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play_arrow Working With Network Director
- play_arrow About Network Director
  - Understanding Network Director and the Management Life-Cycle Modes
  - Understanding the Network Director User Interface
- play_arrow Installing Network Director
  - Installing Network Director by Manually Downloading the Network Director Application Image
- play_arrow Accessing Network Director
- play_arrow Understanding Network Director System Administration and Preferences
- play_arrow Getting Started with Network Director
  - Getting Started with Junos Space Network Director
play_arrow Working with the Dashboard
- play_arrow About the Dashboard
  - Understanding the Dashboard
- play_arrow Using the Dashboard
  - Using Dashboard Widgets
- play_arrow Dashboard Widget Reference
play_arrow Working in Build Mode
- play_arrow About Build Mode
- play_arrow Discovering Devices
- play_arrow Setting Up Sites and Locations Using the Location View
- play_arrow Building a Topology View of the Network
- play_arrow Creating Custom Device Groups
  - Understanding Custom Device Groups
  - Creating Custom Device Groups
- play_arrow Configuring Quick Templates
  - Understanding Quick Templates
  - Configuring and Managing Quick Templates
- play_arrow Configuring Device Settings
- play_arrow Configuring Authentication, Authorization, and Access for Your Network
- play_arrow Configuring Interfaces and VLANs
- play_arrow Configuring Firewall Filters (ACLs)
  - Understanding Filter Profiles
  - Creating and Managing Wired Filter Profiles
- play_arrow Configuring Class of Service (CoS)
  - Understanding Class of Service (CoS) Profiles
  - Creating and Managing Wired CoS Profiles
- play_arrow Configuring Media Access Control Security (MACsec)
- play_arrow Configuring Link Aggregation Groups (LAGs)
- play_arrow Creating and Managing Fabrics
- play_arrow Configuring VRRP Profiles
  - Understanding VRRP Profiles
  - Creating and Managing VRRP Profiles
- play_arrow Managing Network Devices
play_arrow Working in Deploy Mode
- play_arrow About Deploy Mode
  - Understanding Deploy Mode in Network Director
  - Understanding the Deploy Mode Tasks Pane
- play_arrow Deploying and Managing Device Configurations
- play_arrow Deploying and Managing Software Images
- play_arrow Managing Devices
  - Enabling or Disabling Network Ports on Switches
  - Converting the QSFP+ Ports on QFX Series Devices
- play_arrow Setting Up Zero Touch Provisioning for Devices
  - Understanding Zero Touch Provisioning in Network Director
  - Configuring and Monitoring Zero Touch Provisioning
play_arrow Monitoring Devices and Traffic
- play_arrow About Monitor Mode
  - Understanding Monitor Mode in Network Director
  - Understanding the Monitor Mode Tasks Pane
- play_arrow Monitoring Traffic
- play_arrow Monitoring Client Sessions
- play_arrow Monitoring Devices
- play_arrow Monitoring and Analyzing Fabrics
  - Monitoring Junos Fusion Fabric Systems and Components
- play_arrow Monitoring Virtual Networks
  - Using Monitor Mode for Virtual Devices
  - Viewing vMotion History in Network Director
- play_arrow General Monitoring
- play_arrow Monitor Reference
play_arrow Using Fault Mode
- play_arrow About Fault Mode
  - Understanding Fault Mode in Network Director
  - Understanding the Fault Mode Tasks Pane
- play_arrow Using Fault Mode
- play_arrow Fault Reference
play_arrow Working in Report Mode
- play_arrow About Report Mode
- play_arrow Creating and Managing Reports
- play_arrow Report Reference
play_arrow Working with Network Director Mobile
- play_arrow About Network Director Mobile
  - Overview of Network Director Mobile
- play_arrow Getting Started with Network Director Mobile
- play_arrow Working in the Network Director Mobile Dashboard Mode
  - Monitoring Network-Wide Activity Using Network Director Mobile
  - Network Director Mobile Dashboard Reference
- play_arrow Working in the Network Director Mobile Devices Mode
  - Locating a Device and Viewing Device Properties Using Network Director Mobile
  - Monitoring Sessions on a Device Using Network Director Mobile

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Configuring Network Traffic Analysis

Release: Network Director 7.1

date_range 23-May-23

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Network Traffic Analysis (NTA) is a monitoring technology for high-speed switched or routed networks. Once enabled, Network Director randomly samples network packets and sends the samples to a data learning engine (DLE) for analysis. Network traffic analysis uses packet-based sampling. Network Director samples one packet out of a specified number of packets from an interface enabled for network traffic analysis and sends the packet to the DLE. DLE uses this sampling information to create a picture of the network traffic, which includes the applications that contribute to the traffic, traffic statistics, and the top applications.

You can enable network traffic analysis on all devices.

Before you configure network traffic analysis, ensure that:

You have configured one or more data learning engines to analyze the network traffic.
You have specified the IP address and port number of these DLEs in the System Preferences window. For detailed steps, see the Specifying the Data Learning Engine (DLE) Settings in the Setting Up User and System Preferences topic.

Note:

On devices for which you want to enable NTA, sFlow must not be configured. To verify that the sFlow is not configured, log in to the device CLI and execute the following command and verify the output:

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[root@user ~]# show protocols sflow | display set 

No output is displayed when sFlow is not configured on the device.

Note:

Network Director support the sFlow on physical port only and not in aggregation links or logical ports.

To configure network traffic analysis:

Log in to Network Director.
Under Views, select Logical View, Location View, Device View, or Custom Group View.
Click Deploy in the Network Director banner.
In the Tasks pane, select Configuration Deployment > Enable Network Traffic Analysis.
The Enable Network Traffic Analysis page opens.
Select the check box adjacent to Enable Traffic Analysis on Devices when Port Utilization exceeds certain percentage to enable network traffic analysis. The default port utilization percentage value is 90%. You can change the default value to a value that is appropriate for your network.
Specify the number of packets from which a packet must be sampled in the Sample rate field.
Network Director samples one packet out of a specified number of packets from an interface enabled for network traffic analysis and sends the packet to DLE.

For example, if you configure a sampling rate of 10, one packet is sampled from every 10 packets.
Click Add Devices to add new devices for network traffic analysis.
The Add Devices window opens.
In the Add Devices window, select the devices for which you want to enable network traffic analysis.
Click Add.
Network Director adds the selected devices to the list in the Enable Network Traffic Analysis page.

To remove a device, select a device from the list and click Remove.
Click Save to save the network traffic analysis configuration details.
Network Director initiates traffic analysis when traffic utilization on any interface of the devices added to the Enable Network Traffic Analysis page exceeds the port utilization that you specified. You can view the traffic analysis details from the Monitor mode > Traffic Analysis or the Device & Port Utilization dashboard widget.

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Network Director User Guide

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