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Monitoring Port Utilization

Network Director provides information about port utilization in either one of two places, depending on the node you select in the View pane:

  • Port Utilization monitor—This monitor, available in the Summary tab, provides a bar chart that shows the aggregate utilization of the ports on a device or devices over a period of time that you select. For more information about using the Port Utilization monitor, see Port Utilization Monitor.
  • Port Utilization task—This task, available from View > Port Utilization in the Tasks pane of the Summary or Traffic tabs, provides a bar chart similar to the Port Utilization monitor bar chart. Unlike the Port Utilization monitor, it also enables you to obtain information on individual port utilization over time when you have selected an individual device or Layer 3 Fabric in the View pane.

This topic describes the Port Utilization task. It describes:

How to Access the Port Utilization Task

Procedure

  1. Click Monitor in the Network Director banner.
  2. Select a node in the View pane that contains the ports whose utilization you want to monitor.
  3. Select the Summary or Traffic tab.
  4. In the Tasks pane, select View > Port Utilization.

    If you have selected a node that contains more than one device, the Port Utilization Details window opens. For information about this window, see Port Utilization Details Window.

    If you have selected an individual device, the Utilization for Device window opens. For information about this window, see Utilization for Device Window.

    If you have selected a fabric device such as Junos Fusion, Layer 3 Fabric, Virtual Chassis Fabric, or a QFabric device, the Utilization for Fabric Device window opens. For information about this window, see Utilization for Fabric Devices Window.

Port Utilization Details Window

This window provides a bar chart showing the aggregate port utilization trend for the devices within the selected scope.

Each bar in the bar chart represents the overall port utilization for all the devices at a polling interval. The vertical axis shows the number of ports polled. The horizontal axis shows the time when each poll was taken.

Each bar is divided into the following colored sections to indicate the distribution of port utilization at the polling interval:

You can perform the following actions on the bar chart:

Utilization for Device Window

The Utilization for Device window shows the port utilization trend for individual devices and ports. It is available when you select a individual device in the View pane.

The Utilization for Device window provides two views of port utilization:

The Device view is the default view. Click Port to change to the Port view.

Device View

The Device view provides a bar chart that shows the trend of overall port use on the device. Each bar represents the overall port utilization at a polling interval. The vertical axis shows the number of ports polled. The horizontal axis shows the time when each poll was taken.

Each bar is divided into the following colored sections to indicate the distribution of port utilization at the polling interval:

You can perform the following actions in Device view:

Port View

The Port view provides utilization heat maps of the ports on the device—one heat map for access ports and another for uplink ports. In the heat maps, each port on the device is represented by a box that is color-coded to indicate the level of port utilization. Cooler colors (for example, green) indicate lower port utilization , while hotter colors (for example, red) indicate higher port utilization.

Click a port box to display a utilization trend chart for that individual port.

You can perform the following actions in the Port view:

Utilization for Fabric Devices Window

The Utilization for Fabric Devices window provides information about port utilization for the devices and ports within a fabric device such as a Junos Fusion, Layer 3 Fabric, Virtual Chassis Fabric, or a QFabric device. It is available when you select a fabric device from the Fabrics container in the View pane.

The top part of the Utilization for Fabric Devices window displays a heat map of the devices in the fabric. Each device in the fabric is shown as either a spine or leaf device (for Layer 3 Fabric or Virtual Chassis Fabric) or aggregation device and satellite device (for Junos Fusion devices) and is color-coded to show the overall port utilization on the device.

You can interact with this fabric-level heat map as follows:

You can select two different views of the port utilization on the device:

The Device view is the default view. Click Port to change to the Port view.

Device View

The Device view provides a bar chart that shows the trend of overall port use on the selected device. Each bar represents the overall port utilization at a polling interval. The vertical axis shows the number of ports polled. The horizontal axis shows the time when each poll was taken.

Each bar is divided into the following colored sections to indicate the distribution of port utilization at the polling interval:

You can perform the following actions on the bar chart:

Port View

The Port view provides utilization heat maps of the ports on the device—one heat map for access ports and another for uplink ports. In the heat maps, each port on the device is represented by a box that is color-coded to indicate the level of port utilization. Cooler colors (for example, green) indicate lower port utilization , while hotter colors (for example, red) indicate higher port utilization.

You can perform the following actions on the device heat map:

The port utilization trend chart shows the utilization trend for the selected port. You can:

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