Otn Framing v1.0 (PDF)

HUAWEI TECHNOLOGIES CO., LTD.

www.huawei.com

Huawei Confidential

Security Level:

47pt

30pt

:

FrutigerNext LT Medium

: Arial

47pt

28pt

2014/8/12

OTN Framing

HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential

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OTN Interface Structure

Mapping & Multiplexing

Frame Structure &Overhead



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ODUk

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The optical transport module-n (OTM-n) is the information structure used to support OTN interfaces.

OTN Interface Structure: Basic Structure

OPUk

OTUkV

OTUk

OTUkV

OTUk

OCh

OCh

OMSn

OTSn

OPSn

Client signal

Full functionality

(OTM-n.m )

Reduced functionality

(OTM-0.m ,OTM-nr,m)

Two OTM-n structures are defined

OTM interfaces

with full

functionality

OTM interfaces

with reduced

functionality


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OTN Interface Structure: Full Functionality Client signal

OPUk payload OPUk OH

OPUk

ODUk TCM OH

OTUk[V] OH OTUk[V] FEC

OCCp OCCp OCCp OCCp OCCp

OMSn payload

OTSn payload

ODUk PM OH

Full functionality

OCh OH

OC

Co

OC

Co

OC

Co

OC

Co

OMSn OH

OTSn OH

ODUkP

ODUkT

Och payload

OPUk

ODUk path

ODUk tandem connection

OTUk [V] section

OCh

OCG-n.m

OMU-n.m

OTM-n.m

(OTM-n.m )

OTN Interface Structure: Full Functionality

Full functionality

Client signal


OPUk

ODUk TCM OH

OTUk[V] OH OTUk[V]

FEC


OMSn payload

OTSn payload

ODUk PM OH

OCh OH

OC

Co

OC

Co

OMSn OH

OTSn OH

ODUkP

ODUkT

Och payload

Client signal


OPUk

ODUk TCM OH

OTUk[V] OH OTUk[V]

FEC


OMSn payload

OTSn payload

ODUk PM OH

OCh OH

OC

Co

OC

Co

OC

Co

OC

Co

OMSn OH

OTSn OH

OTM

CO

MM

S

ODUkP

ODUkT

Och payload

OPUk

ODUk path


OTUk [V] section

OCh

OCG-n.m

OMU-n.m

OTM-n.m

(OTM-n.m )

oos


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OTN Interface Structure: Reduced Functionality Reduced functionality

Och payload OChr

OTM-0.m

(OTM-0.m )

OPS0

Client signal


OPUk

ODUk TCM OH


ODUk PM OH

ODUkP

ODUkT

OPUk

ODUk path


OTUk [V] section

Its the same

as OTM-n.m

Just one Och.

No OOS.


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OTN Interface Structure: Reduced Functionality

Client signal


OPUk

ODUk TCM OH


ODUk PM OH

ODUkP

ODUkT

OPUk

ODUk path


OTUk [V] section

Its the same

as OTM-n.m

No OSS


OPSn

Och payload OCh

OCG-nr.m

OTM-nr.m

Reduced functionality

(OTM-nr.m )


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Frame Structure &Overhead



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Mapping & Multiplexing: OTUk -> OTM

OChr OCCr

OCG-nr.m

OTM-nr.m

Client

signal

x 1 x 1

OOS

Mapping&

multiplexing

(Client > OTUk)

OTU4[V]

OTU3[V]

OTU2[V]

OTU1[V]

OTM-0.m

OCG-n.m

OTM-n.m

OChr OCCr x 1 x 1

OChr OCCr x 1 x 1

OChr OCCr x 1 x 1 x k

OCh OCC x 1 x 1

OCh OCC x 1

x 1

OCh OCC x 1 x 1

OCh OCC x 1 x 1

OSC

x j

x k

x j

x i

x i

x l

x l

1i+j+k+l n

1i+j+k+l n

Following pages will

provide more details

1


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Mapping & Multiplexing: Client->OTU1[v]

Client

signal OPU0(L) ODU0(L)

OPU1(L) ODU1(L)

OPU1(H) ODU1(H) ODTU01 ODTUG1 x 2

OTU1[V] OCh

Client

signal

x 1 x 1 x 1 x 1 x 1


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OPU0(L) ODU0(L)

OPU2(L) ODU2(L)

OPU2(H) ODU2(H)

ODTU12

ODTUG2

x 4

OTU2[V] OCh

Client

signal

x 1 x 1 x 1 x 1 x 1 x 1

OPUflex

(L)

ODUflex

(L)

x 1 x 1

OPU1(L) ODU1(L) x 1 x 1

ODTU2.1

ODTU2.ts

Client

signal

Client

signal

Client

signal

x 8

x 8/ts

x 1 x 1


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OPU2(L) ODU2(L)

OPU3(L) ODU3(L)

OPU3(H) ODU3(H)

ODTU13

ODTUG3

x 16

OTU3[V] OCh

Client

signal

x 1 x 1 x 1 x 1 x 1

OPUflex (L) ODUflex(L)

x 1 x 1


ODTU23

ODTU3.ts

Client

signal

Client

signal

Client

signal

x 4

x 32/ts

x 1 x 1

Client

signal OPU0 (L) ODU0(L) ODTU3.1 x 32

Client

signal OPU2e (L) ODU2e(L) ODTU3.9 x 3

x 1 x 1

x 1 x 1


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OPU2(L) ODU2(L)

OPU4(L) ODU4(L)

OPU4(H) ODU4(H)

ODTU4.31

ODTUG4

x 2

OTU4[V] OCh

Client

signal

x 1 x 1 x 1 x 1 x 1

OPUflex (L) ODUflex(L)

x 1 x 1


ODTU4.8

ODTU4.ts

Client

signal

Client

signal

Client

signal

x 10

x 80/ts

x 1 x 1

Client


Client


x 1 x 1

x 1 x 1

OPU2e(L) ODU2e(L) x 1 x 1

ODTU4.8 Client

signal

x 10


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Frame Structure & Overhead Frame Structure & Overhead


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Optical-Layer Overheads

OTSn

TTI

BDI-O

BDI-P

PMI

TTI: Trail trace identifier

BDI-O: Backward defect indication overhead

BDI-P: Backward defect indication payload

PMI: Payload missing indication

OCI: Open connection indication

FDI-O: Frontward defection indication overhead

FDI-P: Frontward defection indication payload

OMSn

FDI-P

BDI-O

BDI-P

PMI

FDI-O

OCh n

FDI-P

FDI-O

OCI

OCh 3

FDI-P

FDI-O

OCI

OCh 2

FDI-P

FDI-O

OCI

OCh 1

FDI-P

FDI-O

OCI


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Electrical-Layer Overhead

OPUk

OH

FA OTUk[V] OH

ODUk OH

OPUk payload

OTUk FEC (4 x 256 bytes)

FAS

SM

GCC0

FAS

RES

JC

MFAS

ODUk OH

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

TCM

ACT

TCM6

TCM5

TCM4

FTFL

RES

JC

TCM3

TCM2

TCM1

PM

EXP

RES

JC

GCC1

GCC2

APS/PICC

RES

PSI

NJO

PJO

1

2

3

4

1

2

3

4

1 7 8 14 15 16 17 3824 3825 4080


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Electrical-Layer Overhead

FAS

GCC0

FAS

RES

JC

MFAS

ODUk OH

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

TCM

ACT

TCM6

TCM5

FTFL

RES

JC

EXP

RES

JC

GCC1

GCC2

APS/PICC

RES

PSI

NJO

PJO

1

2

3

4

TTI BIP-8

1 2 3

BEI/BIAE

BDI

IAE

RES

1 2 3 4 5 6 7 8 SAPI

DAPI

Operator

specific

0

15 16

31 32

63

SM

TTI BIP-8

1 2 3

SAPI

DAPI

Operator

specific

0

15 16

31 32

63

PM & TCMi(i=1,26)

BEI

BDI

STAT

1 2 3 4 5 6 7 8

PM

BEI/BIAE

BDI

STAT

1 2 3 4 5 6 7 8

TCMi

TCM4

TCM3

TCM2

TCM1

PM

SM

Thank you www.huawei.com

Documents

Otn Framing v1.0 (PDF)