Introduction to the Task Scheduler
In the NorthStar Controller UI, navigate to Administration > Task Scheduler to manage the NorthStar task types described in Table 1.
The first five of the task types listed are collection tasks. The NorthStar Controller Analytics features require that the Controller periodically connect to the network in order to obtain the configuration of network devices. It uses this information to correlate IP addresses, interfaces, and devices, as well as collecting various types of statistics. Completion of device profiles (Administration > Device Profile) is a prerequisite for successfully running collection tasks.
Table 1: Task Types Managed from the Task Scheduler
Connection to the network in order to obtain the configuration of network devices.
SNMP Traffic Collection
Collection of tunnel and interface traffic via SNMP.
Link Latency Collection
Collection of round trip time (RTT) statistics using a ping operation.
Collection task that creates a network model in a database, for use in the NorthStar Planner. You also have the option to archive the network model.
LDP Traffic Collection
Collection of LDP traffic statistics that track the volume of traffic passing through forwarding equivalence classes. The data can also be imported into the NorthStar Planner for capacity planning and failure simulation studies.
Generation of reports on detailed network traffic information.
Periodically sends a new planned bandwidth for bandwidth sizing-enabled LSPs to the NorthStar PCS. The PCS determines whether it needs to provision the new planned bandwidth with a path that satisfies the new bandwidth requirement.
Container Normalization Task
For information about the container LSP feature in NorthStar, see the NorthStar REST API documentation.
Enables periodic container LSP normalization in NorthStar. The task computes aggregated bandwidth for each container LSP and sends it to the NorthStar Path Computation Server (PCS). The PCS determines whether it needs to add or remove sub-LSPs belonging to the container LSP, based on its new aggregated bandwidth.
Other than requiring this task in the NorthStar UI, the container LSP feature is only accessible through the REST API.
This task type is for system tasks that are launched by NorthStar to run scripts. These tasks are included in the task list for information only–you cannot add or modify them.
Examples of system tasks include:
There is an optional column in the task list that indicates whether each task is a system task. Hover over any column heading, click the down arrow that appears, and highlight Columns to display a list of available columns. Click the check box for System Task to select the System Task column for inclusion in the display.
In the task list, sorting and column selection options become available when you hover over a column heading and click the down arrow that appears. You can also rearrange the columns that are displayed in the task list by clicking and dragging a column heading.