ITU-R S ITU-R S (ITU-R ( ) (SDH) (FSS) .SDH SDH (SBE) SDH SDH. (NNIs) SDH SDH ITU-T G.783 SDH ITU-T G.

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1 ITU-R S.49-2 ( ) ITU-R S.49-2 (ITU-R 20-4 ) (SDH) (FSS)..SDH FSS. ( ) SDH (SBE) SDH.SDH / (NNIs) (FSS) (SDH) ( ITU-T G.708 ITU-T G.707 ( SDH ITU-T (SDH) SDH ITU-T G.783 ITU-T G.805 ITU-T G.803 ( SDH ( SDH ITU-T G.780 ITU-T G.704 ITU-T G.703 ITU-T G.702 ( ه SDH ITU-T G.957 ITU-T G.822 ITU-T G.83 ITU-T G.78 SDH ( ITU-T G.825 ITU-T G.774 ITU-T G.773 ITU-T G.784 ITU-T G.83 ( SDH

2 ITU-R S ITU-T M.3000 (TMN) ( TMN ITU-R S.252 ITU-R S.25 ITU-R S.250 SDH SDH (HRDPs) ( ITU-T G.828 ITU-T G.826 ITU-R S.52 ITU-R S.062 ITU-T G.827 ITU-T G.842 ITU-T G.84 ( ITU-R S.522 ITU-R S ITU-T G.86 ( SDH (SDH) ITU-R F.75 ITU-R F.750 ( (SDH) (PDH) ITU-T G.832 ( SDH PDH (SDH) ITU-R ( ( ( (FSS).(SDH)

3 3 ITU-R S SDH... SDH STM (ATM) (SDH)... (SDH) (FSS) (FSS) FSS-SDH... ( ) (2 ) (3 )

4 ITU-R S (SDH) (SBE)... (FSS)... ( ) SDH (SBE).5... (STM-) Mbit/s 55,52..5 (SDH) (PDH)...(STM-0) Mbit/s 5, (AU) (2 ) 2.5 (SSOH) (S-IOS) (AU) (SBE) (3 ) (SSOH) (S-IOS)... / (SSOH) (TU) (SSOH) (DCC) -

5 5 ITU-R S.49-2 (SDH) (FSS)..SDH FSS. ( ) SDH (Mbit/s 5,84 (Mbit/s 5,84 > (SBE) SDH :SDH SDH ) ) : :2 :3. SDH FSS-SDH.ITU-T G.86 B A A B SDH SDH B A A B SDH SDH B A SDH FSS-SDH 49-0

6 ITU-R S NNI (EI) :A NNRP SEI SRP :B - 3 " ) 3 SEI SRP 2.(ITU-T G.86 "SDH : (SBE) SDH SDH -.(SBE) SDH - : (administrative unit) (alarm indication signal) (automatic protection switching) (administrative unit group) (bit interleaved parity) (data communication channel) (digital cross connect) (equipment interface) (frequency division multiple access) (higher order virtual container) (higher order path adaptation) (higher order path connection) (higher order path overhead monitor) (higher order path termination) (higher order satellite path adaptation) (higher order satellite path termination) (higher order satellite section adaptation) (higher order supervisory unequipped generator) 2. :AIS :S :AU :AUG :BIP :DCC :DXC :EI :FDMA :HOVC :HPA :HPC :HPOM :HPT :HSPA :HSPT :HSSA :HSUG

7 7 ITU-R S.49-2 (higher order supervisory unequipped monitor) (intra-office section) (line termination) (overhead access) (path overhead) (section overhead) (internal satellite interface) (lower order virtual container) (lower order path adaptation) (lower order path connection) (lower order path overhead monitor) (lower order path termination) (lower order satellite section adaptation) (lower order supervisory unequipped generator) (lower order supervisory unequipped monitor) (message communications function) (multi-destination satellite server) (multiplex section adaptation) (multiplex section overhead) (multiplex section protection) (multiplex section termination) (network node interface) (network node reference point) (operation, administration and maintenance) (plesiochronous digital hierarchy) (remote defect indication ) (remote error indication ) (regenerator section overhead) (regenerator section termination) (synchronous baseband equipment ) (synchronous digital hierarchy) (satellite equipment interface) (synchronous equipment timing physical interface) (synchronous equipment timing source) (satellite intra-office section) :HSUM :IOS :ISI :LOVC :LPA :LPC :LPOM :LPT :LSSA :LSUG :LSUM :LT :MCF :MDSS :MSA :MSOH :MSP :MST :NNI :NNRP :OAM :OHA :PDH :POH :RDI :REI :RSOH :RST :SBE :SDH :SEI :SETPI :SETS :S-IOS :SOH

8 ITU-R S (synchronous physical interface) (satellite reference point) (satellite regenerator termination) (satellite section overhead) (synchronous satellite physical interface) (satellite section termination) (satellite synchronous transport module-n) (synchronous transport module-n) (satellite tributary unit group ij) (time division multiple access) (telecommunication management network) n N ij (tributary unit) (tributary unit group) (virtual container) (voice order wire) :SPI :SRP :SRT :SSOH :SSPI :SST :SSTM-n :STM-N :STUG-ij :TDMA :TMN :TU :TUG :VC :VOW OAM -.(VOW ) SDH -.. MS S MST RST -.NNI :HSPA :HSPT :HSSA :ISI :LSP :LSSA :MDSS :SFCOH :S-IOS :SLT :SRP

9 9 ITU-R S TDMA -. STM-n - n. STUG - ij.tug-3/vc-3 G.708 TUG-2 :SSOH :SSPI :SST :SS-TDMA :SSTM-n :STUG-ij SDH SDH 2.2 (STM-) ( Mbit/s 55,52 SDH..2 ) SDH SDH.ITU-T G (kbit/s) SDH SDH STM-0 STM- STM-4 STM-6 STM-64 STM : STM- µ 25.(VC) 2 SDH

10 ITU-R S (Mbit/s 55,52) STM- 9 (RSOH) 3 4 (AU) 5 (MSOH) () STM-n SDH.Mbit/s 2,240 VC-2 Mbit/s,664 VC-.SDH (HOVC) (LOVC) HOVC..VC-2 VC- VC-2 LOVC.VC-3 VC-4 SDH.(MSOH)..G.784 ITU-T G.707 (SOH) STM- ITU-T STM SDH.(2 ) SDH 3. Sub-STM-0 - ITU-T G.708.(SDH)

11 ITU-R S Sub-STM- STM (kbit/s) STM sstm- sstm-2 sstm-4 sstm-8 sstm-6 sstm-2 sstm-22 sstm-24 STM-0 STM- STM-4 STM-6 STM-64 3 Sub-STM- / STM-N VC-4 C-4 kbit/s ( ) TUG-3 TU-3 VC-3 STM-0 VC-3 C-3 kbit/s ( ) sstm-2 n** sstm-2 n** TUG-2 n** TUG-2 TU-2 VC-2 C-2 TU-2 VC-2 C-2 kbit/s 6 32 ( ) kbit/s ( ) sstm- k* sstm- k* TUG- k* TU- VC- C- kbit/s 544 ( ) C- n: 2n sstm-k.( ATM).C-x = k 4 2 = n * ** G.702 : 49-03

12 ITU-R S ITU-T G.805 (ATM).(SDH) (SDH) (ATM).(SDH) (ATM) / ATM / ATM ATM. SDH ATM.(SDH) (STM-N) N : ATM I.36 - ATM I.36 - ( VC-4) - SDH G SDH G (ATM) (SDH). ATM (ATM) (PDH) G.702 PDH ATM.(SDH) ATM.SDH.SDH.(VP) : ATM I.36 - ATM - ATM - PDH G PDH G SDH G SDH G SDH G SDH G.707 -

13 3 ITU-R S.49-2 (ATM) VCT VCVPA VPT (VP) (SDH) (ATM) VC VC VC VSPN 4 VCVPA VPT VCSN VCVPA VPT (VP) VPHOP HOPT MS MST RSA RST HOP HOP VPHOP HOPT MS MST RSA RST HOPT MS MST RSA RST VPHOP HOP MS MST RSA RST HOSPN MS MST RSA RST HOP VPHOP HOPT MS MST RSA RST VPHOP HOPT MS MST RSA RST HOP HOP :HOPSN :MSA :MST :RSA :RST :VP :VCVPA :VPT :VPSN : VPHOPA ( VC-4) : HOP :HOPT : :CP : :VC :VCA :VCT :VCSN VCT VCVPA VPT VPHOP HOPT MS MST RSA RST

14 ITU-R S (ATM) 5 VP VPT VPIMA IMCT IMCIA IMIT VP Nx Nx VPT VPIMA IMCT IMCIA IMIT IMIPA G.702 Nx IMIPA PT Nx G.702 Nx G.702 Nx G.702 PT IOSA Nx LOP LOPA IOST Nx LOP HOP LOPT HOPA N HOP HOPT MSA MST RSA RST

15 5 ITU-R S Client_CP X/Client X/Client X_ X X_ CI 2 Y X Xv (SDH) (FSS) 3.3 (SDH).. SDH SDH SDH..2.3

16 ITU-R S ITU-T G. 783 SDH.(SDH).. SDH 7b 7a.. FSS-SDH

17 7 ITU-R S.49-2 (SBE) 7a (SDH) ( ) S35 SSPI T2 S35 SSPI T2 S34 SST U32 S34 SST U32 S33 HSSA-n T2 S30 LSSA-m T2 S8 LPC-m S7 LSUM-m LSUG-m S9 S2 LPOM-m S7 HPA -m/n U5 S6 HPT-n U3 S5 HPC-n S6 HSUM-n HSUG-n S8 S20 HPOM-n S4 MSA S4 MSP S3 P MST Y U2 S2 N RST U S SPI T D04

18 (SBE) ITU-R S b (SDH) ( ) (SEMF) V (MCF) Q X (S35-S) S N (7a ) SBE U32 U5 U4 U3 U2 U S3 S2 S5 SETS SETPI 49-07b (FSS) 3.3 SDH ().( ).( SS-TDMA ) 2.3.3

19 9 ITU-R S.49-2 (ms),2 2,2 3,6 5,2 6,6 8,2 9,6 3 ( ) 8-0,8 ± 8-0 4,0 ± 8-0 6,7 ± 8-0 9,4 ± 7-0,2 ± 7-0,5 ± 7-0,6 ± () 0, 0,5,0,5 2,0 2,5 3,0 SDH AU. ( ) SDH SDH FSS-SDH 4 ( )..4.ITU-T G.86 SDH (Mbit/s 55,52) STM- DCC BIP-8 RSOH.(SBE). K/K2 MSOH. ( ) MSP MST STM- ( G.703 G.957) ( ) A.SDH (SRT) ( ) SBE ITU-T G.86 " Mbit/s 5,84 "SDH.G.732 Mbit/s 40 PDH.(LT) STM- SDH. / G.805 FSS SDH RS..HOVC LOVC.4

20 ITU-R S SDH STM- FSS FSS-SDH FSS FSS FSS (2 ) (SDH).Mbit/s 5,84.ITU-T G.86 SDH SDH (SBE).NNI ) () / SBE SDH / (TUG-2 VC-2 (Mbit/s 5,84) STM-0.. S-IOS " " SDH SBE. / S-IOS S-IOS Mbit/s 5,84 SBE.( B (SEI) )

21 2 ITU-R S.49-2 SLT (A ) (NNI) SBE (MST) (RST) VC-2.(MS) (S).VC-3 VC-2.POH BIP-2/8.9 G.805..STM-0 (MDSS). ( ) (MDSS) 9 2 FSS-SDH (VC-3) VC-2 VC-2 HOVC HOVC FSS FSS FSS MDSS ().. : MDSS (SDH) (STM-0) SDH - -. SDH -

22 ITU-R S FSS-SDH MDSS. G.805 VC-4.VC-4 (MS) (RS).HOVC ( VC ) VC-3 MDSS.(Mbit/s 5,84) STM-0 IOS.ITU-T G.86 (3 ) (SDH) 2 ( ) A.(SBE) SDH (SLT) SBE (NNI) (S) (MST) (RST) B SBE.(MS).S-IOS TUG-2 VC-2 S-IOS (VC ) STM-0 SBE."" 2..2 S-IOS S-IOS SDH. /. SBE ( B ) (SEI) SEI 3.5.ITU-T. S-IOS.VC-2. POH BIP-2.0 G.805.MDSS : MDSS (SDH) ) SDH - (STUG -. SDH - FSS-SDH MDSS. G

23 23 ITU-R S VC-3 VC-4 (MS) (RS).HOVC LOVC MDSS.3.5 IOS (MDSS) 0 3 FSS-SDH NE VC-2 VC-2 STUG- STUG-2 FSS FSS FSS 49-0 (FSS) (SDH) (SBE) ( ) SDH (SBE) SDH SBE.(HSSA) LOVC HOVC. SBE. (VC-2) Z6 (VC-4 VC-3) Z5 (STM-) Mbit/s 55,52 SBE ) ITU-T G.783 (MS).(7a.( (MST) ) (MS) (AU) (RST).(3..5 ) (HSSA) AU

24 (STM-) Mbit/s 55,52 STM- ITU-R S (4..5 ) - SBE EI SPI U U2 U3 RST MST HSSA SST SSPI SEI S S2 S3 S3 S32 S (PDH) (SDH) Mbit/s (G.832 (PDH).ITU-T G.832 G PDH SDH SBE ).(7a ) - (SBE) EI U U2 U3 SPI RST MST MSA p q HSSA SST SSPI STM- S S2 S3 S4 S3 S32 S33 SEI G.703 PDH p U3 U5 U5 U3 HPT HPA LPC HPA HPT q S6 S7 S8 S7 S ) (HSSA) (). PDH (4..5 (STM-0) Mbit/s 5,84. Mbit/s 5,84 ITU-T G.708 ((LT) ) STM-N/STM-0 SBE HSSA 2 G.832 SBE.4..5.(SFCOH) Mbit/s HSSA.(AU) SDH STM ,84.(4..5 ) (AU) 5..4 ) (SDH

25 25 AU ITU-R S.49-2 /.STM- 3 ( ) SBE (STM-) (HSSA) 3 SBE ) HSSA RST AUG PG PB MB PI SST SETS :MB :PB :PG :PI.ITU-T G.783 (MB) 49-3 (PB). AU. ITU-T G.832 SBE G.703 (SEI).() SBE AU. 4 - (OAM) 5..5 SBE SBE SDH STM- STM- STM- SDH (LOF) (LOS) SBE MS AIS. SDH (MS AIS) 49-4

26 ITU-R S (MS RDI). AIS SDH.AU-AIS.4 MS AIS LOP LOF LOS ITU-T G.783 SBE SBE.SBE MS AIS 4 - SBE () SBE (2) SEMF AU-AIS MS AIS LOS/LOF LOS/LOF AU-LOP SBE "" SBE :SEMF () (2) AIS LOS/LOF AIS LOS/LOF. (2 ) (SDH) SBE (HSSA) (MST) (RST) (MS).(LPC HPC) (VC-4 VC-3) Z5 LOVC HOVC.SBE. (VC-2) Z6 VC-3 (VC-3) HOVC SBE VC-2 SBE.. VC-2 SBE. SBE 5. SBE. 2.5

27 27 ITU-R S.49-2 SBE 5 STM-N STM-N SBE STM-0 STM-0 STM-0 STM-0 to P, Q, R from P from Q from R 49-5.SBE 6 ) Mbit/s 5,84 Mbit/s 5,84 SONET (VC-3) HOVC.(Bellcore TR-TSY : (HSPA) (VC-2 VC-2) LOVC. : (HSSA) ITU-T G.707 AU-3 (AU) - Mbit/s 5,84 - (S-IOS) S-IOS AU VC-3 -. / AU-3 - (SSOH).2.5 SSOH / : S-IOS " " (DCC) - VOW -.μs (HSPT)

28 2 ITU-R S SBE STM-0 STM-0 STM-0 S35 SSPI T2 S35 SSPI T2 S35 SSPI T2 S34 SST U32 S34 SST U32 S34 SST U32 S33 HSSA-n T2 S33 HSSA-n T2 S33 HSSA-n T2 S32 HSPT U3 S32 HSPT U3 S32 HSPT U3 S30 HSPA U3 S30 HSPA U3 S30 HSPA U3 t r r2 r3 t t S8 LPC-m S8 LPC-m S8 LPC-m S7 S6 HPA- mn / HPT-n U3 U5 S6 HPC-n S4 MSA S4 MSP S3 S2 N MST RST Y U2 U S SPI T STM-N 49-6

29 29.ITU-T G.707 STM-0. ITU-R S.49-2 STM-0 (SOH) S-IOS (S-IOS) (REI RDI ) STM-0 7 (SOH) A A2 S R B E F REI D S2 S3 S4 I H H2 H3 S S5 S6 S7 D4 D7 D0 D5 D8 D D6 D9 D2 A, A2: S-S8: B: E: F: D4-D2: Z, Z2: BIP-8 DCC Z Z2 S (S ).. BIP-N. DCC DCC. (AU) (OAM) (HSSA)

30 2 ITU-R S OAM SDH STM- SBE SBE STM- SDH STM-0 SDH STM- SBE SBE STM- SDH 49-8 (LOF) (LOS) SBE MS AIS (SDH) SBE AU/TU TU-AIS AU-AIS.S-IOS RDI (LOP) SBE TU-AIS AU-AIS (SDH) (HO) RDI SBE. AU/TU (LO) SBE (MS) RDI. MS RDI SBE.2 5 LOP LOF LOS ITU-T G.783.MS AIS HO-RDI MS RDI ITU-T G.707.TU-AIS AU-AIS LO-RDI LOP LOF LOS RDI AIS RDI AIS. RDI AIS LOS/LOF/LOP (3 ) (SBE) (RST) SDH SBE (HSSA) (MST).SBE (MS).(LPC HPC) (VC-2) Z6 (VC-4 VC-3) Z5 LOVC HOVC. 3.5

31 3 ITU-R S.49-2 LO-RDI SBE SBE TU-AIS HO-RDI AU-AIS 2 S-IOS RDI (5) (5) 5 - SBE () S-IOS AIS SBE SEMF LO-RDI TU-AIS (4) (4) HO-RDI AU-AIS (3) (3) MS RDI MS AIS (2) LOS/LOF MS AIS MS RDI AU-LOP AU-AIS HO-RDI TU-LOP TU-AIS LO-RDI LOS/LOF S-IOS AIS S-IOS RDI AU-LOP AU-AIS HO-RDI TU-LOP TU-AIS LO-RDI SBE SBE "".SBE.. (AU). (TU).( ) MS RDI SBE () (2) (3) (4) (5)

32 ITU-R S VC-2 SBE 9. VC-2 SBE.. SBE. SBE SBE 9 STM-N STM-N SBE STUG-2 TU-2 TU-2 TU-2 SSTM-2 SSTM-2 SSTM-24 SSTM-23 R Q P P Q R 49-9.SBE STUG 20 / (LOVC).(LSSA) (SSPI) (SST). SBE.(ISI) : (LSSA) TU ) TU-2 TU - STUG TU (ITU-T G.783 (HPA) SSTM-/2n STUG - (S-IOS) TU VC-2 - STUG. TU-2 - (S-IOS) (SSOH).3.5 : S-IOS SSOH (DCC) - - (VOW) - VC-2 -.µs 500 -

33 33 ITU-R S SBE SSTM-2n SSTM-2n SSTM-2n ISI T2 ISI T2 ISI T2 S34 SST U32 S34 SST U32 S34 SST U32 S30 LSSA-m T2 S30 LSSA-m T2 S30 LSSA-m T2 MDSS MDSS t r r2 r3 t t S8 LPC-m S8 LPC-m S8 LPC-m S7 S6 HPA- mn / HPT-n U3 U5 S5 HPC-n S4 MSA S4 MSP S3 S2 N MST RST Y U2 U S SPI T

34 ITU-R S /2 TU-2 STUG-n (n =, 2) TU-2 STUG-2 TU-2 STUG STUG-2 4 TU-2 No. TU-2 No STUG TUG-2.STUG-2n STUG-2n (n = -6). TUG-2 TU-2 22

35 35 ITU-R S STUG-2n 4 TU-2 No. TU-2 No. 2 TU-2 No TUG-2 No. TUG-2 No. 2 TUG-2 No. n STUG-2n n n n n n n n 9 n SSTM- 23 8/4 SSTM-2 24 n 2 SSOH STUG-n 9 SSOH STUG-2n 9

36 ITU-R S (SSOH) 25 (SSOH) DCC BIP SSOH.μs 25 (SSOH) : ( 4 32) (FAW).(SSTM) (SST) FAW (CC ) ms FAW V μs 500.STUG..A04E9EC5 Hex 32 FAW. 32. ( 8). ( ) (25μs 8) ms.. 8 μs 25.. ( 3 24)

37 37 ITU-R S.49-2 ( ) (VOW).kbit/s 8 (VOW). VOW. ( ) (DCC). DCC.kbit/s 6 DCC. DCC DCC ( ). (SSOH) ( 4) (BIP-4) BIP-4.(SSTM) (25 µs 8) CC. 24.μs 25 CC (CC)..ms CC CC. CC : ms (SSOH) CC CC VC-2 VC (6 ) 63..() (SSTM-26) 8.

38 ITU-R S ms. (8 7 ) :. REI 00 REI 0 RDI 0.RDI (4 9 ) 63..() (SSTM-26) 8..ms. (6 5 ) :. (VOW) (22 7 ) VC-2.SSTM-2k SSTM-n VC (SSTM-26) 8 63 VC-2.. (24 23 ) VC-2.VC-2 VC-2 00 VC-2 0 ATM VC-2 0.

39 39 ITU-R S (SSOH) STM- S-IOS (kbit/s) SSOH (kbit/s) (kbit/s) SSTM-2n TU-2 2 TU-2 TUG-2 2 TUG-2 3 TUG-2 4 TUG-2 5 TUG-2 6 TUG-2 - SSTM- SSTM-2 SSTM-2 SSTM-22 SSTM-23 SSTM-24 SSTM-25 SSTM ((SDH) ) SDH TU /.(TU).27 ( ) (SBE) SDH 27 SBE (TU) ((LSSA) ) LSSA VC-2 LPC PB MB PI STUG-n SST SETS :LPC :SST :MB :PB :PI (MB) (PB)..ITU-T G.783 (TU)

40 TU ITU-R S (TU) (LSSA).3 - (OAM) (OAM) SDH STM- SBE SBE STM- SDH Sub-STM-0 SDH STM- SBE SBE STM- SDH (LOF) (LOS) SBE (MS AIS) (SDH) SBE AU/TU TU-AIS AU-AIS.(S-IOS) RDI (LOP) SBE SBE TU-AIS (SDH).LO-RDI SBE RDI. RDI SBE ITU-T G ITU-T G.707.(MS AIS) LOP LOF LOS LO-RDI HO-RDI MS RDI.TU-AIS AU-AIS AIS LOS/LOF/LOP LOS/LOF/LOP RDI AIS RDI. RDI AIS

41 4 ITU-R S.49-2 LO-RDI SBE SBE TU-AIS S-IOS RDI (4) (4) SBE S-IOS AIS () SBE SEMF LO-RDI TU-AIS (3) (3) HO-RDI AU-AIS MS RDI MS AIS (2) LOS/LOF MS AIS MS RDI AU-LOP AU-AIS HO-RDI TU-LOP TU-AIS LO-RDI LOS/LOF S-IOS AIS S-IOS RDI TU-LOP TU-AIS LO-RDI SBE SBE "".SBE.. (TU).( ) MS RDI SBE () (2) (3) (4)

42 ITU-R S (SSOH) (DCC) (SDH). DCC (MIB) (SDH). DCC... (SSCOP) kbit/s.( Q.SAAL ) ITU-T Q.20 SSCOP.2 ITU-T Q.200 SSCOP SDH (SSCF).B-ISDN UNI ITU-T Q.230 SSCF.8 3 SSCOP SSCF

43 43 ITU-R S.49-2 A 29 DCC DCC DCC DCC B 49-29

44 ITU-R S MIB 2 MIB 30 MIB 2 MIB 2 3 MIB 49-30

45 45 ITU-R S SSCF SSCOP 49-3 J0 8 SSCOP ESTABLISH RELEASE DATA RESYNCH ERROR UNIT DATA RELEASE BUFF..Q.230 ITU-T Q.20 SDL.ESTABLISH/RELEASE UNIT DATA

46 ITU-R S SSCOP. (SSOH) (ISO) 32 (CRC) XID 8885.(32 ) 4335 ISO 84H XID. (LSB) (SSDH) 32 (DCC) XID SSCOP CRC_ ISO 4335 SSCOP. SABME/UA.SSCOP " " XID.9 9 XID SSCOP 8 SSCOP (84H) FLAG ADDRESS CONTROL FORMAT ID INFORMATION CRC_32. (LSB)

47 47 ITU-R S.49-2 SDH SSCF : SSCF J0 0 ESTABLISH RELEASE DATA UNIT DATA SSCOP 2.2. () 0, ,5 SSCOP TIMER_POLL TIMER_NO-RESPONSE TIMER_KEEP-ALIVE TIMER_IDLE TIMER_CC SSCOP ( ) 67 2 PDU UU BGN PDU RS ER END (CC) VT STATPDU SSCOP Max SD/UD/MD-PDU length Max UU field length MaxCC MaxPD MaxSTAT Clear-buffers Credit

48 ITU-R S SSCOP SSCOP. SSCOP (PDUs) :DATA RELEASE ESTABLISH 3 2. ESTABLISH RELEASE DATA.T SSCOP PDU.PDU PDU 3.ITU-T T (TLV) ITU-T X.209. ITU-T X

49 49 ITU-R S.49-2 (SOH).SDH 4 4 J0 4- S ) D ( C 05 0D FF 0E....SSCOP PDU. SSCOP. ( )

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