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About the Offline Topology Page

To access the Offline Topology page:

  1. Select Planning > Networks > Offline Models.

  2. Select a network model and click Open to view the offline topology map.

On this page, you can view the topology map of your network model, modify the network model by adding network elements (devices, links, demands, interfaces, and tunnels), save the changes that you made to the network model, and run simulation for the failure scenarios that you have created.

The offline topology map page can be divided into three main components:

  • Interactive Topology Map—Enables you to view devices, links, tunnels, and demands across sites in your network and customize the map display. Manage the map view, set device positions on the map, customize device, link labels, and font size using the right-click menu.

    For more information, see View Network Topology Details.

  • Topology Menu Bar—A vertical bar at the top-right corner of the Network Optimization Intent page, which consists of the following icons:

    • Reset icon—Center the topology map so that it zooms to fit the screen.

    • Minus icon—Zoom out (reduce) the topology map.

    • Plus icon—Zoom in (enlarge) the topology map.

    • Switch to Cluster View/Node View icon—Switch to Cluster View from the default Node View and switch back to node view from cluster view.

    • Settings icon—Configure display properties of the topology map.

    For more information, see View Network Topology Details

  • Network Table—Displays detailed information about tunnels, SRLGs, demands, and network elements (devices, links, and interfaces).

    Table 1 lists the tabs on the offline topology map page.

    Click the collapsible arrow icon at the bottom-left of the topology map to display or hide the network table.

    Table 1: Tabs on the Offline Topology Map Page
    Tab Description
    Device

    See About the Device Tab (Planner).
    Link

    See About the Link Tab (Planner).
    Tunnels

    See About the Tunnel Tab (Planner).
    Demands

    See About the Demands Tab (Planner).
    Interfaces

    See About the Interface Tab (Planner).
    SRLGs

    See About the SRLGs Page (Planner)

Tasks You Can Perform

  • Back to Models—Click the Back to Models icon to go back to the Working Models page, where you can view the list of all working models that are available.

  • View the name of the working model— You can view the name of the working model (offline network topology). You cannot edit the name here.

  • Save the changes you have made to your offline network topology—Click the Actions drop-down menu and click Save Model to save the changes you have made to your offline network topology.

  • Update the working model and paths—Use the Update Model and Paths option to simulate the effect of changes in the model. This includes computation of path for tunnels and demands and update of utilization values of links.

    After you make changes to a model, do the following:

    1. Select Actions > Update Model and Paths.

      The Path Computation page appears. This page enables you to choose the next steps that Routing Director must take.

    2. On the Path Computation page, select one of the following options:

      • All (recommended)—Routing Director recomputes paths for all tunnels and demands.

      • Only Unplaced—Routing Director recomputes paths only for newly-added tunnels and demands that do not have the current path information.

      • None—Routing Director does not recompute paths; it only updates parameters, such as bandwidth, link utilization, and so on.

    3. Click Submit.

      The model is saved and the processing of the request to update the model begins.

    4. Once the processing of the update model request has successfully finished, the Reload icon on the offline topology page is enabled. Click the Reload icon.

      Note: Use only the Reload icon and do not reload the browser. The reload icon turns orange when there are computation changes that have not yet been loaded into the model and are not yet visible.

    The updated model is loaded and displayed on the topology map.

  • Simulation—Simulate network element failures to get insights into network resilience and performance impact. Click Simulate drop-down menu to either run an exhaustive failure simulation or what-if failure simulation. For more information, see Exhaustive Failure Simulation or Exhaustive Failure Simulation.

  • View Reports—View the what-if failure simulation report within the offline map. Click Simulation > Reports. The Reports page is displayed. On this page, you can:

    • View the list of all what-if reports. Click the Explorer button to view the list of all what-if reports.

    • View a specific report in detail. Each report will be opened in a separate tab.

    • View original and new paths highlighted on the topology map.

      While viewing the Tunnel Changes and Demand Changes reports, select a row (entry). The original and new paths of the selected row are highlighted on the topology map. The links in the original path are highlighted in pink and those in the new path are highlighted in green. The links that are part of both the new and original path, are highlighted in cyan. the elements that were failed during the simulation are marked with F.

      You can resize and move the Reports page to view these path changes on the topology map.

  • Reload a model—The Reload icon is enabled when the browser (Routing Director UI client) receives a notification about successful processing of the request to trigger Update Model and Paths . Click the icon to update the topology map in your network.

    Note: The Reload icon turns orange when there are computation changes that have not yet been loaded into the model and are not yet visible.

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