mobile data service - fac. electronica
DESCRIPTION
.TRANSCRIPT
Orange Romania
Serviciul de Date Mobile
Mihai LucaMobile Data Service Manager
2010
Orange Romania
2
Confidential
Mobile Data Service – Cuprins
1. Evolutia traficului
2. Arhitectura serviciului 3. Performanta Echipamentelor Vs Performanta Serviciilor
4. Cateva exemple
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1. Evolutia traficului de date mobile
In ultimi 2 ani Internetul Mobil a devenit serviciul cu cea mai mare crestere, atat in Orange cat si in alte retele din lume.
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2. Arhitectura Serviciului de Date Mobile
SGSN - Serving GPRS Support Node BSC – Base Station ControllerGGSN - Gateway GPRS Support Node RNC – Radio Network ControllerMFS- Multi-BSS Fast packet ServerCSG – Content Service GatewayISP – Internet Service Provider
Aprox Aprox
3000 200
Apox Aprox
1000 10
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3. Performanta Echipamentelor Vs Performanta Serviciilor
Alcatel/ RNO
Huawei/ Nastar
Cacti
End to End Test
Sigos
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3 Performanta si monitorizarea Serviciilor
Probleme pe Access network
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3 Performanta Serviciilor
Probleme pe Core network
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4. Cateva exemple
1) Browsing
Clientul: “Ma conectez dar nu mi se incarca nicio pagina….”
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4. Cateva exemple
1) Browsing
Cauza: DNS nu raspunde la interogari.
NOK
OK
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4. Cateva exemple
Clientul: “De ieri paginile de internet se incarca foarte greu …” sau
“ am viteza mica de download…”
2) Viteza de Dowload
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4. Cateva exemple
DL speed ( with UL 384)
avg = 2425kb/s
max = 5207kb/s
DL speed ( with UL 64) =
avg = 1487 kb/s
max = 4530kb/s
Gain – 63% Average speed
- 56% Loading page time
UL 384 speed :
avg = 174kb/s
max = 343kb/s
CE Used = 160
UL 64 speed =
avg = 108kb/s
max = 233kb/s
CE Used = 180
3) Cum putem imbunati experienta clientului
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4. Cateva exemple
5MB
DL (with the UL 384)
DL (with the UL64)
V medie 3960 kbps 3621 kbpsV max 5845 kbps 5867 kbps
5MB
UL (384) UL (64)
V medie 85 kbps 61 kbps
V max 123 kbps 97 kbps
UL CE 110 kbps 70 kbps
Diferenta de viteza pe DL datorita limitarii
vitezei pe UL
3) Cum putem imbunati experienta clientului
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Multumesc!
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4. Cateva Exemple
Exemplu de problema pe Firewall
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1. Evolutia traficului
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Stabilirea unei sesiuni
RRC: Conection request
RRC: Conection setup
RRC: Conection setup complete
RRC: Initial direct transfer
RANAP:UE Initial message
Direct transfer - authentification & ciphering request
Direct transfer - authentification & ciphering response
Security mode command
Security mode complete
Activate PDP context request
Create PDP context request
Create PDP context response
Activate PDP context accepted
Stabilirea unei sesiuni
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