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- The name and status of the DTC object. For more information about the possible statuses, see Understanding DTC Object Status.
- Load Balancing Method: This is displayed only for LBDN objects.
- Preferred Load Balancing Method: This is displayed only for pool objects.
- Alternate Load Balancing Method: This is displayed only for pool objects.
- Host: The domain name or IP address of a server object.
- Last Updated: The timestamp when the object was last discovered.
Health Monitors: This
is displayed only for server objects. It displays the status of each of the pool's health monitors for a specific server.displays health monitors status for pools and servers.
The health status displayed for a DTC server includes health monitors assigned through the pool as well as individual health monitors per IP address or domain name of the server, if assigned. For example, monitor_name(monitor_type) for a pool monitor, and IP_address_or_FQDN(monitor_type) for an individual server monitor.
- Ratio: Dynamic: In DTC pools and servers visualization, this displays traffic distribution across members and servers with the Ratio: Dynamic load balancing method applied.
- Number of Pools: Shows the number of pools for the LBDN.
- Number of Servers: Shows the number of servers for the pool.
- Used by these LBDNs: Shows all LBDNs that use the pool.
- Used by these Pools: Shows all pools that use the server.
From a DTC object tooltip, you can perform certain actions on the object. For more information, see the next section,
Working with the Visualization Panel.
To hide or show the visualization panel, click Hide Visualization or Show Visualization in the Toolbar.
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You can also add the default visualization in the visualization panel, and then define the DTC objects. For more information, see Adding Default Visualization.
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Note: Grid Manager can display a maximum of 100 nodes for each level associated with the currently visualized node.
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The DTC object status can be one of the following:
Icon | Status and Meaning |
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| Running: The object is fully available and operational. |
| Warning: The object has a warning message. You can check the syslog for any messages. |
| Error: The object has an error. You can check the syslog for any messages. |
| Disabled: The object is disabled due to a configuration setting. This may include a few different reasons, such as the "Disable" flag being set, the DNS service not running on the selected member, a zone not assigned to an LBDN, or the LBDN not associated with a zone for the selected DTC member. |
| Unknown: The DTC object status has not yet been determined. |
| Unlicensed: The object does not have a DNS Traffic Control license. |
It may take a few minutes for the status of an object to be updated after a configuration change.
Grid Manager calculates the status differently for the DTC objects list view and the visualization. For information, see the next section, Calculating the Status.
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- Server: Aggregated status from all pool monitoring across all DTC Grid members.
- Pool: Aggregated status for all its servers across all DTC Grid members.
- LBDN: Aggregated status for all its pools across all DTC Grid members.
For the visualization panel, the status is calculated as follows:
- Server: Status from selected pool monitoring for selected DTC Grid member.
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- Pool: Aggregated status for all its servers for selected DTC Grid member.
- LBDN: Aggregated status for all its pools for selected DTC Grid member.
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Note: If a pool has no health monitors configured, then the servers and pool report a status of 'Running'.
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- Resize the visualization panel in relation to the DTC objects list view by dragging the vertical separator between the panel and the list view.
- Filter the visualization by Grid members associated to DTC objects through LBDNs: In the Member drop-down list, select All Members or a specific member. For more information about how the object status is determined for all members and for a specific member, see Calculating the Status4. Note that the appliance displays only members that have the DNS Traffic Control license.
- Filter by the DTC status: All DTC Status or Non-Running only. You can combine this filter with the members filter.
- Zoom the map in and out by moving the Zoom slider. You can also zoom in and out by using the mouse wheel.
- Click the Adjust tree size to window size icon to adjust the tree size after you zoomed it in our out.
- Change the tree orientation by clicking the Change Tree Orientation icon. The default orientation is vertical.
- Click the Expand Visualization icon to open the DTC structure in a separate window. Alternatively, you can click the Action icon next to the required DTC object in the table and select Expand Visualization.
- Click Show Legend/Hide Legend to show or hide the legend when the visualization is expanded.
- Click the Refresh icon to refresh the tree. You can also select the Auto Refresh check box to turn on auto-refresh.
- Click anywhere in the tree and hold your mouse to drag the tree to a desired location in the panel or window.
- Hover your mouse over an LDBN to display the tooltip and do the following:
- Test the LBDN.
- Add an existing pool to the LBDN.
- Add a new pool to the LBDN.
- Disable or enable the LBDN.
- Edit the LBDN.
- Delete the LBDN.
- Schedule the deletion of the LBDN.
- Switch to the LBDN visualization mode if you are currently in the pool visualization mode.
- Hover your mouse over a pool to display the tooltip and do the following:
- Add the pool to an LBDN.
- Add an existing server to the pool.
- Add a new server to the pool.
- Disable or enable the pool.
- Edit the pool.
- Delete the pool.
- Switch to the pool visualization mode if you are currently in the LBDN or server visualization mode.
- Hover your mouse over a server to display the tooltip and do the following:
- Add the server to a pool.
- Disable or enable the server.
- Edit the server.
- Delete the server.
- Switch to the server visualization mode if you are currently in the LBDN visualization mode.
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- On the Traffic Control tab, click the arrow next to the Add icon and select Default Visualization.
The default basic DTC objects structure is displayed in the visualization panel. It consists of the default server, pool, and LBDN. By default, they are disabled.
The corresponding server, pool, and LBDN objects are added in the DTC objects list view.
2. Configure the DTC objects in any of the following ways:
- Hover your mouse over an object to display the tooltip, click the required button, and make the necessary configurations.
- In the DTC objects list view, select the required object, click the Edit icon, and make the necessary configurations.
For information about the configurable properties of DTC objects, see Managing DNS Traffic Control Objects
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3. If necessary, configure the topology rulesets, topology database, and DTC health monitors used in your DTC structure. For information, see Defining Topology Rulesets
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, Importing a Topology Database
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, and Using DNS Traffic Control Health Monitors
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correspondingly.
4. After you configured the DTC objects, enable each one of them:
- Hover your mouse over an object.
- Click Enable in the tooltip.
Once all objects are enabled and all necessary service restarts are performed, the whole DTC structure starts working.
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