What are maximum connection rates for network lines used in Internet backbones, LANs, and wide area networks?

Below are the connection rates for network lines used in Internet connections, backbones, LANs, and wide area networks, followed by a list of the abbreviations used:

Connection rate	Standard
40Gbps	OC-768
13.21Gbps	OC-255 (also called OC-256)
10Gbps	OC-192
4.976Gbps	OC-96
2.488Gbps	OC-48, STS-48
1.866Gbps	OC-36
1.244Gbps	OC-24
933.12Mbps	OC-18
622.08Mbps	OC-12, STS-12
466.56Mbps	OC-9
155.52Mbps	OC-3, STS-3, high-speed ADSL downstream
100Mbps	CDDI, FDDI, Fast Ethernet, category 5 cable
51.84Mbps	OC-1, STS-1
44.736Mbps	T-3, DS-3 North America (Indiana University Bloomington's Internet access speed)
34.368Mbps	E-3 Europe
20Mbps	Category 4 cable
16Mbps	Token ring LANs
10Mbps	Thin Ethernet, category 3 cable, cable modem
8.448Mbps	E-2 Europe
6.312Mbps	T-2, DS-2 North America
6.144Mbps	Standard ADSL downstream
3.152Mbps	DS-1c
2.048Mbps	E-1, DS-1 Europe
1.544Mbps	T-1, DS-1 North America
128Kbps	ISDN
64Kbps	DS-0, pulse code modulation
56Kbps	ITU V.90 modems, 56flex, US Robotics x2 modems
33.6Kbps	56flex, x2 modems
28.8Kbps	V.34, Rockwell V.Fast Class modems
20Kbps	Level 1 cable, minimum cable data speed
14.4Kbps	V.32bis modem, V.17 fax
9600bps	Modem speed circa early 1990s
2400bps	Modem speed circa 1980s

Bandwidth measurements

bit	Smallest unit of digital information (i.e., one or zero)
byte	Eight bits
bps	Bits per second
Kbps	Kilobits per second (1000 bits per second)
Mbps	Million bits per second (1,000,000 bits per second)
Gbps	Gigabits per second (1,000,000,000 [one billion] bits per second)
Tbps	Terabits per second (1,000,000,000,000 [one trillion] bits per second)

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Last modified on May 09, 2007.

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