Siemens IEEE802.11 - Manual (Page 9)

WLAN-IEEE802.11 Tutorial (Maximilian Riegel), 021018-wlan-tutorial.ppt Page 9 © Siemens, 2002
link
phy
link
phy
link
phy
link
phy
link
phy
link
phy
link
phy
link
phy
tcp
http
www
tcp
http
www
IP based network architecture
ip ip ip ip ip ip ip ip
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 )/$*6 Fragment offset
Time-to-live Protocol Header checksum
Source IP Address (32bit)
Destination IP Address (32 bit)
Options (if any)
1 2 3 4
Data
0 0 R T D
D: Delay
T: Throughput
R: Reliability
“1”= precedent
TOS
(pre-diffserv)