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Network Communication Speed Comparison Chart

As the demand for faster speeds has grown rapidly over recent decades, new communications networking equipment and systems are constantly being developed to accommodate these requirements .  A result of these efforts is a series of established networking protocols and terminology that are used to identify various speed thresholds and the related equipment.

The chart below is intended as a quick reference guide to help readers associate the various networking speeds with their respective protocol/service names.

Max Throughput Speed

Protocol / Service

64 kbps

DSO / Integrated Services Digital Network (ISDN)

1.5 Mbps

DS1 / T1

10 Mbps

10Base-T Ethernet / RS-422

45 Mbps

DS3 / T3

100 Mbps

100Base-T Ethernet (Fast Ethernet) / FDDI

155 Mbps

OC-3 / STM-1 Synchronous Optical Network (SONET) / Asynchronous Transfer Mode (ATM)

200 Mbps

ESCON (Enterprise Systems Connectivity)

622 Mbps

OC-12 / STM-4

1 Gbps

Gigabit Ethernet and Fibre Channel

2 Gbps

Fibre Channel

2.5 Gbps

OC-48 / STM-16 / OTU1 (Optical Transport Unit)

4/8 Gbps

Fibre Channel / Infiniband

10 Gbps

10G Ethernet / OC-192 / STM-64 / OTU2 /

Fibre Channel (Serial and Parallel)

16 Gbps

Fibre Channel / Infiniband

40/43 Gbps

OC-768 / OTU3

100/112 Gbps

100GE / OTU4


Video and proprietary protocols

> 1 Tbps

Wavelength Division Multiplex

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