RTH SOFIA STATUS OF IMPLEMENTATION OF RTH Sofia

RTH SOFIA STATUS OF IMPLEMENTATION OF RTH Sofia Submitted by Mariana Grueva, Head of Telecommunication Division, NIMH Sofia, Bulgaria ISS/ICM-MTN & ET-OI 2006 Geneva, 16 -19 May 2006

RTH SOFIA • RTH - Sofia’s zone of responsibility as appointed to the regional meteorological telecommunication plan are: Albania, Bulgaria, Cyprus, The Former Yugoslav Republic of Macedonia, Romania, Serbia and Montenegro and Syrian Arab Republic. • RTH - Sofia successfully migrated to the Regional Meteorological Data Communication Network (RMDCN) in Region VI (in March 2000). • RTH – Sofia use TCP/IP as the data transport protocol, with FTP, to all connections.

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Circuits RTH SOFIA RMDCN; RTH PRAGUE RTH TOULOUSE WMC MOSCOW IN OUT (Kbps) RTH Vienna 8 RTH Offenbach: 32 16 IPSec VPN over Internet NMC Budapest 16 8 ECMWF: 64 16 Interne The VCP Coordinated Project: The Project of RTH Sofia was implemented in NMC RA Implementation of Message Switching System the GTS circuit Tirana/Sofia over the Internett VPNVI RMDCN Tirana on March 2006 NMC BELGRADE Message Switching System Facilities: MSS TRANSMET (Meteo France) running on OS Linux (Slackware) and The presented project cover the necessity for operative international telecommunication Communications Intel based PCs (Pentium IV - 2 MHz). MESSIR – Comm (COROBOR) link of NMC-Tirana into the GTS under the recommendations of WMO. NMC TIRANA Installed in 2002 by RTH Sofia. - LAN access Windows server professional 2003 to POP Data base system - developed by RTH Sofia. Length of bulletins that can be handled VPN serverpropose: The • Project Circuits RTH SOFIA 300 K ■ PC -based file distribution system at NMC-Tirana; Maximum of bulletins : upgrade the system software emulation based onlength BSD End of 2006 is PC/Free the target date to ■ IPSec VPNAFD over Internet. alphanumeric – 15 KB √ RMDCN Installed by RTH Sofia. and to reach the 500 K. – no limit IN OUT (Kbps) Goalof the Project is the establishmentbinary The point of “Virtual Private Network” (VPN) over the public WMC Moscow 16 8 MTN Satellite distribution systems: Other systems: Internet. ECMWF 64 8 Corporative Intranet. DWDSAT environment –NMC VPN technologies SKOPJE RETIM 2000 RTH-Sofia ↔ NMC-Tirana √ NMC Chisinau - a PTT analogue link (19. 2 - 33 Kbps) NTSADIS METEOSAT MSG KONGSBERG SPACETC’S MSG Ground receiving station How RTH-Sofia implements all of Internet services and Internet technologies Message Switching System as VPN, security methods and technologies, etc. NMC BUCHAREST Data exchange over global Internet RTH-Sofia implements WWW-server and Web technologies. MESSIR-COMM (Corobor) ü IPsec technology Length of bulletins that can be handled AFTN - V. 35 AFTN 500 K RETIM 2000 - receiver, MESSIR VISION application. Other systems: NMC ATHENS MSG system by COROBOR - 2006 NMC LARNACA RETIM 2000 ü NMC DAMASCUS

RTH-Sofia n e t w o r k VPN+IPSec+ Firewall PC DMZ Free (4) BSD leased line POP Internet POP c o n f i g u r a t i o n leased line NMC-Tirana DMZ VPN+IPSec+ Firewal + NAT PC Free (1) BSD Internet Access Device PC (2) LAN Linux FTP server + AFD Intranet PC (3) Windows operator work place IPSec Tunnel + IKE

RTH SOFIA Back-up systems • Transfer of bulletins to RTH-Sofia by using of HTTPS protocol • Exchange of data by using of e-mail

RTH SOFIA Advantages: √ By connecting NMC Tirana to GTS is decreased the number of NMCs in the RTH Sofia’s zone of responsibility not included to the GTS; √ RTH Sofia and all associated NMCs in the zone of responsibility use Internet; √ Using of e-mail for the administrative exchange of message; √ Promptly and in time change of the set of data exchanged in the zone of responsibility by a NMC request and between MTN RTHs, as well.

RTH SOFIA Problems About connection to the GTS √ There is a NMC not connected to GTS yet: NMC Damascus VPN/IPSec over Internet connection between RTH Sofia and NMC Damascus – recommendation of RAVI WG PIW, fifth session; √ NMC Larnaca uses low speed connection to GTS via NMC Athens The attempt of RTH Sofia could be apply in NMC Larnaca for the VPN/IPSec over Internet connection The attempt of RTH Sofia could be apply in NMC Larnaca for the VPN/ between RTH Sofia and NMC Larnaca by the implementation of a relevant project; About equipments RTH Sofia needs of the hardware upgrade. ABOUT ADMINISTRATIVE COMMUNICATIONS The exchange of administrative messages to/from NMC Skopje is very difficult to its focal point. OTHERS A need of training – new telecommunication/IT technologies.

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RTH SOFIA Interne RA VI RMDCN t NMC BELGRADE NMC TIRANA RTH PRAGUE RTH SOFIA RTH TOULOUSE MTN NMC SKOPJE WMC MOSCOW NMC BUCHAREST AFTN NMC ATHENS NMC LARNACA NMC DAMASCUS

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