Good day, We are now testing your product and we want to know, if is possible to track or be informed if some interface is not used for some time - e.q. no MAC address visible for long time or interface is down and not administrative down for long time. For example i try to configure alert profile with matchfield value.id cam.end_time with filter not equals 9999-12-31 23:59:59.999999 and added to filter group G01:All alerts with Add operation but no alert appeared on status tab. Is possible to somehow monitor it? Thank for your help Best regards [Hyundai Autoever_Ma_07012017] Daniel Gryžbon [New motto Hyundai blue] Network Specialist Hyundai AutoEver Europe GmbH, organizační složka Hyundai 700/1, 739 51 Nižní Lhoty Tel: +420 596 14 1755 E-Mail: daniel.gryzbon@hyundai-motor.cz<mailto:daniel.gryzbon@hyundai-motor.cz> Website: www.hyundai-autoever.eu<http://www.hyundai-autoever.eu/>