Телекоммуникационные системы
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6 - 7 |
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audio, video |
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FTP |
SMTP |
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DNS |
DHCP |
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… |
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4 - 5 |
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RTP, PTCP, |
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RTP |
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TCP |
UDP |
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MGCP |
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3 |
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IP |
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, IP |
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1 - 2 |
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Ethernet, V.35+PPP . |
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TCP/IP |
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NGN |
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8.9 NGN TCP/IP
, NGN, TCP/IP -
. -
.
)
(TCP) (UDP)
RTP (Realtime Transport Protocol), -
. -
(IP - ) ( -
). RTP – ( -
). , RTP
UDP RTCP.
RTCP –
( , ,
).
NGN RTP .
, MGCP (Media Gateway Control Protocol) – -
.
IP -
.323, SIP, MGCP, MEGACO .
.323 IP – 7.5.2.
, :
212
– IP ( -
IP – .
– , -
, .
.323,
, SIP (Session Initiation Protocol). -
HTTP, UDP.
SIP 8.10.
, , ) -
. ( ) -,
. – ,
.
SIP |
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SIP |
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8.10 SIP –
-
, –
.
NGN , -
, -
. -
, -
. NGN
:
1.NGN (IP – ). -
« » , -
213
.
.
2.NGN, -
. , , -
IP .
3.NGN .
IP – NGN
, -
.
214
.
1./ , .
, . .- .: – , 2003.- 232 .
2.., ., . -
. .1 – .: .
» , 1998. – 536 .
3.. : . . – .:
, 1986.-544 .
4./ . .
. .- .: , 1996.- 559 .
5.. . . – .: -
, 2002.-751 .
6./
. . . . – .: , 1996344 .
7. . SDH. – .: -
, 2000.-148 .
8.. .- .: , 2001. -
283 .
9.., . . – .: ,
1988.
10.. . - .: ,2003 –
253 .
11.. . - .:
,1980.
12.., .
.- .: , 2001.-187 .
13.. . - ,
, 2005.
14.., .
. - .: , 2001. -221 .
15.. .- , -
,1999.-114 .
16.. . .: , 2000.-268 .
17.., ., . IP- .
-.: ,2001.-334 .
18.. . - .: , 2001. -282 .
19.. . - ,
, 2003.-157 .
215
20.., . . – -
, « »,1999.-668 .
21.., . .
. 2-6, 2003.
22.., .
. – ,« », 2003.-400 .
23.. . – .:»
»,2001.-290 .