NetFlow Traffic Analyzer 4.1 Release Notes

Release date: November 24, 2014

These release notes describe the new features, improvements, and fixed issues in NetFlow Traffic Analyzer 4.1. 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 4.1

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NTA 4.1 offers new features and improvements compared to previous releases of NTA.

  • Improved sampling rate recognition and the option to manually override detected sampling rate
  • Improved ToS classification
  • Support for MS SQL 2014
  • Orion Web Console Improvements:
    • Support for Drag&drop of resources
    • NOC view support
  • Integration of UDT resources on NTA views
  • End of support for classic charts
  • End of support for 32-bit operating systems

Fixed issues

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NTA 4.1 fixes the following issues.

Issue Case Numbers
Unknown traffic in Types of Service resource. 575067
Incorrect NetFlow reporting on Juniper switches. 334385
IPFIX not processed correctly in some cases. N/A
Endpoint hostnames must comply with the RFC 952 standard; endpoint names containing other than the following characters A-Z, a-z, 0-9, .- will not display correctly. N/A
High CPU utilization during CBQoS polling. N/A
NTA Service or NTA Flow Storage Service may take long to start or stop. N/A
NTA Service or NTA Flow Storage Service occupy high amount of memory for long retention periods and/or high amount of stored flows. N/A
Location of the backup folder needs to be different from the location of NTA Flow Storage Database. N/A
Update of historical data for applications using IP groups does not work in some cases. N/A
Performance Improvements for updates of Applications with IP Groups. N/A
NTA Service (local NTA Flow Storage Database) or NTA Flow Storage Service will not start and keep bouncing. The Update.zip file is corrupted, the log file contains the "Unexpected EOF" error message. N/A
Resources on an Additional website are not working. N/A

Known issues

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Issue Case Number
Gaps in Flow Data when NTA and NTA Flow Storage Database Installed on the Same Server
Workaround: This issue is caused by insufficient resources available on the server. To resolve the issue, move your NTA Flow Storage Database to a separate server. For more information, see Moving NTA Flow Storage Database.
N/A
Cannot Display NTA Reports for Longer Time Periods due to Timeout N/A
Upgrading a remote NTA Flow Storage Database to NTA 4.1 first might cause upgrade issues if your main poller is not running NPM 11.0 or newer.
Warning: Make sure you upgrade NPM to version 11.0 or newer before you start upgrading NTA to 4.1.
N/A
Database maintenance fails to remove some NTA Flow Storage Database partitions after the retention period. N/A

Historical Updates for Large Retention Periods Might Be Time-Consuming.

N/A

End of life

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Version EoL Annoucement EoE Effective Date EoL Effective Date
3.9

December 10, 2013:

End-of-Life (EoL) announcement – Customers on SolarWinds NetFlow Traffic Analyzer version 3.9 or older should begin transitioning to SolarWinds NetFlow Traffic Analyzer version 4.0.

March 10, 2014:

End-of-Engineering (EoE) – Service releases, bug fixes, workaround, and service packs for SolarWinds NetFlow Traffic Analyzer version 3.9 or older will no longer actively be supported by SolarWinds.

March 10, 2015:

End-of-Life– SolarWinds will no longer provide technical support for SolarWinds NetFlow Traffic Analyzer version 3.9 or older.

See the End of Life Policy for information about SolarWinds product lifecycle phases. For supported versions and EoL announcements for all SolarWinds products, see Currently supported software versions.


End of support

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

Type Details
32-bit operating system NTA 4.1 and later requires a 64-bit operating system.

Legal notices

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