The NetSys NOTAM office suite A modern solution to aging NOTAM systems Single server configurations are supported of course, but for sites requiring mission critical service levels a High Availability Cluster is the preferred choice. Such a system advertises the servers in the cluster to the outside world by a single IP address and transparently handles assignment of the address to the elected live Ethernet interface by means of a HA heartbeat process. This makes configura- tion and interaction of any 3rd parties with the cluster much simpler and less error prone. All transactions happening on the live server are replicated to the standby server to ensure both are in step at all times should a live server breakdown warrant a hot/standby swap. High Availability Cluster The NetSys NOTAM suite of software applications fulfills all the functions and needs of a NOTAM Office (NOF). It complies with the International Civil Administration Organization (ICAO) Standards And Recommended Practices (SARPs) for a NOF. The schematic depicts a typical dual redundant NOTAM back office configuration connected administrative workstations. Introduction The server software can be hosted on Intel based server hardware such as supplied by Dell and HP. The client can be hosted on Intel based workstations. The server backend software requires the latest RedHat Enterprise Server 32 or 64-bit. The workstation software requires Fedora Core Linux. The software utilises the Postgres RDBMS for storage of NOTAMs and configuration informa- tion.. Platform o Ingestion of AFTN messages, segmented or complete, containing NOTAM, SNOWTAM or ASHTAM. o Full support for AFTN protocol as per ICAO Annex 10 o Validation, decoding and storing of NOTAM, SNOWTAM and ASHTAM. o Automatic printing of messages as they are transmitted or received o The auto-requesting of missing NOTAM based on foreign checklist o Automatic aging and archiving of NOTAMs o Automatic assembly and splitting of AFTN part messages o Automatic assembly and splitting of NOTAM part messages o Selective auto-correction of American NOTAM o Automatic production of Warning charts based on area defined in E-field o Detailed decoding of D-field o Partial decoding of invalid NOTAM o Auto-increment NOTAM series number only after AFTN switch confirmation o Extract multiple NOTAM from single AFTN message o Support different distribution lists o Distribution of alert messages o Supports various protocols such as X.25, and TCP/IP o Ready for migration to X.400 AMHS o Storage of data in a transaction based RDBMS with SQL access o Seemless co-existance with NetSys weather data processing s/w o Field proven NetSys message handling system at the core o High Availability cluster with live and standby nodes and automatic failover in case of network failure o Retains error and event logs for 30 days Server Main Features NOTAM Editor for: o Issuing a new NOTAM o Correcting NOTAM rejected by validation o Issuing corrected NOTAM o Issuing cancel NOTAM NOTAM Re-conciliator for: o Displaying missing NOTAM numbers, with the ability to request them manually o Display of checklist o Generation of checklist and possibility to edit them Status and Monitor Client for: o Displaying logs and alarms from servers o Indicating server process status o Forcing a switch-over between live and standby o Monitoring message flow o Display server alert messages Client Main Features