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
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.
SolarWinds NTA's CBQoS, NBAR2, and WLC reports now include charts.
Reports, Views, and Detail views that are filtered by specific nodes or interfaces are generated faster.
For features and improvements in Orion Platform 2016.1, see the Orion Platform 2016.1 Release Notes.
New customer installation
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.
- When you are ready, download the upgrade package from the SolarWinds Customer Portal.
NTA 4.2 fixes the following issues.
|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.|
See also Orion Platform Release Notes.
|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
This version of NetFlow Traffic Analyzer no longer supports the following platforms and features.
|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.|
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