Interactive Map Features
The topology map is interactive, meaning that you can use features within the map itself to customize the map and network information panes. The map uses a geographic coordinate reference system. Some features enabled by that system include:
Constrained zooming: NorthStar Controller performs coordinate checking so the view is constrained to the coordinates of the earth.
World wrapping/map wrapping: Scrolling the map in one direction is like spinning a globe. This enables representation of links across the pacific, for example.
NorthStar Controller draws links as continuous straight lines between two points. This means links will not display screen wrapping behavior because this requires a third point of reference to determine the intended depiction. But you can adjust your field of view so the intended link display is shown on the topology.
The following sections describe additional map features and functionality:
Table 1: Right-Click Options for Nodes or Groups
Filter in Node Table
Filters the nodes displayed in the network information pane to display only the selected node(s) or node group(s).
Node SIDs from selected node
Labels the nodes in the topology with the node SIDs from the perspective of the node on which you right-clicked.
Opens the Configuration Viewer, displaying the configuration of the node on which you right-clicked. See Configuration Viewer for prerequisites for the configuration to be available.
Opens a new window displaying the neighbors of the node on which you right-clicked.
Tunnels On or Thru Node
Filters the tunnels displayed in the network information pane to include only those that meet the On or Thru Node criteria.
Tunnels Starting at Node
Filters the tunnels displayed in the network information pane to include only those that meet the Starting at Node criteria.
Tunnels Ending at Node
Filters the tunnels displayed in the network information pane to include only those that meet the Ending at Node criteria.
Group selected nodes
Prompts you to give the group of nodes a name, after which the group can be expanded or collapsed on the topology map. This is a shortcut to the Layout > Group selected nodes function.
Ungroup selected nodes
Ungroups the nodes in the selected group. This is a shortcut to the Layout > Ungroup selected nodes function.
Ungroups the nodes in all groups. This is a shortcut to the Layout > Ungroup All function.
Circle selected nodes
Arranges the selected nodes in a roughly circular pattern with the nodes and links separated as much as possible. This is a shortcut to the Layout > Circle selected nodes function.
Distribute selected nodes
Forces the selected elements away from each other and minimizes overlap. This is a shortcut to the Layout > Distribute selected nodes function.
Straighten selected nodes
Aligns the selected nodes in a linear pattern. This is a shortcut to the Layout > Straighten selected nodes function.
Filter in Link Table
Filters the tunnels displayed in the network information pane to display only the selected link.
Tunnels On or Thru Link
Filters the tunnels displayed in the network information pane to include only those that meet the On or Thru Link criteria.
View Link Events
Opens a new window in which you select the time range for the events you wish to view. Click Submit to open the Events window.
View Interface Traffic
Opens a new tab in the network information table at the bottom of the window, displaying the interface traffic.
View Interface Delay
Opens a new tab in the network information table at the bottom of the window, displaying interface delay over time.
View Packet Loss
Opens a new tab in the network information table at the bottom of the window, displaying packet loss statistics.
To clear the tunnel filter so that all tunnels are again displayed, click a different tab (Node, for example), and then click the Tunnel tab again.
Table 3: Right-Click Options for the Topology Map as a Whole
Distribute All Nodes
Distributes all the nodes in the map, pushing elements away from each other and minimizing overlap. This is a shortcut to selecting all nodes and navigating to Layout>Distribute selected nodes.
Save Default Map Layout
Saves the current layout as your default. The default layout is displayed when you first log in to NorthStar Controller. If you already have a default layout, this function overrides the existing default. You can also designate a default layout by navigating to Layout>Manage Layouts.
Select All Nodes
Selects all nodes on the topology map. This is a shortcut to using shift-left-click to create a selection box around all nodes or individually shift-clicking on all nodes.
Refreshes the display of link colors based on RSVP utilization.
Note: Updates are periodically pushed to the client by the server.
Reloads the network to update the display.
Topology Menu Bar
On the right side of the topology window is a menu bar offering various topology settings, as shown in Figure 4.
From the menu bar, you can:
Center the topology in the window (target icon).
Enlarge the topology in the window (plus symbol).
Reduce the size of the topology in the window (minus symbol).
Access the topology settings window (tools icon).
Topology Settings Window
Access the Topology Settings window by clicking on the tools icon in the upper right corner of the topology window. Figure 5 shows the tools icon.
The Topology Settings window contains many topology display settings, all in one place. Figure 6 shows the Topology Settings window with the five tabs that group related settings.
On the Options tab, you can select as many settings as you like by clicking the associated check boxes.
A couple of these settings might not be self-explanatory:
Hide Partially Visible Links
When selected, this option removes from the display any links for which both end nodes are not within the field of view. This is useful for focusing on a subset of a large network.
Center on Selected Node from Table
With this option enabled, when you click on a node entry in the network information table (Node tab), the topology automatically centers the view on that selected node.
The Node Label tab offers options for labeling the nodes on the topology, as shown in Figure 7.
Only one node labeling option at a time can be in effect. Click the radio button beside your selection to choose it. Be sure you have also selected Show Node Labels in the Options tab.
The Link Label tab offers options for labeling the links in the topology, as shown in Figure 8.
Only one link labeling option at a time can be in effect. Click the radio button beside your selection to choose it. Be sure you have also selected Show Link Labels in the Options tab.
In the Font tab, you can select the size of the text used for labels in the topology, as shown in Figure 9.
In the Map tab, shown in Figure 10, you can opt to have the world map displayed, with or without graticules (a grid of lines parallel to meridians of longitude and parallels of latitude) and labeling of major populated places. You can also choose a light or dark map background.
Even if you deselect Show World Map, the topology still behaves according to geographical coordinates in terms of displaying the topology within the field of view.
Figure 11 shows an example of the light and dark map styles.