STATUS OF TCP/IP PROCEDURE RTH OF DAKAR, NIAMEY AND BRAZZAVILLE WORLD METEOROLOGICAL ORGANIZATION _________________________ COMMISSION FOR BASIC SYSTEMS OPAG ON INFORMATION SYSTEM & SERVICES Expert Team on WIS-GTS Communication Techniques and Structure (TOULOUSE, France, 26-30 MAY 2008) ET-CTS 2008 _____________ ITEM 2(x) ENGLISH only Presented by: Hugues AYINA (ASECNA) STATUS OF TCP/IP PROCEDURE RTH OF DAKAR, NIAMEY AND BRAZZAVILLE

Summary and purpose of document This document includes the report on the status of implementation of TCP/IP systems and circuits at ASECNA (RTH Dakar, Brazzaville, Niamey).

NETWORK TOPOLOGY

COVERAGE IS 10-02

TELECOMMUNICATION INFRASTRUCTURE GTS FACILITIES AMSS and WEB SERVER TELECOMMUNICATION INFRASTRUCTURE

AMSS and WEB SERVER IMPLEMENTATION OF 08 NEW AMSS WITH THE FONCTIONNALITY INDICATED BELOW HOT STANDBY, TCP/IP SOCKET AND FTP PROCEDURE, INTERNET VPN BACKUP CIRCUITS, EMAIL, FAX, ETC… RTH OF DAKAR (DAKAR, ABIDJAN) RTH OF BRAZZAVILLE(BRAZZAVILLE, DOUALA, LIBREVILLE, BANGUI, MALABO RTH OF NIAMEY(NIAMEY) ONE WEB SERVEUR AT DAKAR FOR THE RETRIEVAL OF OPMET DATA’S WITH ONGOING EXTENSION TO OVER METADATA

TELECOMMUNICATION INFRASTRUCTURE IMPROVEMENT OF LAN USING OPTICAL FIBRE IMPROVEMENT OF WAN: TDMA REPLACE FDMA FOR SATELLITE MULTIPLE ACCESS INTODUCTION OF SATELLITE MODEM FULL IP AND ROUTER

LINKS BETWEEN ASECNA RTH(s) Over VSAT services TCP/IP ( Internet, VPN…) WEB SERVEUR FTP Database GTS/SATCOM Earth Station PC-VISION internet SATCOM Provider COM-MTO SADIS Meteosat DAKAR NIAMEY BRAZZAILLE SGM SADIS, RETIM RTH TCP/IP Base de donnée Récepteur Récepteur RTH RETIM2000 Meteosat HF DATA Mini COM-MTO HF DATA TCP/IP radioLAN PC-VISION Récepteur Earth Station Récepteur DATA Processing DATA processing RadioLAN RadioLAN internet NMC NMC

Data Processing System Data Processing System CONNECTIVITY WITH RTH AND NMC GTS Earth station AMSS SATCOM VSAT via provider VSAT internet Data Processing System RETIM2000 COM (existant) Meteosat CRT Dakar ou Niamey Brazzaville Récepteur Récepteur TCP/IP SADIS Meteosat AMSS Data Processing System Earth station Récepteur Récepteur HF DATA CMN pays hors ASECNA

STATUS OF EACH RTH LAN GTS COM MTO AFISNET METEOSAT MSG SADIS TCP-IP internet TCP-IP TCP-IP Radio Earth station Récepteur VSAT VPN internet GTS Images NMC LAN Multiplexeur Breezenet COM MTO SLAVE SERVER MASTER SERVER Terminal DATABASE DATABASE HF DATA X25, V24, TXI/TG Modem Remote control monitoring system RTC SWITCH C.A.T. RSFTA GTS LS PTT

Dakar Toulouse, planify for the next week STATUS OF GTS CIRCUITS Rome Algiers 0.05 0.05 Madrid 2.4 0.05 Toulouse 64 Casablanca 0.05 4.8 2.4 NI Tunis 0.05 Western Sahara Canary 0.05 1.2 Tripoli Cairo 0.05 0.075 0.05 19.2 0.05 Nouakchott NI Toulouse 9.6 19.2 Dakar 64 Niamey 0.075 2.4 Bamako Banjul 2.4 19,2 64 NI Ouagadougou Bissau 9.6 AFTN N'djamena 1.2 19.2 via Toulouse NI Conakry 1.2 NI 0.05 Bangui Sal 19.2 1.2 2.4 Freetown Accra Cotonou Lagos Monrovia 0.05 Abidjan Lome Nairobi Douala 1.2 NI 19,2 Malabo 19.2 19,2 19,2 Libreville RTH, CRT Brazzaville 0.05 AFTN NMC, CMN NI DCP Kinshasa Sao-tomé Centre in other region MTN circuit, circuit RPT Migration of TC/IP for Dakar Toulouse, planify for the next week HF circuit Regional loop NI Not implemented NO Not operational Regional circuit Interregional circuit

MIGRATION TO TCP/IP WITH TOULOUSE METEOFRANCE ONGOING PROJECT IMMEDIATELY MIGRATION TO TCP/IP WITH TOULOUSE METEOFRANCE AND INTERNET BACKUP FROM 02 TO 05 JUIN DAKAR TOULOUSE NIAMEY TOULOUSE BRAZZAVILLE TOULOUSE SHORT TERM --- MARCH 2009 NEW AMSS FOR EACH NMC OF ASECNA TCP/IP (SOCKET, FTP), EMAIL, INTERNET BACKUP

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