WORLD METEOROLOGICAL ORGANIZATION

_________________________COMMISSION FOR BASIC SYSTEMSOPAG ON INFORMATION SYSTEM &

SERVICESExpert 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).

Cot

onou

Lagos

Bamako NYM

Kano NDJ

BanguiDouala

Libreville

Brazzaville

Tana

Mahga

Toamasina

Station qualifiée B (11 m)

Station qualifiée F2 (7,30m)

Station qualifiée F1 (3,70m)

Tamba

AbidjanAccra

Malabo

Toliara

Ouaga AmTiman

Dire

Bouar

Atar

Nouadhibou

NCK

Ouesso

Pointe Noire

Casablanca

Las Palmas

Conakry

Lom

e

J OHANESBURG

AGENCE POUR LA SECURITEDE LA NAVIGATION AERIENNEEN AFRIQUE ET A MADAGASCAR

Station Hors ASECNA

Moroni

Garoua

Dirkou

AgadezGao

Zinder

Faya

Tessalit

Bir-Mogrheim

Sal

RECIFE

St Denis

Alger

Nairobi

Luanda

Réseau de Télécommunication ASECNA par SatelliteSynoptique Général

Kinshasa

Dar es Salaam

Khartoum

Le Caire

Tripoli

Tunis

Maurice

Sante Maria

INTELSAT 10.02359°E

20/20 EH/EH Pol A

CAFSATINTELSAT 801

328,5°E 20/20 EH-EH37/37 GB-GB

INTELSAT 604SADC 60°E

93/93 SW

Beira

Dzaoudzi

Antsirana

Dakar

Nema

Taoudenni

Tombouctou

Bria

Makoukou

Korhogo

Taolagnaro

Toulouse

NETWORK TOPOLOGY

COVERAGE

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 ACCESSINTODUCTION OF SATELLITE MODEM FULL IP AND ROUTER

RadioLAN

NMC

RETIM2000

MiniCOM-MTO

NMC

COM-MTO

PC-VISION

PC-VISION

SATCOM

TCP/IPradioLAN

Earth Station

SADIS

LINKS BETWEEN ASECNA RTH(s)

GTS/SATCOM

Meteosat

Récepteur Récepteur

SGMSADIS, RETIMRTH

Meteosat

RadioLAN

RécepteurRécepteur

DAKAR NIAMEYBRAZZAILLE

Over VSAT services TCP/IP ( Internet, VPN…)

Provider

WEB SERVEURFTPDatabase

HF DATAHF DATA

TCP/IPBase de donnée

DATA Processing

DATA processing

internet

internet

RTH

Earth Station

CMN pays hors ASECNA

CONNECTIVITY WITH RTH AND NMC

SADIS

Data Processing System

COM(existant)

AMSSSATCOMVSAT via providerVSAT internet

Earth station

Earth station

RETIM2000

GTS

Meteosat

Récepteur RécepteurCRT Dakar ou Niamey Brazzaville

Meteosat

RécepteurRécepteur

AMSS

HF DATA

TCP/IP

Data Processing System

DATABASE DATABASE

RTCC.A.T.RSFTA

TCP-IP Radio

GTS

SWITCH

Modem

LS PTT

COM MTO

MASTER SERVER SLAVE SERVER

X25, V24, TXI/TG

GTS

Earth station

SADISMETEOSAT

MSG

AFISNET

TCP-IP

NMCBreezenet

Récepteur

Multiplexeur

Remote control monitoring system

VSAT VPN internet

STATUS OF EACH RTH

Images

Terminal

HF DATA

internet

LAN

STATUS OF GTS CIRCUITS

Cotonou

Kinshasa

Douala

Lagos

N'djamena

CairoTripoli

Ouagadougou

Bamako

Abidjan

Accra

Nouakchott

Canary

Banjul

Bissau

Freetown

Monrovia

Conakry

Sal

Malabo

MadridRome

Western Sahara

Tunis

4.8

0.05AFTN

1.2

2.4

19,2

0.05

NI

19.2

19,2

19,2

19.2

0.05 NI

0.05

0.05

0.05

0.05

19.2

1.2

1.2

2.4

1.2

64

19.2

NI

2.4

NI

9.6AFTN

NI

0.075

0.05

0.05

NI2.4Casablanca0.05

0.05

19.2

2.4

0.075

Libreville

Bangui

via Toulouse

Toulouse

Algiers

Lome

Toulouse

Brazzaville

9.6

64 NiameyDakar

NI

0.05

1.2

19,2

Nairobi

Sao-tomé

RTH, CRT

NMC, CMN

Centre in other region

MTN circuit, circuit RPT

Regional circuit

Interregional circuit

Regional loop

DCP

HF circuit

NI Not implemented

NO Not operational

64

Migration of TC/IP for

Dakar Toulouse, planify for the next week

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