687983_a1d9b_aliev_t_i_seti_evm_i_telekommunikacii

123456 1. 789A5 BCADEABF C 2DA32EAA 5 5

83 455 83 4 6 C F EB 4 6 F8B2FEC36, C E56 F B, C F5 5785 C52 EB 4 6 1 , % B E85443D 75 E3, C5 65 45FE 7B8B23

75FBE 83 455 83 4 2344 (8B, 3 2 5, C 2B5) E.2.;

•9 39" F%2 E 34 – F75F5 45FE FBE 78 BB 4383 C34 (78 CB B4 8BF 8F5C) 4B 45 CB C3E FC5 785 C52 EB 45FE, 5E58 65 45 5 B4 E 5 BFECB445 B8B 5E45*B4 B 78 85FE3 785 C52 EB 45FE F FEB6 78 85FE 8BF 8F5C: B6 B %E5 5E45*B4 B B2 4 B, EB6 C *B 63F*E3 8 B65FE;

•% F9 2 E 34 – C5 65 45FE 326 4 FE8 85C34 D F B C DC B4 D 83 8B*B4 D C5 4 3 C FBE 785 B6, 3 E3 B 7 34 85C34 D 83 C E D 652B84 3 FBE;

•! " E 34 – F5 834B4 B 3 BFEC3 A 4 54 85C34 D FBE 78 6B4B4 B$ F5FE3C3 54A 9 83 C 8B E3EB C 523 FE85D 5 58 25C34 D 25 3C B4 D 45C FE85 FEC.

$DA9831563CC73 383 EB8 FE 567 EB84 FBEB 65 45

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B 5FE4595 5 B E3;

• 6 426!&'5, 578B2B D B FC5 FEC3 5E2B 4 FE85 FEC 3FEB FBE 75 C5 D B 75 E 5 BB 2BE3 45B 78B2FE3C B4 B 5 %AAB E C45FE FBE.

6%$5 5&&'5 (2#24 5#% %4% 4 ,"! 5#&'( 5 52
+ E"9 4AB2	'E 9 4AB2
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E5 65FE4 B	'85 B
	1.51
# AD ABC7 383 EB8 FE 36 5E45FDEFD:

•383 EB8 FE 785 C52 EB 45FE;

•383 EB8 FE 57B83E C45FE;

•383 EB8 FE 432B 45FE;

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•785 B 383 EB8 FE (%4B89575E8B B4 D, 63FF593 38 E4 B

E.7.).

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578B2B D 3D 5 BFEC5 83 5E, C 75 4DB65 FBE C B2 4 C8B6B4. '54DE B 785 C52 EB 45FE 5 C3E C3BE * 85 456B4 3E 8 75 3 3EB B %AAB E C45FE 567 EB845 FBE, 578B2B D 3 BFEC5

71

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A 4 54 85C34 D 3 FBE C B 56, E3 5E2B 4 BB 752F FEB6 % B6B4E5C – EB 4 BF 785983664 F8B2FEC.

'85 C52 EB 45FE FBE 3C F E, C 7B8C 5 B8B2, 5E 785 C52 EB 45FE 5E2B 4 BB % B6B4E5C, 43 C3B65 1 D2D15B 83 5E 7152D43E15693 FE85 FEC, 4378 6B8, F 585FE 7B8B23 2344 75 343 36 FCD, 6B8DB63D 5$656 2344, 7B8B23C3B6 3 B2 4 C8B6B4, FE852B FEC B !1" , E5 4BB, 785 BFF583, 6B8DB65B F 56 56342, C 75 4DB6 C B2 4 C8B6B4, E.7.

-D 5 B4 785 C52 EB 45FE 567 EB845 FBE C B 56

F75 BEFD F B2 3D F5C5 745FE 75 3 3EB B:

• "# %3 4% 56!& ! (FBE 7B8B23 2344), 6B8DB63D F 56 F55 B4 (73 BE5C, 3285C, E) 7B8B23C3B6 75 FBE 3 B2 4

C8B6B4;

• "# %3 4% 56!& ! (F8B2FEC 5 83 5E 2344), 78B2FE3C D 3D F5 5 F 66384 785 C52 EB 45FE CFB F8B2FEC 1(

(!1" F FEB6), C 52D C F5FE3C FBE.

"2D9 6D4953ABCD15B '($ (4 ,, &%420% &&2. , 7& !) 65 BE E 32343 F B2 6 75 3 3EB D6:

• 19 ABC 2343ABC 2D9 6D4953ABCD15B, 43 C3B63D

"# " 4& 2 " & ! 5 % "5#542$% 42&&'( 6B8DB63D 5 BFEC56 73 BE5C (3285C), 7B8B23C3B6 C FBE 3 B2 4 C8B6B4;

• 23 ABC 59831 2D9 6D4953ABCD15B FBE 7B8B23 2344, 5E583D 65 BE E 32343 3 F8B24BB 43 B4 B 43 4B 5E5856 4EB8C3 B C8B6B4 3 6945CB445B 43 B4 B C 54 8BE4 656B4E

C8B6B4.

"2D9 6D4953ABCD15B ' ( ('$% 6% 56!&2. , 7& !) C B 56 F 32 C3BEFD 785 C52 EB 45FEB 1 , C 75 4D 5 83 5E 2344 C FBE.

)3 5 BB C3 4 6 75 3 3EB B6 785 C52 EB 45FE 1 , 3

F5C5 745FE EB 4 BF 785983664 F8B2FEC, DC DBEFD % 5,&2. "# %3 4% 56!& ! λ0 , 6B8DB63D F 56 323, C 75 4DB6

F FEB65 3 B2 4 C8B6B4:

λ0 = lim m(T ) ,

T →∞ T

92B m(T) - F 5 323, C 75 4B44 3 C8B6D T.

+ BC 245, E5 F FEB643D 785 C52 EB 45FE 3C F E 5E 8B 63 A 4 54 85C34 D, 8B3 B6595 783C D 6 7859836636 57B83 5445 F FEB6, 3FF3 8B*3B6 323, E.B. C F EB 45 4398.

1.6.2.2. & A 7 5A26 272 B 5A 2CDB6 2

9383 EB8 FE 57B83E C45FE 57 F C3 E 32B8, C5 4 3 B 78 7B8B23 B 5 83 5E B 2344 C FBE.

-D 5 B4 57B83E C45FE FBE C B 56 F75 EFD F B2 B 75 3 3EB:

72

123456 1. 789A5 BCADEABF C 2DA32EAA 5 5

•C8B6D 25FE3C 73 BE5C (F55 B4);

•C8B6D 5E 3 (5ECBE3).

#5,. 4 2 4% (#5,. 3245#84%) 73 BE5C 383 EB8 BE %AAB E C45FE 58934 3 7B8B23 2344 C C F EB 45 FBE 78B2FE3C DBE F5 5 4EB8C3 C8B6B4, 6B8DB6 5E 656B4E3 75FE 7 B4 D 73 BE3 F55 B4 D C FBE 25 656B4E3 75 B4 D 73 BE3 328BF3E56.

1 5 B6 F 3B, C8B6D 32B8 – CB 43 F 3 43D, E5 5 F 5C B45 F 3 4 6 383 EB856 785 BFF5C 75FE 7 B4 D 7B8B23 2344 C FBE. 1 567 EB84 FBED 5 45 C8B6D 25FE3C 323$EFD F8B24 6 43 B4 B6 (, 43 5E585B 65 BE 43 393E FD 59834 B4 B (< (* C 3C F 65FE 5E E 73 7B8B23C3B6 2344.

'8 7B8B23 B 6 E 6B2 4 2344 856B F8B24B95 43 B4 D C8B6B4 25FE3C 73 BE5C C3 45 383 EB8 FE 5 DC DBEFD 9F 9 / 332F #9 2F/, 78B2FE3C D 3D F5 5 F8B24B C3283E BF 5B

5E 54B4 B C8B6B4 32B8 83 4 73 BE5C.

#5,. 46%42 ( 5 2) – 4EB8C3 C8B6B4 5E 656B4E3 75FE 7 B4 D 3785F3 (F55 B4 D, E834 3) C FBE 25 656B4E3 3CB8*B4 D B95 5 F C34 D, FCD 344595 F C 75 4B4 B6 4B 5E585 78 3245 5 F C3 B 78598366, F 5 83 B4 B6 3 B 2344E.7. 18B6D 5ECBE3 78B2FE3C DBE F5 5 623 23 76 C9 2D1 6 1359 383 EB8 BE %AAB E C45FE 3 EB B 566 4 3 544, E3 C F EB 4 F8B2FEC 567 EB845 FBE.

18B6D 5E 3, 3 C8B6D 32B8, – CB 43 F 3 43D 65 BE 323C3E FD F8B24 6 43 B4 B6 U C C 2B CB85DE45FE P(tu < U*) 4B78BC *B4 D 4B 5E58595 32344595 43 B4 D U*.

1 FBED 8B3 4595 C8B6B4 C6BFE5 EB86 43 "C8B6D 5ECBE3" 3FE5 F75 E EB86 4 "C8B6D 8B3".

1.6.2.3. & A 7 5A26 272 D 5'DB6 2

D2458& ! - F75F5 45FE 567 EB845 FBE F5 834DE FC5 43 5 BB F BFECB44 B FC5 FEC3 43 3234456 85C4B C 75 4DE C5 5 B44 B 43 4BB A 4 C EB B4 B A F 85C344595 7856B E 3 C8B6B4 78 578B2B B44 F 5C D % F7 3E3.

'8 83FF65E8B4 C5785F5C 432B 45FE F B2 BE 83 3E 5E 3

F 5.

7 423 – 3FE 43D 75 43D E83E3 83 5E5F75F5 45FE FBE, 78 C52D 3D 4BC 75 4B4 4B783C 456 C 75 4B4 C5 5 B44 43 4BB A 4. -D C5FFE345C B4 D 83 5E5F75F5 45FE F FEB6 78 5E 3 B E8B BEFD 785CB2B4 B 8B654E3.

2 – 83E 5C8B6B443D E83E3 83 5E5F75F5 45FE FBE, 383 EB8 B63D C5 4 45CB4 B6 5* 78 7B8B23 B 5 83 5E B 2344. -D C5FFE345C B4 D 83 5E5F75F5 45FE FBE 78 F 5B E8B BEFD 785CB2B4 B 75CE584 2B FEC 75 7B8B23 B (5 83 5E B) 2344 3FE 2344 7B8B 398 5E2B 4 5C CFB FBE. 5 4B

73

123456 1. 789A5 BCADEABF C 2DA32EAA 5 5

78 C52DE C 52 FBE FE85D, 5243 5 659 E F BFECB445 F4 E %AAB E C45FE A 4 54 85C34 D, E5 785DC DBEFD C 2*B4 383 EB8 FE A 4 54 85C34 D FBE (CB C3BEFD C8B6D 25FE3C F55 B4 F4 3BEFD 785 C52 EB 45FE FBE).

1 3 BFECB 383 EB8 FE 432B 45FE 5 45 F75 EFD

F B2 B 75 3 3EB:

• 5# . & ! 53 423& 2 #2 ' FBE P(t) – CB85DE45FE E595,

E5 C EB B4 B C8B6B4 t 4B 785 5 2BE 5E 3 3;

• %& 5& % & ! 423 λD – F8B24BB F 5 5E 3 5C 3 B2 4

C8B6B4;

• #5,. &2#2 4% &2 423 – 7856B E5 C8B6B4 6B 2 2C 6D F6B 4 6 5E 3 36 – CB 43 F 3 43D, 3 BB F8B24BB 43 B4 B To

43 C3BEFD 1234C3E C 2 D5 DE C D5 To = 1/λo;

• #5,. 2& 65&%. – 4EB8C3 C8B6B4 5E 656B4E3 43FE 7 B4 D 5E 3 3 25 656B4E3 C5FFE345C B4 D 83 5E5F75F5 45FE F FEB6 – CB 43 F 3 43D 5 45 323BEFD F8B24 6 43 B4 B6 TC,

43 C3B6 6 F8B24 6 C8B6B4B6 C5FFE345C B4 D;

• 4-//%0%5& 1 & % K9 – 25 D C8B6B4, C EB B4 B 5E58595 FBE 83 5E5F75F5 43: K9 = T5/(T5+TC).

1B 43 K9 65 BE E83 E5C3E FD 3 CB85DE45FE E595, E5 C 5 656B4E C8B6B4 FBE 83 5E5F75F5 43. .43 59 45, 43 B4 B (1– K9) 578B2B DBE CB85DE45FE E595, E5 FBE 43 52 EFD C F5FE5D4 C5FFE345C B4 D (4B83 5E5F75F5 43).

1.6.2.4. B2 B6 D 5 ( A 7 5A26 272

1 3 BFECB FE5 65FE4 (% 5456 BF) 383 EB8 FE 567 EB845 FBE 659 E F75 5C3E FD F B2 B 75 3 3EB:

•75 43D FE5 65FE C 32B4 D (Total cost of ownership, TCO) – 3E83E, 83FF E C3B6 B 43 CFB %E373 4B44595 3 FBE C 3 B FE5 65FE EB 4 BF, 4A5863 544 785983664 F8B2FEC (78D6 B 3E83E) 3E83E 43 % F7 3E3 FBE (5FCB44 B 3E83E);

•FE5 65FE (B43) 7B8B23 2344 5 83 5E 2344 C FBE, 578B2B DB63D 5 B656 FE5 65FE F75 B6 8BF 8F5C FBE F55ECBEFECB445 78 7B8B23 B 5 83 5E B 2344.

1.6.2.5. )B7 ED 5 ( A 7 5A26 272 !

1 3 BFECB 5 3 4 383 EB8 FE 567 EB84 FBEB 659 E F75 5C3E FD 6 6919 D159 D5 3A3E 911A34D6 C9 F36 B 83 455 83 4 B 75 3 3EB %AAB E C45FE.

05 3 4 B 383 EB8 FE 57 F C3 E %AAB E C45FE A 4 5485C34 D:

•5C 343 5C FCD;

•5E2B 4 FB96B4E5C FBE;

• 5C 5 83 5E 2344: 1 BB 752F FEB6.

74

123456 1. 789A5 BCADEABF C 2DA32EAA 5 5

05 3 4 B 383 EB8 FE 659 E E 83 E 43 2CB 98 77:

•C8B6B44 B;

•B 83 6B84 B.

# C8B6B44 6 383 EB8 FE 36 5E45FDEFD:

•C8B6D 25FE3C (32B8) 73 BE5C 78 7B8B23 B 6B 2 F5FB24 6 36 FBE;

•C8B6D 5 234 D 7B8B23 2344 C 3 FBE 5FC5 5 2B4 D

8BF 8F5C 1 (FB8CB83);

•C8B6D 78B C34 D 2344 C 83 4 3, FE85 FEC3 752F FEB63.

# B 83 6B84 6 383 EB8 FE 36 5E45FDEFD:

•F 5 73 BE5C, 43 52D FD C AB845 736DE 5C (638*8 E 3E585C, 566 E3E585C);

• 5%AA B4E 398 5 5C, 343 5C FCD FE85 FEC 1										E.2.
-//%0%5& 321# 34% 785FE5 321# 342				ρ	FE85 FEC3 – %E5
25 D C8B6B4, C EB B4 B 5E58595 FE85 FEC5 83 5E3BE:					ρ = lim			t	, 92B t –
					T	→∞ T
C8B6D, C EB B4 B 5E58595 FE85 FEC5 83 5E3 5; T –				C8B6D 43 2B4 D.
3398 3	ρ	383 EB8 BE	FEB7B4 F75 5C34 D	FE85 FEC3						3FE5
43 C3BEFD		D. 9 93C5D 91 DAB D6 C9 152DE156.				'5F 5
0 ≤ ρ ≤ 1, E5		398 3 65 BE E83 E5C3E FD 3 CB85DE45FE				E595,				E5 C
5	656B4E C8B6B4		FE85 FEC5 83 5E3BE.	1B 43				η = 1 − ρ

43 C3BEFD 4-//%0%5& , "# . FE85 FEC3 383 EB8 BE 25 C8B6B4, C EB B4 B 5E58595 FE85 FEC5 4B 83 5E3BE (785FE3 C3BE).

1.7.7A7567 8C4A4 4E6

1 F5C8B6B4456 6 8B F BFEC BE 5 *5B 5 BFEC5 83 4 FBEBC EB 45 59, 3 23D 5E58 8B3 BEFD 645 BFEC56 785E5 5 5C.

"45 BFEC5 785E5 5 5C 83 4 85C4B 5245 FBEBC5 EB 45 59 43 C3BEFD 32 E FE3E E E.

1 43FE5D BB C8B6D F BFEC BE 5 *5B 5 BFEC5 FBEBC EB 45 59 F F55ECBEFEC 6 FEB 36 785E5 5 5C, C E56 F B: TCP/IP, XNS, IPX, AppleTalk, DECnet, SNA 28. 83FF65E8 6 83E 5 4B 5E58 B 4 757 E3B6FD FE345C E F55ECBEFEC B 83 83 5E3445 OSI-652B.

1.7.1. TCP/IP

EB 785E5 5 5C TCP/IP (Transmission Control Protocol/Internet Protocol) 83 83 5E34 75 3 3 " 4 FEB8FEC3 5 5854 :. F B 5 BF7B B4 D FE8595 CB B4 D F 3 567 EB85C F 83 4 6 57B83 544 6 F FEB636 C FBE 3 F BE FE34238E 3.

52B8 E 4 85C4D.

5# 5&! 1 – 5 5 2 %& 5#/52 – 8B3 BE A 4 A BF 595 343 4595 85C4D C OSI-652B:

75

123456 1. 789A5 BCADEABF C 2DA32EAA 5 5

•783C DBE 5 6B456 2344 6 6B 2 FE85 FEC56 FBE;

•638*8 E 8 BE 2344 B 6B 2 FE85 FEC36 5245 FBE. 5# 5&! 2 – ,58 5 5 2 – F55ECBEFEC BE FBEBC56 85C4 C OSI-

652B:

•783C DBE 5 6B456 2344 6 6B 2 FE85 FEC36, 43 52D 6 FD C 83 4 FBED (5 BF7B C3BE 2B E3983664 FB8C F C EB86 43 IEEE652B);

•5ECB 3BE 3 A 4 FBEBC5 328BF3.

5# 5&! 3 – #2& " # &'2 – F55ECBEFEC BE E834F758E456 85C4 C OSI-652B: 5 BF7B C3BE FCD "end-to-end" 6B 2 FE5 4 56

78 B64 56 2344.

5# 5&! 4 – "#%4624& 2 – F55ECBEFEC BE C F* 6 85C4D6 (5-7) C OSI-652B 5 BF7B C3BE A 4, 4B5 52 6 B 75 5C3EB F 6 (78 324 6) 7859836636, 4378 6B8, 23 B445B 752 B4 B 63* 4B, 7B8B23 3 A3 5C E.2.

1.7.2. XNS

EB 785E5 5 5C XNS (Xerox Network Services Internet Transport Protocol) 83 83 5E34 56734 B Xerox 2 D 7B8B23 2344 75 FBED6

Ethernet.

52B8 E 5 85C4B.

5# 5&! 1 – #542 "5#542$% – 8B3 BE A 4 A BF 595 343 4595 85C4D C OSI-652B:

•783C DBE 5 6B456 2344 6 6B 2 FE85 FEC56 FBE;

•638*8 E 8 BE 2344 B 6B 2 FE85 FEC36 5245 FBE. 5# 5&! 2 – ,58 5 5 2 – F55ECBEFEC BE FBEBC56 85C4 C OSI-

652B:

•783C DBE 5 6B456 2344 6 6B 2 FE85 FEC36, 43 52D 6 FD C 83 4 FBED (5 BF7B C3BE 2B E3983664 FB8C F C EB86 43 IEEE652B);

•57 F C3BE F75F5 785 5 2B4 D 2344 B8B FBE.

5# 5&! 3 – #2& " # &'2 – F55ECBEFEC BE E834F758E456 85C4

COSI-652B:

•5 BF7B C3BE FCD "end-to-end" 6B 2 FE5 4 56 78 B64 56

2344.

5# 5&! 4 – 4 & # 6!&'2 – F55ECBEFEC BE FBFF 54456 78B2FE3C EB 456 85C4 C OSI-652B:

•783C DBE 78B2FE3C B4 B6 2344;

•783C DBE 54E85 B6 432 8BF 8F36 FE85 FEC.

5# 5&! 5 – "#%4624& 2 – F55ECBEFEC BE C F* 6 85C4D6 C OSI652B:

• 5 BF7B C3BE A 4 5 83 5E 2344 2 D 78 324 323.

76

123456 1. 789A5 BCADEABF C 2DA32EAA 5 5

1.7.3. IPX

'85E5 5 IPX (Internet Packet Exchange) 57 F34 56734 B Novell

3 "FB8C F", 5E58 75 C5 DBE 78 5 B4 D6 75F 3E 75 3E F55 B4 D B8B FBE. '522B8 C3BE 5 *5B 645955 83 B E575 59 01 A BF F8B2FEC 7B8B23 2344.

52B8 E, 3 785E5 5 XNS, 5 85C4B C5 645956 75CE58DBE

XNS.

+E B 3 3BEFD E5 5 C E56, E5 IPX 6BBE 4BF 5 5 25 3C5 4 A 4, 4378 6B8, C5 65 45FE 7B8B23 F B 4 F55 B4.

'85E5 5 IPX 5 BF7B C3BE:

•C F5 785 C52 EB 45FE A3 5C595 FB8CB83 C 01 ;

•785FE5E 326 4 FE8 85C34 D C 63 F8B24 FBED;

•65 BE 83 5E3E C 5 * FBED FBED F 4B5245 43 4 6 638*8 E36, C E56 F B F 4BF 5 6 F5B2 4B4 D6 FB8CB83 2 D 83F78B2B B4 D 4398.

'85E5 5 IPX 4B 93834E 8 BE 25FE3C F55 B4 D, E.B. IPX-73 BE 65 BE E 75EB8D4. -D 5 BF7B B4 D 93834E 85C3445 25FE3C 83 83 5E34 785E5 5 SPX (Sequenced Packet Exchange - 75F B25C3EB 4 5 6B4 73 BE36), 5 BF7B C3 752ECB8 2B4 B F7B*4595 785 5 2B4 D F55 B4 D 75 FBE. 1 5 * 4FECB F 3BC IPX SPX 8B3 EFD 3 B2 4 785E5 5 (5245 785983665) IPX/SPX.

1.7.4. AppleTalk

'85E5 5 AppleTalk (56734 Apple Computer) 78B243 43 B4 2 D FCD 6B 2 567 EB836 Macintosh 43 5 BB 5 OSI-652B - F52B8 E 6 85C4B, 78 B6 C F* (78B2FE3C EB 4) 85CB4 5 B2 4DBE C FB B A 4 78 324595 78B2FE3C EB 4595 85C4B OSI-652B.

1.7.5. DECnet

EB 785E5 5 5C DECnet (Digital Equipment Corporation net)

F52B8 E 7 85C4B (8 F.1.52).

	285CB4	)3 6B45C34 B
	7	'8 3245 (75 5C3EB F)
	6	BEBC B 78 5 B4 D
	5	#54E85 FBFF
	4	#566 4 3 "54B FCD"
	3	"38*8 E 3 544
	2	#343 4
	1	/ BF 343

1.52

77

123456 1. 789A5 BCADEABF C 2DA32EAA 5 5

)BF65E8D 43 83 4 C EB86 45 59, 85C4 DECnet 5 B4 75 5 43 85C4 OSI-652B.

DECnet 8B3 BE 54 B7 FBEBC5 38 EB E 8 DNA (Digital Network Architecture), 83 83 5E344 A 865 DEC, F59 3F45 5E585 83 458524 B C F EB 4 B F FEB6 (!1" 83 4 3FF5C), A 4 54 8 B 752 783C B4 B6 83 4 57B83 544 F FEB6, 659 E E 5 B2 4B4 C EB88 E58 3 45-83F78B2B B44 B 4A5863 5445-C F EB 4 B FBE.

1.7.6. SNA

'85E5 5 SNA (System Network Architecture) 56734 IBM

78B243 43 B4 2 D 23 B445 FCD F 5 * 6 567 EB836 F52B8 E 7 85C4B (8 F.1.53).

285CB4	)3 6B45C34 B
7	B8C F E834 3
6	'8B2FE3C EB 4 FB8C F
5	#54E85 75E5 3 2344
4	#54E85 7B8B23
3	#54E85 638*8 E3
2	#54E85 343 3
1	/ BF 54E85

1.53

SNA 5F45C343 43 54 B7 9 3C45 (5FE)-63* 4 5 BF7B C3BE 25FE 7 23 B44 EB86 43 5C 6B 4A8B 636 IBM.

+F45C45 5E EB 45 B8E5 SNA DC DBEFD 43 B C5 65 45FE 25FE 73 3 2595 EB86 43 3 5 78 3245 78598366B 9 3C45 !1". FEB643D FBEBC3D 38 EB E 83 8B3 5C343 43 3 B C 8E 3 4595 EB B 566 4 3 544595 6BE523 25FE 73 (Virtual Telecommunication Access Method - VTAM) C 9 3C45 !1". VTAM

783C DBE CFB6 4 D6 FCD EB86 43 36, 78 B6 3 2 EB86 43 6BBE 25FE 7 5 CFB6 78 324 6 7859836636.

1.7.7. " 2 65&%5 4 ,, &%420% &&'( , 45652 % "# 4 6

) B C E3.1.2 78B2FE3C B4 83FF65E8B44 B FEB 785E5 5 5C 75 3 345 F55ECBEFEC B 8B 56B425C3445 "B 2 4385245 58934 3 B 75 FE34238E 3 OSI-652B.

78

123456 1. 789A5 BCADEABF C 2DA32EAA 5 5

( A9 1.2

	OSI	TCP/IP	XNS(IPX)	AppleTalk	DECnet	SNA
7	'8 3245	'8 3245	'8 3245	'8B2FE3C B4 D	'8 3245	B8C F
					(75 5C3-	E834 3-
					EB F)
6	'8B2FE3C B-		#54E85 4		BEBC B	'8B2FE3-
	4 D				78 5 B4 D	C EB 4
						FB8C F
5	B34F5C			BFF 544	#54E85	#54E85
	(FBFF 544)				FBFF	75E5 3
						2344
4	(834F758E-	(834F758E-	(834F758E4	(834F758E4	#566 4 3-	#54E85
	4	4			"54B-	7B8B23
					FCD"
3	BEBC5	"B FBEBC5	"B FBEBC5	BEBC5	"38*8 E-	#54E85
					3 544	638*8 E3
2	#343 4	BEBC5	#343 4	#343 4	#343 4	#54E85
	(7B8B23	4EB8AB F	4EB8AB F			343 3
	2344)
1	/ BF			/ BF	/ BF	/ BF-
					343
						54E85

79

123456 2. 78549AB2 A565CDEEF C2

123456 2. 71897ABC A8D8EF EC

2.1. 12345367 8439AB9 A7C3BDB 259EB

2.1.1. 123245667894AB9C

123245667894AB9C (1234. tele – 56789, 6783AB C 87D. communicatio – BEF3 C3) – 3236747 67 7 EB89 C3 27 DB C.

DE2F A 23245667894AB99 – B5BA B D9 D3 C43 AC,

2B127 C B217 C 7 CB 236 D5 68 323674C 67 7 EB89 C3 27 DB C.

123245667894AB9588AC 2 – B 3 D5B 236 D5 D383AB CA7 CC, 5 7 3 6 BEB C BE27 FC 3D9 B 23638 B DB B8B1CC (AB C1 27 CC). 383AB CA7 CB C 3D C 58 D (2C.2.1):

•D383 B 3 3DC 68 323674C D383 B 67 (1B8B 7);

•276CB 3DC 68 323674C 7 6CB67;

•D3835C CB 3 3DC 68 323674C 5C63B67;

•C 2B5 3 (AB 9 D32 3) 3DC C8C 3DC 323674C 67 (!"#) 68 323674C C 2B5 (AB 9 D32) 67.

A565 ! 2" 5 5

383 B 7 '76CB 3D9 3835C CB 7 (C 2B57 (!"#)

2.1

#7 3 5 C 2B5 D383AB CA7 CB 3D B2 C2 D 5 5C63 9DD 5, C 3 FC B 236383 D2 AD 2 C 27 7D2C573 A7A 36C B3 38B3.

#7 3 (BBEF3 C) B1 D E D9:

•5 858 B E;

•4 9C85A E.

$3 232 5 3 67 3 B1 D E D9 236 D7583 5 5C63 3 232 5 B A CC 523 3 C, 7 2C 32, 2349, 5 A, 5C63B. #C A23D 3 67 3 B DB D C 7AB5 (C 5B8B5).

"3236747 67 5 D383AB CA7 CB B 3DC B F3 D58 3D B BF9 C C C43 AB1B 236 D7583 C – 9 26DB.

% AB 9 D32 3D 68 323674C 67 C B89 D 836 FC3 26 (2C.2.2):

•&83AD2C43 AC (&83AD2C43 AC DBA);

•B DC43 AC (53D);

•&83AD2B 71 CD (&83AD2B 71 CD B3 B83 C 8 43 C – 276CB5B8).

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