NetFlow Traffic Analyzer 4.2 Release Notes

Release date: June 3, 2016

These release notes describe the new features, improvements, and fixed issues in NetFlow Traffic Analyzer 4.2. They also provide information about upgrades and describe workarounds for known issues.

If you are looking for previous release notes for NetFlow Traffic Analyzer, see Previous Version documentation.

New features and improvements in NTA 4.2

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NTA 4.2 offers new features and improvements compared to previous releases of NTA.

Newly Supported Flow Technologies

NBAR2 application recognition is now supported for devices enabled for export of NBAR2 data, enabling you to identify applications on your network and plan remediations. NBAR2 is an application classification system that is used with deep packet inspection technologies to provide better visibility into network traffic. You can identify which applications, categories, and subcategories are most active.

NTA now supports monitoring of Cisco Wireless LAN Controllers (WLC) and HP NetStreamer V9. To monitor WLC activity, open the Network > Wireless Summary View in the Orion Web Console.

New NTA Feature

SolarWinds NTA's CBQoS, NBAR2, and WLC reports now include charts.

Performance improvements

Reports, Views, and Detail views that are filtered by specific nodes or interfaces are generated faster.

Other improvements

For features and improvements in Orion Platform 2016.1, see the Orion Platform 2016.1 Release Notes.


New customer installation

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For information about installing NetFlow Traffic Analyzer, see the NTA Installation Guide.

Starting with NTA 4.2, the NTA Flow Storage Database is no longer supported on additional pollers and additional websites, and needs to be installed on a dedicated server.

Before you upgrade

If you are upgrading from a previous version, be aware of the following considerations:

  • When upgrading to NTA 4.2 on the same server with DPA installed, the DPAO piece causes issues with alerting.
  • If you have edited resource properties, the All Groups resource may be empty after upgrading to NTA 4.2.
  • When upgrading to NTA 4.2, using the group by feature for custom properties may return no results, and the data loading may hang or not complete. All regular functionality is unaffected by the issue.
  • If you have written your own code, such as changing SolarWinds .css files or adding .js files, it may be overwritten with the upgrade. Learn more about custom code.
  • Always upgrade NPM first if you have it installed. NPM includes platform features to support all Orion products.
  • If you have SAM without NPM, upgrade SAM first. SAM includes platform features to support all Orion products.
  • Always use the Product Upgrade Advisorto build your upgrade path.

How to upgrade

If you are upgrading from a previous version, use the following resources to plan and implement your upgrade:

  • Use the Product Upgrade Advisor to determine your upgrade path. Based on your current environment and versions, the Product Upgrade Advisor provides an ordered list of how to proceed with the upgrade.
  • Use the NTA Upgrade Guide to upgrade NTA as a single product.
  • Use the multiple products upgrade guide for upgrading NTA and other modules (NPM, SAM, NCM, etc.). Each guide includes checklists and instructions to help you plan and execute your upgrade.

Fixed issues

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NTA 4.2 fixes the following issues.

Case number Description
928460 NTA now correctly reports the number of affected objects in CBQoS alerts.
935547 Long-running updates to a Flow Storage Database backup no longer prevents it from being restored.
894445 The function of selecting an absolute time period from the dropdown, which was nonfunctional on certain browser locales, has been corrected.
880515 NTA now allows you to add an application with the same port and the same destination IP Group but different source IP group.
841572 Managing netflow sources when the interface name contains a line separator is no longer an issue.
795549 Adding a disabled IP Group generates the proper update to the Flow Storage Database.
870376, 828282, 867134 NTA now properly executes automatic backups that are scheduled to run at midnight.
824704, 856856 The Flow Storage Database no longer crashes when all tmp files in the temp folder are used.
822120, 809848, 627993 NTA has improved performance when generating CBQoS Alerts & Reports. See also, NTA New Feature.
943855, 779761, 628887, 678711, 502372 NTA resources are properly ;respecting group-based view limitation settings.
631610 A situation in which some Flow Storage Database partitions may not have been removed after a retention period has been corrected.

Fixed issues in Orion Platform 2016.1

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For fixed issues in Orion Platform 2016.1, see the Orion Platform Release Notes.


Known issues

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Conflict with NTA and NTA Flow Storage Database on same server
Issue: NTA recommends installing the NTA Flow Storage Database and NTA on different servers. Gaps can occur in flow data when NTA and the NTA Flow Storage Database are installed on the same server, which can result from insufficient resources available on the server.
Resolution/Work-around: To resolve this conflict, move your NTA Flow Storage Database to a separate server. For more information, see Moving NTA Flow Storage Database.

 

The All Groups resource is empty after an upgrade
Issue: The All Groups resource is empty after an upgrade if you’ve edited the resource properties to group by a property before the upgrade.
Resolution/Work-around: Edit the resource and save your changes.

 

Cannot group custom properties by categories
Issue: When group custom properties by categories, no results are returned and the loading screen does not complete.
Resolution/Work-around: Search for the category.

End of support

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This version of NetFlow Traffic Analyzer no longer supports the following platforms and features.

Type Details
Windows Server 2003 NTA 4.2.1 no longer supports Windows Server 2003 on the server hosting the NTA installation or the NTA Flow Storage Database.
32-bit operating system NTA 4.1 and later requires a 64-bit operating system.

Legal notices

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