Siemens IEEE802.11 Manual do Utilizador descarregar pdf (Página 9)

WLAN-IEEE802.11 Tutorial (Maximilian Riegel), 021018-wlan-tutorial.ppt Page 9 © Siemens, 2002

link

phy

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link

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link

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link

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link

phy

link

phy

link

phy

tcp

http

www

tcp

http

www

IP based network architecture

ipip ipip ipip ipip

N-DATA.request

N-DATA.indication

N-DATA N-DATA N-DATA

ip = connectionless,

non-reliable,

end-to-end,

packet-oriented

data delivery service

193.175.26.92 131.34.3.35

Version Length Type of Service Total Length

Identification

Fragment offset

Time-to-live Protocol Header checksum

Source IP Address (32bit)

Destination IP Address (32 bit)

Options (if any)

1234

Data

00

RTD

D: Delay

T: Throughput

R: Reliability

“1”= precedent

TOS (pre-diffserv)

1 2 3 4 5 6 7 8 9 10 11 12 13 14 ... 83 84

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