6
6. o cc giao din E1. (Theo chun ITU-T G703)
-Tt c cc card trung k E1 lp t ti DSLAM Hub trung tm v cc DSLAM
ti Bo Lc, T Lng, Tr Lnh v Trng Khnh khng p ng c tiu chun ITU-T
G.703 v mt n xung.
-Mt s hnh kt qu o kim ti tnh Cao Bng s dng My o Sunset E10 o
lung E1
Hnh 3- Kt qu o lung E1 ti TX Cao bng
Hnh 4- Kt qu o lung E1 ti T Lng
Hnh 5- Kt qu o lung E1 ti Tr Lnh
Hnh 6- Kt qu o lung E1 ti Trng Khnh
Hnh 7- Kt qu o lung E1 ti Bo lc7. o kim kh nng cung cp dch v
VPN.
7.1 Dch v VPN khng qua BRAS.
Cu hnh dch v VPN:PC1-> modem1 -> DSLAM ->
modem2->PC2
- PC1: IP: 10.22.36.11/24
- Modem1:
Local: 10.22.36.1/24
WAN: 11.11.11.2
Type: IPoA
- Modem2:
Local: 10.0.0.2/24
WAN: 11.11.11.1/24
Type: IPoA (or 1483 Routed IP LLC)
- PC2: 10.0.0.23/24
Tc bng thng thit lp:
1024 kbps
Tc bng thng download thc t: 754,14 kbps.
Hnh 8. Dch v VPN khng qua BRAS
7.2 Dch v VPN thng qua BRASCu hnh dch v VPN:PC1-> modem1
-> DSLAM1->BRAS -> DSLAM2->modem2->PC2
- PC1:
IP: 10.22.36.11/24- Modem1:
Local: 10.22.36.1/24
WAN: 192.168.1.2/24
Type: IPoA
-BRAS:
IP1: 192.168.1.1/24
IP2: 192.168.2.1/24
- Modem2:
Local: 192.168.12.1/24
WAN: 192.168.2.2/24
Type: IPoA (or 1483 Routed IP LLC)
- PC2: 192.168.12.10/24
Tc bng thng thit lp:
1024 kbps
Tc bng thng download thc t: 506,27 kbps.
Hnh 9. Dch v VPN thng qua BRAS5
