shows the interconnections among devices.

1. From the Junos Space user interface, click the System icon on the Connectivity Services Director banner.

   The options that you can configure in System mode are displayed on a drop-down menu.

2. Select Preferences from the drop-down menu to open the Preferences page.

   The Preferences page opens with User Preferences as the default tab.

3. Click the Topology tab to configure topology preference settings.

   The settings that you can configure on the Topology tab are displayed.

4. In the L2 Topology Settings section, do the following:
   1. In the Deleted Link Retention Period (Days) field, drag the slider to the right or left to specify a retention period for the deleted links in the Topology View.

      By default, the deleted links are retained for one day. Drag the slider to the leftmost end of the line to specify the period for which deleted links must be preserved as one day. Drag the slider to the rightmost end of the line to specify the period for which deleted links must be preserved as 365 days or a year, which is the longest duration for which deleted links are preserved.

   2. Select the Disable Autoupdate of Topology check box to disable the automatic updates to the topology and, instead, enable the topology updates to be manually triggered by the user.

      By default, automatic updates to the topology are disabled.

5. In the L3 Topology Settings section, do the following:
   1. Select the Use PCEP check box to use the Path Computation Element Protocol (PCEP) for discovery of LSPs. PCEP enables communication between a PCC and the CSD-Topology to learn about the network and LSP path state and communicate with the Path Computation Clients (PCCs). By default, this check box is not selected.

      If you do not enable this option to use PCEP for discovery of LSPs, Connectivity Services Director discovers the LSPs by parsing the configuration statements and operational command outputs of the devices that it manages.

   2. In the Topology Server field, specify the topology server IP address, which is the IP address of the system on which the CSD-Topology application is running.
   3. In the UserName and Password fields, specify the username and password of the user to allow the Connectivity Services Director to connect to the topology server.
   4. Click Validate beside the Password field, which triggers a task to examine and verify the entered credentials for connecting to the CSD-Topology server.

      A dialog box is displayed to indicate whether the specified credentials are valid or not.

   5. Click OK to close the dialog box. If the login credentials for communicating with the CSD-Topology are invalid, correct the username and password values and revalidate them.
   6. In the Refresh Topology Interval (Days) field, drag the slider right or left to specify the frequency in number of days at which the Layer 3 topology must be refreshed and displayed in the Topology View.

      By default, the topology is refreshed once every day. Drag the slider to the leftmost end of the line to disable the refresh of the topology. Drag the slider to the rightmost end of the line to enable the refresh of topology once every 365 days or a year, which is the largest frequency you can specify for the refresh setting.

6. Click OK to save the settings.

   You are prompted to confirm the changes you made to topology preferences.

7. Click Yes to confirm.

   The Preferences page is closed. A dialog box is displayed to confirm the successful saving of topology preferences. Click OK to close the dialog box.