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bài giảng lập trình mạng chapter 1 introduction

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Chapter 1
Introduction

1






 !"#$%&'()&(

*+,(' (

/01)%1"1

*23455,6,67

89*,81
:4
:4
2


 !"#

$%&'()*)+,*++%-.
$)/$
8;

0 12'3456"$789:6/)/"$


)/;5'%5))#


3


Học lập trình mạng để làm gì?

<=19!6"6-.>>=9?@#

<="6=6'31%)$++

A1 '319++$'+/$/
=#


4


B!%1C8

DE+++F))

GH+F))

DI'+9/)+

G)99+'))''+'/

JK++L/LK++*+)/


DM)+9

G<)

JI'+H)

NH++

OH+)+P+

QR'+/</++

ST-/9</

U*+)+B+'+9/


5


<%

<$ 

VH*/+'

B<KW*K

M)/B<K


M)/TFK

<>
<1"1=1=*8
<1"1=1=*8
6

 !

"#$%&'!
()&&*+%&',-+./01,-2$&30%4*&5&)&6&37
(,8

9-2$&30%4*&5!

:6&37#$!;<.%&'/03(&*+=0&>?
=0-/(&@& &A&<&$&30%4&B$&3C#$ &0D&
EF&3#$,GF#$H;$%!;
I&&&?J3&
K&L#$HI3&
7
Network: Các khái niệm cơ bản
Network: Các khái niệm cơ bản
M

ID#& $,N5!

OPQ?RPQ?"PQS


ID#&,GF#$T;U!

I&&&?

J3&

ID#&&30%4&

0%<#CT30&VW&U?

0%<#$8T&VW&U

ID#&6&37=0 5!

I3&3?

33
(*
(*
8
X


X8
Y
6

B!%9!)/;5))@1+/2)!#

X@19Z'$[(/9@-4)/;


\%9]]4='^.GC"6C

_`2)/=)/"'3$.=

a)>)b

Kc>/

d'1'18"1e$/=49@&=6>/,f@& "@
/"=6
>,8?@,9=,14
>,8?@,9=,14
9
YZ
>,AB,819=,14C
>,AB,819=,14C
10
YY
)#12C(
,9=%f,9=),)g/###
#B"> 

d"@12C<)ha*<)i)+j,\,Hk,E/+###

XC6-4C5'%

< CK<,H++

<">/,l)m,/+,H)+

#K C

<///'

<%C$

<$l'+,1

<
6,DE,F67
6,DE,F67
11
Y
n]fo1pd"^: 

.[)%""$$q
GH,
GH,
12
E
EIJ
E
EJ
EJ
E
EIJ
E
EJ
EJ
*+,E

K?8G"L
MNO MNP
*4
E"D
EJ
Y
V"[L,-+&6&6,<0$@)&.N\],NL&3C8
GH,E
GH,E
#
Một số NSX:
r
SNA của IBM (6 layer)
r
DECnet của Digital Equipment Corporation (8)
r
Appletalk của Apple,
r
Netware của Novell Inc
Y

d@]C"^5)%@,:)9!)
C
-
K1312C
-
M)/5)#

VH*


E+l+++/+'l/V+H9+9*+/+/s4)"/
%@"%@p
r
n]f"^: 
r
n:!tC"^,'$8/$""$
"/9.tC
$%&/*41
$%&/*41
14
Y
$%&/*41
$%&/*41
15

VH*S')+9
Y
16
Y

9@q
LX'3C4[)#
LX'3C [)#
L4>)b/$ #
LaC.'+W9++u#
L<tC)/u#
Giao thức TCP/IP
Giao thức TCP/IP
17
YM


<=N 

'"5'%hF))_Wa+k/i+99j
M)/""> Dc

ha+k/W*++j
X>)b,/,36=

6hB)9/j
X../5'%1C3

hi')/j
<,>
Giao thức TCP/IP
Giao thức TCP/IP
18
YX
()&("D$%&;6,*+,
()&("D$%&;6,*+,
19
Z
QAA"DRA45
QAA"DRA45
20
Y

X>)b'$^="^
Q,S
Q,S

21


B<KhB)999/<//'K///'j'$)/C.^
)/;5'%-)'5)G)C3$
m#
*+,(
*+,(
22


;I,^_&6&*6&.&3-/>&,`0$ab0(6&&76&.
$ab0(&@&

\&<?6&.;I8!

&6&*6&.

&30%4b0

6&&76&.
231
(@M*2:
(@M*2:

11TM4981U9 9*1,*
11TM4981U9 9*1,*
CTL = Which control bits in the TCP header are set to 1
D
G

J

MF8GN*(BV W,C
MF8GN*(BV W,C
D
G
N
J

×