supports models    OMNY 2120-IR PTZ
start upgrade kernel  NVSS_V8.1.11.20160623&onvif_v2.5.2_20160430
version after upgrade NVSS_V8.1.11.20160815_SP1&APP_V3.0.0.20170217
upgrade by  IE or SearchConfigTool
                       1.NVSS_H3516D_V8.1.11.20160817_DZ16372.box
                       2.NVSS_IE_OEM_V5.56.16.817.20160827_DZ16372.box
                       3.NVSS_ONVIF_V8.15.20160826_DZ16372.box
                       4.NVSS_NH6120I_16D_V8.1.11.20160815_SP1_BD20170033.box
description sloved the issue that SNMP log make flash memory full 