接口速率标准 28.8 Modem >28k
56k Modem >56k
Fractional T1/ISDN 128 K
Frame. Relay 1.5 M
DSL / ADSL 1.5 M
T-1/DS-1 America 1.5 M
SDSL 2.0 M
E-1/DS-1 Europe 2.0 M
Fractional T3 3.0 M
Wireless 4.0 M
T-2/DS-2 6.3 M
E-2 Europe 8.4 M
Cable
10.0 M
Thin Ethernet 10.0 M
E-3 Europe 34.3 M
T-3/DS-3 America
44.7 M
OC-1/STS-1 51.8 M
CDDI,FDDI 100.0 M
OC-3/STS-3 155.5 M
OC-12/STS-12 622.0 M
OC-24 1.2 G
OC-48/STS-48 2.4 G
OC-192 10 G
OC-255 13.2 G
OC-768 40 G
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