Introduction to Frame Structure and Alarm Analysis in OTN

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Introduction to Frame Structure and Alarm Analysis in OTN (G.709) an!  an! "in!#han! "in!#han! $%&'() $%&'() www.huawei.com

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+owad 

What is OTN?



What is G.709? The relation beteen OTN an! G.709?



Why e learn the G.709 an! OTN?



What nee! e "ay #ore attention to ?

+owad 

What is OTN?



What is G.709? The relation beteen OTN an! G.709?



Why e learn the G.709 an! OTN?



What nee! e "ay #ore attention to ?

Ob$ective %&ter 'nishin( this course) you are able to: 

/now the 0a1ic 2nowled!e a0out OTN and G.34(.



"a1te the 5ame 1tuctue o5 OTN.

6

"a1te the alam 171tem and anal71i1 in OTN a88lication1.

/ontents *art+

OTN Overvie

*art,

G.709 Intro!uction

*art-

G.709 Overhea!s

*art

OTN /o##on

%lar#s *art OTN in +100G *ro!uct

2asic 3nole!(e o& OTN 4unctions o& S56 Su88ot1 tan1mi11ion o5 multi8le 1e9ice1* :DH, I:, Ethenet, ... :o9ide1 a0undant 8otection and mana!ement 5unction1.

4unctions o& W5 Im8o9e1 the 0andwidth utili#ation, and 1u88ot1 tan18aent 1e9ice tan1mi11ion.

4unctions o& OTN Builds an optical transport networ plat!or" integrating ad#antages o! $%& and '%

2asic 3nole!(e o& OTN OTN: The o"tical trans"ort netor8 OTN is a 8in! o& trans#ission

6

syste#. Con1i1t1 o5 a 1eie1 o5 netwo2 element1 connected u1in! o8tical f0e1.



:o9ide1 o8tical channel1 to ca7 client 1i!nal1, inde8endent o5 client1.



:o9ide1 tan1mi11ion, multi8le-in!, outin!, mana!ement and monitoin!



o5 client 1i!nal1. 6

;a1ed on the o9ehead de1i!n o5 SDH, OTN intoduce1 a0undant o9ehead1, thu1 deli9ein! a eal OA"<: ca8a0ilit7.

6

OTN defne1 thee o8tical la7e1* OCH, O"Sn and OTSn. OCH i1 eali#ed thou!h O:U2, ODU2 and OTU2 1u0=la7e1 in the di!ital domain.

6

OTN defne1 inta=domain and inte=domain netwo2 inte5ace1.

6

OTN intoduce1 out0and +EC, im8o9in! the eo toleance o5 line1.

Structure an! Inter&aces o& OTN La7e1* OCH, O"Sn, OTSn

lients (e.. ST"$N% AT"% I#% *t+ernet)

Inte5ace1* OT"=n.m, OT"=n.m, OT"=4.m n* indicate1 the num0e o5 wa9e1 caied in



O#U

ma-imum ca8acit7. m* indicate1 the tan1mi11ion ate, includin!*



ODU# ODU ODUT

'>OTU'?, &>OTU&?, @>OTU@?, '&>OTU' < OTU& mi-ed?, &@>OTU& < OTU@ mi-ed?, '&@>OTU' < OTU& < OTU@ mi-ed?

OTU!

OTU

O+

OTU!

O+r

OTU

e r u t + c u r ( t O s , u s

* indicate1 the 5unction that ha1 0een



emo9ed 5om the OT". Hee, the OSC 5unction i1 emo9ed. 4 indicate1 1in!le wa9e.

O"Sn O#Sn OTSn

With OSC 1i!nal1 added, OT"=n.m 0ecome1



OT"=n.m. OT"=4.m i1 a 18ecial e-am8le o5 OT"=n.m.



Thin2in!* What i1 the meanin! o5 OT"=%4.'&@

OT"$n.m

OT"$0.m% OT"$nr.m

Full 'unctionality OT" inter'ace

&educed 'unctionality OT" inter'ace

4or !etails about OTN structure corelations) see ne;t "a(e.

OTN Structure
lient

O O

O+ #ayload Unit (O#U)

lient

O+ Data Unit (ODU)

O#Uk ODUk

F*

O-tical +annel (O+)

OTU O

O

O-tical +annel arrier (O)

O

O"Sn O#Sn OTSn

O+ Trans-ort Unit (OTU)

O#S0

O-tical "ulti-le1 Section O-tical Transmission Section OT" Oer+ead Sinal

OT"$nr.m2n%3it+out OS

OT"$0.m

O-tical Su-erisory +annel O-tical #+ysical Section

In O#U 、 ODU 、 OTU %t+e alue 'or  is 4%5% or 6

OT"$n.m2n%OS

4 'or 5.G%5 'or 40G% 6 'or 80G

Lin8in( ith W5 The tan1mit OTU in the wa9elen!th di9i1ion eBui8ment con9et1 client



1i!nal1 into OCC 1i!nal1. The ecei9e OTU con9et1 OCC 1i!nal1 into client 1i!nal1. The multi8le-in! module >the o8tical multi8le-e o the add 8at o5 OAD"? in



the wa9elen!th di9i1ion eBui8ment con9et1 multi8le inde8endent wa9elen!th 1i!nal1 into main channel 1i!nal1, which i1 multi8le-in! o5 O"Sn >o8tical multi8le- 1ection?. The demulti8le-in! module >the o8tical demulti8le-e o the do8 8at o5 OAD"? in the wa9elen!th di9i1ion eBui8ment con9et1 main channel 1i!nal1 into multi8le inde8endent wa9elen!th 1i!nal1, which i1 demulti8le-in! o5 O"Sn >o8tical multi8le- 1ection?. ;etween the main o8tical channel and the o8tical am8life, thee i1 an OTSn



>O8tical Tan18ot Section?.

Su##ary 6

Defnition o5 OTN

6

OTN hieach7

6

Su0=la7e1 o5 the OCh la7e o5 OTN

6

A9aila0le 9alue1 and meanin!1 o5 2, m, n,  and 4

6

Ad9anta!e1 o5 OTN

/ontents *art+

OTN Overvie

*art,

G.709 Intro!uction

*art-

G.709 Overhea!s

*art

OTN /o##on


OTN Netor8 Inter&aces  

U1e to Netwo2 Inte5ace >UNI? Netwo2 Node Inte5ace >NNI?  Inte Domain Inte5ace >IDI?  Inta Domain Inte5ace >IaDI? Inte5ace1 0etween eBui8ment o5 dieent 9endo1 >II? Inte5ace1 within the 1u0netwo2 o5 one 9endo >IaI? Net3or O-erator 

US*&

Net3or O-erator

A

 OT" UNI

OT" NNI

OT"

IaDI$Ir!I

NNI

OT" NNI

OT" NNI

IaDI$Ia!I

IaDI$Ia!I

!endor :

!endor ;

IrDI

G.709 5escri"tion G.709 is one o& the "rotocols use! in OTN. Item

SDH

Su!!e1ted 5amewo2 De9ice and 1u0171tem

OTN G4.)3'

G.', G.&, G.@, G.3'

G.', .&, G.@, G.3'

+unction and 5eatue

G.3)@, G.3)%, G.)'@, G.)&F,

G.)', G.3()

G.)&, G.(F), G.E:"S :h71ical la7e

G.34@, G.(F3, G.('

G.(',G.(&,G.%,G.( F(.'

O9eall achitectue

G.)4@, G.)4F

G.)3&, G.)3@

Stuctue and ma88in!

G.343, G.)@&

G4.34(

"ana!ement

G.33%=-, G.3)%, G.)@'

G.)3%, G.)3F

G.709 de'ines t+e strcture and ma--in o' OTN.

4ra#e Structure o& G.709 4

4 Alinm

OTUk O

5

. O

lient Sinal ma--ed in k #ayload O#U O#Uk #ayload

k

6

8  5 5 < < 6 6

8  = 7 4 4 4 4

7 <

ODUk OH

U # O

0 < 0 8

OTUk F*

8

lient Sinal O#Uk － O-tical +annel #ayload Unit ODUk

O-tical +annel Data Unit

OTUk － O-tical +annel Trans-ort Unit Frame delimitation

 indicates t.e rate le#el: 4 5.G 5 40G 6 80G

/o#"arison beteen 4ra#e Structures o& G.709 an! S56 G+0, /ra"e $tructure  Frame structure2 9 ro3s and

570n columns% aria,le in lent+  Frame rate2 <000

'rames?second% 3+ic+ is 'i1ed  Includin2 section oer+ead% 

Frame structure2 8 ro3s and 80<0

-ointer% c+annel oer+ead% and -ayload

columns% 3+ic+ is 'i1ed 



Frame rate2 aria,le 50.850 > (8<.974

s) 'or OTU4

<5.057 > (45.494

s) 'or OTU5

659.8<9 > (6.06

s) 'or OTU6

Includin2 O#U% ODU% OTU and F*

8000 !ra"es -er second

/o#"arison beteen 4ra#e Structures o& G.709 an! S56

a""in( o& G.709 





  

ST"=N  N=+1) 1) ,1 I: and Ethenet 1i!nal  G.709 su""orts client !ata enca"sulation base! on "ac8ets.  >nca"sulates I* si(nals !irectly ithout S56 or +0G >thernet su""ort  Uses the G4* "rotocol AT" 1i!nal  Su""orts client si(nal #a""in( base! on cells.  a"s si(nals &ro# %T to O5U8 as si#"ly as &ro# %T to S56. Te1t 1i!nal ;it 1team >not in 07te 5omat? C; 1i!nal >with un2nown 0it ate?

%bstract 6

what i1 the 5ame o5 G.34(

6

what i1 the mao dieence 0etween the 5ame o5 G.34( and SDH

/ontents *art+

OTN Overvie

*art,

G.709 Intro!uction

*art-

G.709 Overhea!s

*art

OTN /o##on


OTU8O5U8O*U8 Overhea!s8=+),)- olumn 1

&o3 1 2 3 4

+

OTUk F&A"* A@IGN"*NT "FAS AlinmFAS O!*&*AD A&*A O . O T" T"= &*S k AT T"6 G4

8

14

O

A#S?#

1*

( &*S I B F I D "a--in ( AB * A  oncat FTF@ &*S * . * # S-eci'ic S & & A &*S B *:#  * U ! # O O NBO #BO #SI

OTU S#*IFI O!*&*AD A&*A S" G0 &*S

T" T"8 O#U k #ayload U #ODU S#*IFI ODUk T"5 T"4O!*&*AD A&*A #" G5

15

&*S

AT2 Actiation?deactiation control c+annel "FAS2 "ultiFrame Alinment Sinal 1 2 3 1 9 10 127 128 129 137 138 255 A#S2 0 Automatic #rotection S3ic+in #2 #rotection ommunication ontrol c+annel 0 1 2 3 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 #T i Operator Operator 1 2 coordination c+annel #"2 #at+ "onitorin 3 Operator I46 Specific Operator Specific " // ( 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 7 8 Identifier Identifier D 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 STAT 8 # TTI I#$< *:#2 *1-erimental #SI2 #ayload Structure *IIdenti'ier i 2 I "a--in 9 I * 0 D A&*S " Alinment Sinal I#$<&esered 'or *I?IA* FAS2FaultFrame &*S2 'uture D international TTITTI I#$< STAT I  oncat *I?IA* Fault ( Forward Backward 9 9 T FTF@2 Fault Ty-e  Fault @ocation standardisation Indication Indication 5 S-eci'ic Field re-ortin Field c+annel 15 16 Section "onitorin 0 31S"2 32 63 G2 GeneralSource ommunication +annel Access T"2 Tandem onnection "onitorin Access Destination Operator Specific TTI Point Identifier Point Identifier



OTU8O5U8 Overhea!s 8=+),)- +ame Ali!nment Si!nal － +AS （  ;7te1? OA' ＝ +h ， OA& ＝ &)h

FAS OH Byte 1

FAS OH Byte 3

FAS OH Byte 2

FAS OH Byte 4

FAS OH Byte 5

FAS OH Byte 6

1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 OA1

OA1

OA1

OA2

OA2

OA2 1542510-00



"ulti5ame Ali!nment Si!nal － "+AS （ ' ;7te ） , A multi5ame con1i1t1 o5

&F 5ame1 （ &F;7te ） MFAS OH Byte 1

2

3

4

5

6

7

8

0 0 0 0 0

0 0 0 0 1

0 0 1 1 0

0 1 0 1 0

1 1 0 0

1 1 0 0

1 1 0 0

0 1 0 1

) )

0 0 0 0 0

0 0 0 0 0

0 0 0 0 0

0 0 0 0 0

1 1 0 0

1 1 0 0

1 1 0 0

1 1 0 0

) ) ) )

) )

M F A S s e  u e n c e

1542520-00

OTU8 Overhea!s 8=+),)-



OTU8 S overhea! - bytes



OTU8 S 2I*@A byte + 2yte

1 1 i e 2 # a " F 3

4 1 1 $ i e # 2 a " F

1 2 3 4 514 156 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 83824 8 ! I B

TTI

BIP-8

BEI/BIAE

RES

OPUk

8 ! I B

BDI

IAE

BI!8

3 4

2 1 $ i e # 2 a " F

8 ! I B

3 4

1542550-00

OTU8 Overhea!s 8=+),)- OTU2 S" ;EI and ;IAE 0it1* u1ed to 1end 0ac2 the ;I:=) eo and IAE ecei9ed 07 OTU2. When the OTU2 S" ;EI$;IAE 0it1 ae '4'', it indicate1 the ;IAE. OTU2 S" ;EI$;IAE 0it1 '&@%

;IAE

;I: 9iolation1

4444

5al1e

4

444'

5al1e

'

44'4

5al1e

&

44''

5al1e

@

4'44

5al1e

%

4'4'

5al1e

F

4''4

5al1e



4'''

5al1e

3

'444

5al1e

)

'44','4'4

5al1e

4

'4''

tue

4

''44 to ''''

5al1e

4

OTU8 Overhea!s 8=+),)- OTU8 S 25I bit

6



U1ed to 1end 0ac2 the SD 1tatu1 ecei9ed 07 OTU2 ；



When the OTU2 S" ;DI 0it i1 ', it indicate1 the de5ect 1tatu1. Othewi1e, the OTU2 S" ;DI 0it i1 4.

OTU8 S I%> bit

6



U1ed to indicate the t he incomin! ali!nment eo ecei9ed 07 OTU2



When the OTU2 S" IAE 0it i1 ', it indicate1 the ali!nment eo. eo. Othewi1e, the OTU2 S" IAE 0it i1 4.

O5U8 Overhea!s 8=+),)- ODU2 :" OH （ @ ;7te1?



1

2

3

4

5

6

7

8

1

2

3

TTI 

1

8 ! I B

6

7

8

BIP-8

1

2

3

BEI

4

5

6

7

8

STAT

BDI

14 15

3824

OPUk

4 1 1 $ i e # 2 a " F

5

ODU2 :" OH ;I:=)07te >' ;7te? 1

i e 2 # a " F 3

4

8 ! I B

BI!8

3 4

2 1 $ i e # 2 a " F

8 ! I B

3 4

1542550-00

O5U8 Overhea!s 8=+),)- O5U8 * 2>I bit: Use! to sen! bac8 the 2I*@A error receive! by O5U8

ODU2 :" ;EI 0it1 '&@%

;I: 9iolation1

4444

4

444'

'

44'4

&

44''

@

4'44

%

4'4'

F

4''4



4'''

3

'444

)

'44' to ''''

4

O5U8 Overhea!s 8=+),)- O5U8 * 25I bit: Use! to sen! bac8 the S5 status receive! by OTU8. When the O5U8 * 25I bit is B+B) it in!icates the !e&ect status. Otherise) the O5U8 * 25I bit is B0B. O5U8 * ST%T bit: In!icates the channel status o& O5U8 :" 07te @, 0it1 3)

Statu1

444

e1e9ed 5o 5utue intenational 1tandadi#ation

44'

Nomal 8ath 1i!nal

4'4


4''


'44


'4'

"aintenance 1i!nal* ODU2=LC/

''4

"aintenance 1i!nal* ODU2=OCI

'''

"aintenance 1i!nal* ODU2=AIS

6

O5U8 Overhea!s O5U8 T/i overhea! i=+C1 8=+),)- Its &unctions are si#ilar to those o& S*



overhea!s. 5etails are o#itte! here

1

2

3

4

5

TTIi

6

7

8

1

2

3

4

5

BIP-8i

6

7

8

1

2

3

4

5

BEIi/BIAEi

BDIi

6

7

8

STATi

O5U8 Overhea!s 8=+),)- 6

O5U8 %*S an! *// bytes: Su""ort A@level neste! "rotection via 4%S "+AS 0it 3)

A:S$:CC channel a88lie1 to

444

ODU2 :ath

44'

ODU2 TC"'

4'4

ODU2 TC"&

4''

ODU2 TC"@

'44

ODU2 TC"%

'4'

ODU2 TC"F

''4

ODU2 TC"

'''

ODU2 SNC$I A:S

6

O5U8 Overhea!s 8=+),)- ODU2 +T+L 07te1 



The +T+L 07te1 o5 &F 5ame1 com8i1e &F=07te +T+L in5omation ;7te1 4 to '&3 ae the 5owad indication aea. ;7te1 '&) to &FF ae the 0 1 0ac2wad indication aea.

127 128 129

Fo"%a"d &ield

255

Bac'%a"d &ield 1542*,0-00



The 5owad and 0ac2wad indication aea1 can 0 e di9ided into thee 1u0=aea1 e18ecti9el7. 0

1

9 10

O(e"ato" identi&ie" &ield Fault indication &ield 128 129

127 O(e"ato")s(eci&ic &ield

Forward

137 138

255 O(e"ato")s(eci&ic &ield

O(e"ato" identi&ie" &ield

1542+00-00

Fault indication &ield

Backward

O5U8 Overhea!s 8=+),)- 

4ault in!ication co!e +ault indication code

Defnition

4444 4444

No +ault

4444 444'

Si!nal +ail

4444 44'4

Si!nal De!ade

4444 44'' . . .

e1e9ed 5o 5utue intenational Standadi#ation

'''' '''' 

4orar!2ac8ar! o"erator i!enti'er 4iel!: in!icates the &orar!bac8ar! country or area co!e an! o"erator co!e.

O*U8 Overhea!s 8=+),)- O*U8 *SI an! *T overhea!s olu"n  1 1

2

3

4

5

*

+

8

,

11

12

13

14

6 o#er.ead

/ra"e 7lign"ent o#er.ead

3 2 w o R 3

10

15

apping  oncatenation speci!ic

%6 o#er.ead

P$

4



O:U2 :SI



A &F=07te :SI 1i!nal i1 5omed 9ia multi5ame1.

0 1

P

:SI4J i1 in 8o1ition 4444 4444 o5 "+A, :SI'J i1 n o i 8 t c g a i ! n n i i c e p t e p a p a c $ n ( o 2

in 8o1ition 4444 444', and 1o on. 

O:U2 :T



A9aila0le in :SI4J. +o o9ehead de1ci8tion1, 1ee

1*

the 5ollowin! ta0le. 255

O*U8 Overhea!s O#U #ayload (#T) Inter-retation 8=+),)- "S; '&@%

LS; F3)

He- code >Note '?

4444

444'

4'

E-8eimental ma88in! >Note @?

4444

44'4

4&

A17nchonou1 C; ma88in!, 1ee '3.'

4444

44''

4@

;it 17nchonou1 C; ma88in!, 1ee '3.'

4444

4'44

4%

AT" ma88in!, 1ee '3.&

4444

4'4'

4F

G+: ma88in!, 1ee '3.@

4444

4''4

4

itual Concatenated 1i!nal, 1ee ') >NOTE F?

444'

4444

'4

;it 1team with octet timin! ma88in!, 1ee '3.F.'

444'

444'

''

;it 1team without octet timin! ma88in!, 1ee '3.F.&

44'4

4''4

&4

ODU multi8le- 1tuctue, 1ee '(

4'4'

4'4'

FF

Not a9aila0le >Note &?

4''4

4''4




'444

----

)4=)+

''''

''4'

+D

NULL te1t 1i!nal ma88in!, 1ee '3.%.'

''''

'''4

+E

:;S te1t 1i!nal ma88in!, 1ee '3.%.&

''''

''''

++


Inte8etation

e1e9ed code1 5o 8o8ieta7 u1e >Note %?

O*U8 Overhea!s 4 ''4 4''4  Not a9aila0le >Note &? 8=+),)- '444

----

)4=)+

e1e9ed code1 5o 8o8ieta7 u1e >Note %?

''''

''4'

+D

NULL te1t 1i!nal ma88in!, 1ee '3.%.'

''''

'''4

+E

:;S te1t 1i!nal ma88in!, 1ee '3.%.&

''''

''''

++


NOTE '  Thee ae && 18ae code1 le5t 5o 5utue intenational 1tandadi#ation. e5e to Anne- A$G.)4 5o the 8ocedue to o0tain one o5 the1e code1 5o a new 8a7load t78e. NOTE &  The1e 9alue1 ae e-cluded 5om the 1et o5 a9aila0le code 8oint1. The1e 0it 8atten1 ae 8e1ent in ODU2 maintenance 1i!nal1. NOTE @  alue 4' i1 onl7 to 0e u1ed 5o e-8eimental acti9itie1 in ca1e1 whee a ma88in! code i1 not defned in thi1 ta0le. e5e to Anne- A$G.)4 5o moe in5omation on the u1e o5 thi1 code. NOTE %  The1e ' code 9alue1 will not 0e 1u0ect to 5uthe 1tandadi#ation. e5e to Anne- A$G.)4 5o moe in5omation on the u1e o5 the1e code1. NOTE F  +o the 8a7load t78e o5 the 9itual concatenated 1i!nal a dedicated 8a7load t78e o9ehead >9c:T? i1 u1ed, 1ee ').

/o#"arison ith S56 Overhea!

Su##ary 6

Com8o1ition o5 G.34( o9ehead1

6

Common o9ehead1

6

Dieence1 0etween S" and :"

6

Com8ai1on with SDH o9ehead

/ontents *art+

OTN Overvie

*art,

G.709 Intro!uction

*art-

G.709 Overhea!s

*art

OTN /o##on


OTN co##on alar# 6 6 6 6 6 6 6 6 6 6

OTU=AIS OTU=LO+$S"=;DI OTU=OO" S"=;I:)=OE$SD S"=;EI S"=TI" :"=TI" ODU=AIS$:"=;DI :"=;I:)=OE$SD :"=;EI

OTN co##on alar# @@@@OTU8@%IS 1

14 15

3824 3825

1 2

&e-eatin) #N$44 seCuence 3 4

All t+e OTU sinal is 4

4080

OTN /o##on %lar#sDOTU@ LO4OUT@OOS@25I olu#n + 1 1 + 2 % o * 3 4

2

3

4 FAS

5

6

7

8

MFAS

O,-' O.e"/ead

9

10

11

12

O-' O.e"/ead

13

14

15

16

d a e / " e . O ' ! O

1542500-00 (114+3,)

When +AS can 0e 5ound in f9e con1ecuti9e 5ame1, the down1team 0oad e8ot1 an OTU=OO+ alam. When +AS cannot 0e 5ound in @ m1, the 0oad e8ot1 an OTU=LO+ alam. "eanwhile, the 0oad etun1 a S"=;DI alam to the u81team 0oad. When the detected "+AS i1 not the e-8ected 9alue, the down1team 0oad e8ot1 an OTU=OO" alam. Mue1tion* I1 a S"=;DI alam etuned when the OTU=OO+ and OTU=OO" alam1 ae e8oted. 

OTN /o##on %lar#sDS@ TI*@TI

SM

1

I

When the ecei9ed TTI i1 5ound dieent



15 16

0oad e8ot1 a TI" alam.

3

BI!)8

1

0 SA!I

5om the ecei9a0le one, the down1team

2

,A!I

2

3

BI

4

5

6

7

8

I 2 , A *S B I 1542540-00 (114+3,)

31 32

P 1

2



BP-8

O(e"ato" S(eci&ic

3

63 0

1

$7P 15 1*

%7P 31 32

perator $peci!ic *3

2

3

B9

4

5

4 % B

6

7

8

$7

I5 the TTI o5 S" i1 incon1i1tent, the 0oad e8ot1 a S"=TI" alam. I5 the TTI o5 :" i1 incon1i1tent, the 0oad e8ot1 a :"=TI" alam. Simila to 4"" o5 SDH, the de5ault TTI o5 Huawei 0oad1 i1 null. 

OTN co##on alar#DO5U8@%IS  In an ODU2=AIS, all othe 0it1 ae ' e-ce8t +T+L. See 7ellow aea1

0elow.  When the client 1ide !eneate1 a =LOS alam, the WD" 1ide

e8ot1 an ODU2=AIS alam >when a 0oad i1 5oced to li!ht, the down1team 0oad 1hould e8ot an ODU2=AIS alam?.  When detectin! the ODU2=AIS alam, the down1team 0oad

etun1 a :"=;DI 1i!nal >namel7, 0it F o5 the thid 07te o5 :" i1 '? to the u81team 0oad. P

 Detection i1 to chec2 0it1  to ) o5 the thid 07te o5 :". I5 ''' i1

detected, an ODU2=AIS alam i1 !eneated. 1 1

+8 /7 &

2 3

0 7 0 $

0 7 0 $ 0 7 0 $

14

1+

0 1 / 7 0 0 / $ 0 7 0 $

2

3



BP-8

3824 0

 6 & 0 7 0 $ 0 7 0 $

1

1

$7P

7ll-1:s pattern

15 1*

%7P

4 31 32

perator $peci!ic *3

2

3

B9

4

5

4 % B

6

7

8

$7

OTN /o##on %lar#sDO5U8@O/I  ODU2=OCI u1e1 e8eated 4''44''4 to fll u8 the whole ODU2

5ame. See oan!e aea1.  When detectin! an ODU2=OCI alam, the 0oad etun1 a :"=;DI

1i!nal >namel7 0it F o5 the thid 07te o5 :" i1 '? to the u81team 0oad. Detection i1 to chec2 the STAT 0it1 o5 :". I5 ''4 i1 detected, an ODU2=OCI alam i1 !eneated. P

1 1

+8 /7 &

2 3

0 7 0 $

0 7 0 $ 0 7 0 $

14

1+

1

2

3



BP-8

3824

6 & 0 7 0 $ 0 7 0 $

0 7 0 $ 0 7 0 $

0

Repeating ;0110 0110; pattern

1

$7P 15 1*

4

%7P 31 32


2

3

B9

4

5

4 % B

6

7

8

$7

OTN /o##on %lar#sDO5U8@L/3 

ODU2=LC/ u1e1 e8eated 4'4'4'4' to fll u8 the whole ODU2 5ame. See 8in2 aea1.  When detectin! an ODU2=LC/ alam, the 0oad etun1 a :"=;DI 1i!nal to the u81team 0oad.  Detection i1 to chec2 the STAT 0it1 o5 :". I5 '4' i1 detected, an ODU2=LC/ alam i1 !eneated. P

1 1

+8 /7 &

2 3 4

0 7 0 $

0 7 0 $ 0 7 0 $

14

1+

3824

0 7 0 $ 0 7 0 $

2



BP-8

0

15 1*

Repeating ;0101 0101; pattern

%7P 31 32


3

1

$7P

6 & 0 7 0 $ 0 7 0 $

1

2

3

B9

4

5

4 % B

6

7

8

$7

OTN /o##on %lar#sD*@25I P

:"=;DI i1 an alam etuned 07 a



0oad to it1 u81team 0oad when an7 o5 ODU2=AIS, ODU2=OCI and ODU2=CL/ i1 detected.

1

2



BP-8

0

1

$7P 15 1*

%7P 31

Deci1ion i1 made on the 0a1i1 o5 the

32



perator $peci!ic

;DI 0it in :". I5 the ;DI 0it i1 ', a :"= ;DI alam i1 !eneated.

*3

3

2

3

B9

4

5

4 % B

6

7

8

$7

OTN /o##on %lar#sDS 2I*@A* 2I*@A 1

14 15

3824

1 i e 2 # a " F 3

8 ! I B

OPUk

4 1 1 $ i e # 2 a " F

3

BI!8

8 ! I B

4 2 1 $ i e # 2 a " F

3

8 ! I B

4

15425,0-00

(114+3,) S" ;I:=) and :" ;I:=) concen calculation1 in O:U2, includin! O:U2 OH >ow1 'F to @)&%?.

6

6 The S" ;I:=) and :" ;I:=) calculation e1ult1 o5 5ame i ae 8laced in 5ame i&.

;7 de5ault, the S"$:" ;I:) OE the1hold o5 Huawei 8oduct1 i1 '4E=@, and the S"$:" ;I:)

6

SD the1hold i1 '4E=.

OTN /o##on %lar#sDS 2I*@A* 2I*@A 

;I:) the1hold Bue7*

c&(@(et@bi"Ath:2i!) *ort) th@ty"eE th@ty"e: bi"@s#: 2I*A bit error in S section bi"@"#: 2I*A bit error in * section 

;I:) the1hold 1ettin!* c&(@set@bi"Ath:2i!) *ort) th@ty"e) over@th) s!@thE 2it error threshol!@crossin( level: C7 !e&ault value: 7 2it error !e(ra!ation level: +C !e&ault value:  eanin(s o& threshol! level values: ' － '.4E=(, & － '.4E=), @ － '.4E=3, % － '.4E=, F － '.4E=F,  － '.4E=%, 3 － '.4E=@

OTN /o##on %lar#sDS@2>I an! *@2>I 

S"=;EIS"=;EI i1 a 0ac2wad eo indication that i1 etuned 07 a 0oad to it1 u81team 0oad, indicatin! the num0e o5 0it eo1 detected in the ;I:=) 0it1 o5 S". +o meanin!1 o5 0it1, 1ee ne-t 8a!e.



:"=;EI:"=;EI i1 a 0ac2wad eo indication that i1 etuned 07 a 0oad to it1 u81team 0oad, indicatin! the num0e o5 0it1 eo1 detected in the ;I:=) 0it1 o5 :". +o meanin!1 o5 0it1, 1ee ne-t 8a!e.



OTN alam 1u88e11ion i1 the alam 1u88e11ion 0etween the WD" ecei9e 1ide and SDH tan1mitte 1ide.

OTN /o##on %lar#s @@@@S@2>I OTU2 S" ;EI u1ed to 1end 0ac2 the ;I:=) eo

6

OTU2 S" ;EI$;IAE

;IAE

0it1

;I: 9iolation1

'&@% 4444

5al1e

4

444'

5al1e

'

44'4

5al1e

&

44''

5al1e

@

4'44

5al1e

%

4'4'

5al1e

F

4''4

5al1e



4'''

5al1e

3

'444

5al1e

)

'44','4'4

5al1e

4

'4''

tue

4

''44 to ''''

5al1e

4

S" 1

2

TTI

I#$<

1

0 SA#I 4 4=

2

3

4

5

6

7

64 65 O-erator S-eci'ic

8

I * *I?IA* D I &*S 9 A T48580$00 (448769)

DA#I

=6

3

OTN /o##on %lar#s @@@@*@2>I ODU2 :" ;EI 0it* U1ed to 1end 0ac2 the ;I:=) eo ecei9ed 07 ODU2

6

ODU2 :" ;EI

;I: 9iolation1

0it1 '&@% 4444

4

444'

'

44'4

&

44''

P

%

4'4'

F

4''4



2



BP-8

0

15 1*

%7P 31 32

4'''

3

'444

)

'44' to ''''

4


3

1

$7P

@

4'44

1

2

3

B9

4

5

6

4 % B

7

8

$7

Su""ression /orrelation 2eteen OTN %lar#s &@OS &@O OTUAIS F*@OF(OTU@OF) F*OOF OTUOO" ODUAIS S"TI"

ODUOI ODU@E

S"DI S"I#<*: S"IA* S"*I

#"TI" #"DI

&OOF &OOF

#"I#<*: #"*I

S"I#<SD

S"S AIS

#"I#<SD

5*: 4*:

S"S &*I B0""

5SD

F**&*: S"S &DI

4SD

Su##ary 6

Common alam1

6

Alam !eneatin! mechani1m

/ontents *art+

OTN Overvie

*art,

G.709 Intro!uction

*art-

G.709 Overhea!s

*art

OTN /o##on


/o##on 2oar! %lar#s o& +100G 5

4 lient side eCui-ment

OTU

6


OTU

A@S DISA@* on /D" side

OTU

4

5

6

8

SSE@LW+>S?

LOS

ODU=AIS

S"=;DI >Note '?

"S=AIS

SS>+L24S@S56

LOS

ODU=AIS

S"=;DI >Note '?

"S=AIS

SSE'L;+>S?=

LOS

ODU=AIS

S"=;DI >Note '?

Lin2=Eo

SSE'L;E>S?

LOS

ODU=AIS

S"=;DI>Note '?

Lin2=Eo

SSE&LW+>S?

LOS

ODU=AIS

:"=;DI

"S=AIS

SSE'LW+>S?

LOS

ODU=AIS

:"=;DI

"S=AIS

SSE'LWC'

LOS

ODU=AIS

:"=;DI

"S=AIS

ecommendation

LOS

LO+

None

LO+

'4GE>tan18aent tan1mi11ion?

oard s.ould return a P-B% alar" w.en recei#ing a %6-7$ signal &owe#er= >ot. $-B% and P-B% alar"s are returned due to t.e processing c.ip de!ects n 1*00G= $-B% suppresses $-B% (not suppressed as speci!ied in Reco""endations) w.en t.e? coe@ist = so onl? t.e $-B% alar" is reported !inall?

OTN su""ort in +100G 6

The 0oad1 1u88ot OTN in'44G 

LW+,LW+S,+DG,L;E,L;ES,LOG,LOGS,L+,L+S,L WC',T",T"S,T"P,T"PS,TC',ET"P,ET"PS, L;+,L;+S

/o##on 2oar! %lar#s o& +100G

5

lient side eCui-ment 4

6

OTU

lient side eCui-ment

lient side eCui-ment 8

OTU


7$ %$7B9 on '% side

4

5

6

8

/o##on 2oar! %lar#s o& +100G OUT SSE'T"P>S?

LOS on all the

SSE&T"P>S?

% channel1

ODU=AIS

LOS on 1ome

Client=S+ on

o5 the

coe18ondin!

channel1 >Q%?

channel1 >client 1ide?

SSE'ET"P>S

LOS on all the

ODU=AIS

?=SDH

% channel1

SSE'LOG>S?

LOS on 1ome

Client=S+ on

o5 the

coe18ondin!

channel1>Q%?


LOS on all the

ODU=AIS

) channel1

SSE'+DG

LOS on 1ome

Client=S+ on

o5 the

coe18ondin!

channel1 >Q)?


LOS on 0oth

Client=S+ on 0oth

channel1


LOS on one

Client=S+ on

channel

coe18ondin! channel

S"=;DI >chi8

LOS $ "S=AIS on all the % channel1 >ALS

de5ect?

ena0led$di1a0led on client 1ide?

None

LOS $ "S=AIS on coe18ondin! channel1 >ALS ena0led$di1a0led on client 1ide?

S"=;DI >chi8

LOS $ "S=AIS on all the % channel1 >ALS

de5ect?

ena0led$di1a0led on client 1ide?

None

LOS $ "S=AIS on coe18ondin! channel1 >ALS ena0led$di1a0led on client 1ide?

S"=;DI >chi8

Lin2=Eo on all the ) channel1 >ena0le

de5ect?

L:T ）

None

Lin2=Eo on coe18ondin! channel1 >ena0le L:T ）

None

LOS $ LOS$=DATA=LOST on 0oth channel1 >ALS ena0led$di1a0led on client 1ide?

None

LOS $ "S=AIS on coe18ondin! channel >ALS ena0led$di1a0led on client 1ide?

>client 1ide? ecommend

LOS on N

None

None

LO+ on N channel1

ation （ SDH

channel1

1e9ice?

LOS on 1ome

Client=S+ on

None

LO+ on coe18ondin! channel1

channel1

coe18ondin! channel1 >client 1ide?

SS>+>,>-LW4SSS>,LW/+ SS>+L24S@S56 Service /D" side

lient side

4 5

6 OTU


4

Si!nal 5om line1

6

5

:"=;I:)=EO

:"=;I:)=EO

:"=;EI

;it eo

S"=;I:)=EO

S"=;I:)=EO

S"=;EI

;it eo

OTU=AIS

OTU=AIS

S"=;DI

"S=AIS

OTU=LO+

OTU=LO+

S"=;DI

"S=AIS

No o8tical 1i!nal due to

LOS

S"=;DI

"S=AIS

ODU=AIS$LC/$OCI

S"=;DI

"S=AIS

0o2en f0e1 ODU=AIS$LC/$OCI

:"=;DI Note ' ）

Note '* E'$E&LW+>S? and SSE&LWC' etun :"=;DI alam1, which com8lie1 with OTN 1tandad1. E@LW+ >S? and E'L;+ >S? etun S"=;DI alam1, which i1 cau1ed 07 chi8 de5ect1. Accodin! to ecommendation1, a LO+ alam 1hould 0e etuned to the client when the WD" 1ide e8ot1 a LOS, OUT=LO+$AIS o ODU=AIS$LC/$OCI alam. +o the a0o9e 0oad1, the ALS on the client 1ide i1 ena0led 07 de5ault.

SS>+L2>SSS>+L24S @ +0G> /D" side lient side Service 4 6

5

OTU

Si!nal 5om line1


4

5

6

:"=;I:)=EO

:"=;I:)=EO

:"=;EI

DATA=EO

S"=;I:)=EO

S"=;I:)=EO

S"=;EI

DATA=EO

OTU=AIS

OTU=AIS

S"=;DI

LIN/=E

OTU=LO+

OTU=LO+

S"=;DI

LIN/=E

No o8tical 1i!nal due to 0o2en

LOS

S"=;DI

LIN/=E

ODU=AIS$LC/$OCI

S@25I chi" !e&ect

LIN/=E

f0e1 ODU=AIS$LC/$OCI

Re"ar: /or $$91B/-10G9 ser#ice= lin-error alar"s can >e generated in t.e transparent trans"ission "ode= >ut not in t.e con#ergence "ode currentl? (arc. 200+A to >e realied later)

SS>+TFSSS>,TFSSS>+>TF 4 6 S /D" side

lient side

OTU

5


4

Si!nal 5om line1

5

6

:"=;I:)=EO

:"=;I:)=EO

:"=;EI

No e-ce8tion

S"=;I:)=EO

S"=;I:)=EO

S"=;EI

No e-ce8tion

OTU=AIS

OTU=AIS

S"=;DI

S@%IS on all channels

OTU=LO+

OTU=LO+

S"=;DI

LOS

S"=;DI

ODU=AIS

ODU=AIS

S@25I chi" !e&ect

ODU=LC/$OCI

ODU=LC/$OCI

S@25I chi" !e&ect Note +

No o8tical 1i!nal due to 0o2en f0e1

S@%IS on all channels

LOSS@%IS on all channels Note - S@%IS on all channels S@%IS on all channels Note ,

Note 42 T+e *4T":(S) can return S"$DI alarms only in ersion 45= or a later ersion. Note 52 T+e *4T":(S) can return "S$AIS alarms only in ersion 48= or a later ersion. T+e *4T":(S) returns @OF alarms instead in all -reious ersions. Note 62 T+e A@S on t+e client side is ena,led ,y de'ault% so @OS alarms are returned.I' A@S is disa,led% "S$AIS alarms are returned instead.

SS>+45G

/D" side

4


OTU

5

Si!nal 5om line1

lient side

4

5

6

:"=;I:)=EO

:"=;I:)=EO

:"=;EI

No e-ce8tion

S"=;I:)=EO

S"=;I:)=EO

S"=;EI

No e-ce8tion

OTU=AIS

OTU=AIS

S"=;DI

LOS on all channels Note +

OTU=LO+

OTU=LO+

S"=;DI


No o8tical 1i!nal due

LOS

S"=;DI


ODU=AIS

ODU=AIS

:"=;DI


ODU=LC/$OCI

ODU=LC/$OCI

:"=;DI


to 0o2en f0e1

led >? de!ault= so $ alar"s are returned ! 7$ is disa>led= t.e interconnected /%G client will report R-%77-$ alar"s

Ter#inate! an!
/D" side

OTU (Trun ,oard)

lient side OTU


OO"% TI"% *I% DI and IA* alarms2 T+e /D" side c+ecs t+e re-orted alarms and terminates t+em.

OTU T"& @&F OO"% TI"% *I% DI and IA* alarms2 T+e receier side c+ecs t+e re-orted alarms and trans'ers t+em trans-arently to do3nstream sites.

OTN %lar# *rocessin( o& +100G Trun8 2oar!+

#rocessin on 4=00G Suc+ as2 T"&(S)% @&F(S) and T&4

!S

&ecommendations Note2 As s-eci'ied in recommendations% alarms in S" section s+ould ,e terminated in &*G ot+er t+an transmitted trans-arently to do3nstream sites.

OTN %lar# *rocessin( o& +100G Trun8 2oar!,

#rocessin on 4=00G Suc+ as2 T"&(S)% @&F(S) and T&4

&ecommendations !S

 91R/($): /or t.e so!tware #ersion 121C/PG7220 or a later #ersion= t.e >oard returns %6-7$ alar"s i! !orced to trans!er optical signals ! t.e #ersion is

not co"pliant= t.e peer side reports an otu-lo! alar" a!ter recei#ing t.e optical signals !orci>l? trans!erred >? t.e >oard  92R/($): /or t.e so!tware #ersion 213C/PG7230 or a later #ersion= t.e >oard returns an %6-7$ alar" a! ter !orced to trans!er optical signals ! t.e

#ersion is not co"pliant= t.e peer side reports an otu-lo! alar" a!ter recei#ing t.e optical signals !orci>l? trans!erred >? t.e >oard  '.en recei#ing 6-/ signal= 92R1 reports a  alar"  B? de!ault= 7$ o! &uawei trun >oard is ena>led .ere!ore= a downstrea" >oard reports $ ot.er t.an %6-7$ w.en recei#ing a $ alar"

Su##ary 6

Which 0oad1 o5 lon!=di1tance WD" eBui8ment 1u88ot OTN

6

What alam1 will 0e e8oted 07 the 8ee 0oad when a 0oad ecei9e1 an ODU=AIS 1i!nal ？ >@LW+$E&LW+?

6

What ae the dieence1 in OTN alam 8oce11in! o5 a '44G tun2 0oad, in com8ai1on with ecommendation1

6

A and ; ae E@LW+, and C i1 E'T". I5 the o8tical f0e i1 0o2en at A, what alam1 will 0e !eneated on the1e 8oint1 I5 A and ; ae E&LW+, what alam1 will 0e !eneated

 A

 

Introduction to Frame Structure and Alarm Analysis in OTN

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