Gigabit Ethernet vs. ATM

Link Speed.............................

Standards.. .............. ..............

Shared Access Protocol.........

Switched Access Protocol.....

Frame Format........................

Transmission Control............

Redundancy............................

VLAN support........................

Network diameter (max).......

UTP link distance (max)........

Priority...................................

Full duplex switching............

Broad multivendor support..

Multivendor Availability.......

10, 100, 1000 Mb/s

IEEE 802.3

CSMA/CD

N/A

IEEE 802.3 Frame

Connectionless

802.1 Spanning Tree

802.1Q (?)

200 meters

100 meters

802.1P (?)

Yes

Yes

1998

Ethernet(Gigabit)

25, 155, 622, 1.2 Gb/s

ATM Forum

N/A

SVC/CMS

ATM Cell

Connection Oriented

ATM Mesh

LANE

2,500 meters

100 meters

ATM QoS

Yes

Yes

Now

ATM

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