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Ethernet frame rates, Minimum xdsl bit stuffing, one additional bit, Thernet – ADC 320F User Manual

Page 52: Rame, Ates

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Ethernet Frame Rates

44

Megabit Modem 310F and 320F User Manual

E

THERNET

F

RAME

R

ATES

The following sections show Ethernet maximum frame transmission rates, dependent on the
additional bit and bit stuffing set for the xDSL transmission.

Minimum xDSL Bit Stuffing, One Additional Bit

The values in the table below show the frames per second for the maximum xDSL rate.

Ethernet

Data rate

10 Mbps

Preamble

8 bytes

CRC

4 bytes

Interframe gap

9.60E-06 s

xDSL

Flags

1 byte

FCS

2 bytes

Protocol

2 bytes

Overhead/Frame

5 bytes

Additional bits

1 bit

Bit stuffing

min (min/max)

Frame Size

(da:sa:lt:data:crc

)

[bytes]

xDSL Data Rate

7040

kbps

6400

kbps

3200

kbps

1536

kbps

896 kbps

768 kbps

384 kbps

64 kbps

64

13,512.5

12,284.1

6,142.0

2,948.2

1,719.8

1,474.1

737.0

122.8

128

6,815.1

6,195.5

3,097.8

1,486.9

867.4

743.5

371.7

62.0

512

1,715.0

1,559.1

779.5

374.2

218.3

187.1

93.5

15.6

1024

858.4

780.4

390.2

187.3

109.3

93.6

46.8

7.8

1518

579.3

526.6

263.3

126.4

73.7

63.2

31.6

5.3

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