1. 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, 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

2. 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).

3. NETWORK TOPOLOGY

4. COVERAGE
IS 10-02

6. TELECOMMUNICATION INFRASTRUCTURE
GTS FACILITIES
AMSS and WEB SERVER
TELECOMMUNICATION INFRASTRUCTURE

7. 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, , 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

8. 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

9. 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

10. 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

11. 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

12. 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

13. 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), , INTERNET BACKUP

14. E N D O F T H E P R E S E N T A T I O N
THANK YOU
E N D O F T H E P R E S E N T A T I O N
FOR YOUR ATTENTION