Source: https://support.alcadis.nl/Support_files/Alcatel-Lucent/OmniVista//OmniVista 2500 Data/Software/OmniVista 2500 NMS v3.x/OmniVista 2500 NMS v3.5.7 GA Release/OmniVista 2500 NMS v3.5.7 GA Release Notes.pdf