While using the internet/VPN many of us get confused by the bandwidth figures provided by our Internet Service Provider (ISP). Following information clears many things that appear before our eyes.

bps: bits per second
Kbps: Kilo bits per second
(103)
Mbps: Mega bits per seconds
(106)
Gbps: Giga bits per second
(109)

Broadband: In India broadband is defined as bandwidth that is 512 Kbps and above. This was recently changed to 512 Kbps, earlier it was 256 Kbps. This definition differs from country to country.

Bandwidth figures are tabulated below:

Latest technological developments in mobile telephony from 2G, 3G to 4G, have made high speed internet accessible to common man. One can get 3.1 Mbps, 7 Mbps, up to 21 Mbps bandwidth on their mobile phone using 3G. 4G LTE is promising even more.

Hope this basic information is useful.... Keep it handy. Save it somewhere !!!

Bandwidth…Internet/VPN speed

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Sr. No.

Description

Speed

1

Regular Telephone

Not more than 56 Kbps

2

Mobile Phone

9.6 Kbps to 14.4 Kbps

3

ISDN-BRI (Basic Rate Interface)

64 Kbps to 128 Kbps

4

ISDN-PRI (Primary Rate Interface)

23(T1) or 30 (E1) assignable 64 Kbps channels. Upto 1.544 Mbps(T1) or 2.048(E1)

5

Satellite

400 Kbps

6

T1

1.544 Mbps

7

E1

2.048 Mbps

8

T2

6.312 Mbps

9

DSL (Digital Subscriber Line)

512 Kbps to 8 Mbps

10

E2

8.448 Mbps

11

Cable Modem

512 Kbps to 53 Mbps

12

Ethernet

10 Mbps

13

Fast Ethernet

100 Mbps

14

E3

34.368 Mbps

15

T3 / DS3

44.736 Mbps

16

OC1 (Optical Carrier)

51.84 Mbps

17

E4

139.264 Mbps

18

OC3/STM1

155.52 Mbps

19

E5

566.148 Mbps

20

OC12/STM4

622.08 Mbps

21

Gigabit Ethernet

1 Gbps

22

OC24/STM8

1.244 Gbps

23

OC-48/STM16

2.488 Gbps

24

OC192/STM64

10 Gbps

25

OC-256

13.271 Gbps

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