ITU-T Rec. G.798 Amendment 3

240 Pages·2017·11.48 MB·English

s

I n t e r n a t i o n a l T e l e c o m m u n i c a t i o n U n i o n

ITU-T
G.798

Amendment 3
TELECOMMUNICATION
STANDARDIZATION SECTOR
(01/2017)
OF ITU

SERIES G: TRANSMISSION SYSTEMS AND MEDIA,
DIGITAL SYSTEMS AND NETWORKS
Digital terminal equipments – Other terminal equipment

Characteristics of optical transport network hierarchy
equipment functional blocks
Amendment 3

Recommendation ITU-T G.798 (2012) – Amendment 3
ITU-T G-SERIES RECOMMENDATIONS
TRANSMISSION SYSTEMS AND MEDIA, DIGITAL SYSTEMS AND NETWORKS

INTERNATIONAL TELEPHONE CONNECTIONS AND CIRCUITS G.100–G.199
GENERAL CHARACTERISTICS COMMON TO ALL ANALOGUE CARRIER- G.200–G.299
TRANSMISSION SYSTEMS
INDIVIDUAL CHARACTERISTICS OF INTERNATIONAL CARRIER TELEPHONE G.300–G.399
SYSTEMS ON METALLIC LINES
GENERAL CHARACTERISTICS OF INTERNATIONAL CARRIER TELEPHONE SYSTEMS G.400–G.449
ON RADIO-RELAY OR SATELLITE LINKS AND INTERCONNECTION WITH METALLIC
LINES
COORDINATION OF RADIOTELEPHONY AND LINE TELEPHONY G.450–G.499
TRANSMISSION MEDIA AND OPTICAL SYSTEMS CHARACTERISTICS G.600–G.699
DIGITAL TERMINAL EQUIPMENTS G.700–G.799
General G.700–G.709
Coding of voice and audio signals G.710–G.729
Principal characteristics of primary multiplex equipment G.730–G.739
Principal characteristics of second order multiplex equipment G.740–G.749
Principal characteristics of higher order multiplex equipment G.750–G.759
Principal characteristics of transcoder and digital multiplication equipment G.760–G.769
Operations, administration and maintenance features of transmission equipment G.770–G.779
Principal characteristics of multiplexing equipment for the synchronous digital hierarchy G.780–G.789
Other terminal equipment G.790–G.799
DIGITAL NETWORKS G.800–G.899
DIGITAL SECTIONS AND DIGITAL LINE SYSTEM G.900–G.999
MULTIMEDIA QUALITY OF SERVICE AND PERFORMANCE – GENERIC AND USER- G.1000–G.1999
RELATED ASPECTS
TRANSMISSION MEDIA CHARACTERISTICS G.6000–G.6999
DATA OVER TRANSPORT – GENERIC ASPECTS G.7000–G.7999
PACKET OVER TRANSPORT ASPECTS G.8000–G.8999
ACCESS NETWORKS G.9000–G.9999

For further details, please refer to the list of ITU-T Recommendations.
Recommendation ITU-T G.798
Characteristics of optical transport network hierarchy
equipment functional blocks
Amendment 3

Summary
Amendment 3 to Recommendation ITU-T G.798 (2012):
– adds Beyond 100 Gbit/s equipment functions and processes
– includes the specification of OTUCn and ODUCn functions by generalizes OTUk and ODUk
functions to OTU and ODU
– adds ODUflex to FlexE client and subgroup adaptation functions
– adds FlexO functions and processes
– deletes the ODU virtual concatenation functions
– deletes the ODUkP to ATM adaptation functions
– removes the processes related to the TCM ACT and FTFL overhead fields
History
Edition Recommendation Approval Study Group Unique ID*
1.0 ITU-T G.798 2002-01-06 15 11.1002/1000/5604
1.1 ITU-T G.798 (2002) Amd. 1 2002-06-13 15 11.1002/1000/6057
2.0 ITU-T G.798 2004-06-13 15 11.1002/1000/7329
3.0 ITU-T G.798 2006-12-14 15 11.1002/1000/8983
3.1 ITU-T G.798 (2006) Amd. 1 2008-12-12 15 11.1002/1000/9669
3.2 ITU-T G.798 (2006) Cor.1 2009-01-13 15 11.1002/1000/9647
4.0 ITU-T G.798 2010-10-22 15 11.1002/1000/10877
4.1 ITU-T G.798 (2010) Cor. 1 2011-04-13 15 11.1002/1000/11117
4.2 ITU-T G.798 (2010) Amd. 1 2011-07-22 15 11.1002/1000/11116
4.3 ITU-T G.798 (2010) Cor. 2 2012-02-13 15 11.1002/1000/11488
4.4 ITU-T G.798 (2010) Amd. 2 2012-04-06 15 11.1002/1000/11487
5.0 ITU-T G.798 2012-12-22 15 11.1002/1000/11778
5.1 ITU-T G.798 (2012) Amd. 1 2014-05-14 15 11.1002/1000/12179
5.2 ITU-T G.798 (2012) Amd. 2 2015-01-13 15 11.1002/1000/12367
5.3 ITU-T G.798 (2012) Cor.1 2015-08-13 15 11.1002/1000/12529
5.4 ITU-T G.798 (2012) Amd. 3 2017-01-12 15 11.1002/1000/13081

* To access the Recommendation, type the URL http://handle.itu.int/ in the address field of your web
browser, followed by the Recommendation's unique ID. For example, http://handle.itu.int/11.1002/1000/11
830-en.
Rec. ITU-T G.798 (2012)/Amd.3 (01/2017) i
FOREWORD
The International Telecommunication Union (ITU) is the United Nations specialized agency in the field of
telecommunications, information and communication technologies (ICTs). The ITU Telecommunication
Standardization Sector (ITU-T) is a permanent organ of ITU. ITU-T is responsible for studying technical,
operating and tariff questions and issuing Recommendations on them with a view to standardizing
telecommunications on a worldwide basis.
The World Telecommunication Standardization Assembly (WTSA), which meets every four years, establishes
the topics for study by the ITU-T study groups which, in turn, produce Recommendations on these topics.
The approval of ITU-T Recommendations is covered by the procedure laid down in WTSA Resolution 1.
In some areas of information technology which fall within ITU-T's purview, the necessary standards are
prepared on a collaborative basis with ISO and IEC.

NOTE
In this Recommendation, the expression "Administration" is used for conciseness to indicate both a
telecommunication administration and a recognized operating agency.
Compliance with this Recommendation is voluntary. However, the Recommendation may contain certain
mandatory provisions (to ensure, e.g., interoperability or applicability) and compliance with the
Recommendation is achieved when all of these mandatory provisions are met. The words "shall" or some other
obligatory language such as "must" and the negative equivalents are used to express requirements. The use of
such words does not suggest that compliance with the Recommendation is required of any party.

INTELLECTUAL PROPERTY RIGHTS
ITU draws attention to the possibility that the practice or implementation of this Recommendation may involve
the use of a claimed Intellectual Property Right. ITU takes no position concerning the evidence, validity or
applicability of claimed Intellectual Property Rights, whether asserted by ITU members or others outside of
the Recommendation development process.
As of the date of approval of this Recommendation, ITU had received notice of intellectual property, protected
by patents, which may be required to implement this Recommendation. However, implementers are cautioned
that this may not represent the latest information and are therefore strongly urged to consult the TSB patent
database at http://www.itu.int/ITU-T/ipr/.

 ITU 2017
All rights reserved. No part of this publication may be reproduced, by any means whatsoever, without the prior
written permission of ITU.

ii Rec. ITU-T G.798 (2012)/Amd.3 (01/2017)
Table of Contents
Page
1) Scope ............................................................................................................................. 1
2) Modifications to clause 1 .............................................................................................. 1
3) Modifications to clause 2 .............................................................................................. 3
4) Modifications to clause 3 .............................................................................................. 3
5) Modifications to clause 4 .............................................................................................. 6
6) Modifications to clause 5 .............................................................................................. 7
7) Modifications to clause 6 .............................................................................................. 8
8) Modifications to clause 8 .............................................................................................. 13
9) Modifications to clause 13 ............................................................................................ 17
10) Modifications to clause 14 ............................................................................................ 45
11) New clause 15 ............................................................................................................... 215
12) New Annex B ............................................................................................................... 229

Rec. ITU-T G.798 (2012)/Amd.3 (01/2017) iii

Recommendation ITU-T G.798
Characteristics of optical transport network hierarchy
equipment functional blocks

Amendement 3
1) Scope
This amendment contains text modifications and additions extending the set of atomic functions in
ITU-T G.798 to support Beyond 100 Gbit/s OTN, FlexO, FlexE client and subgroup signals. It deletes
the ODU virtual concatenation and ODUkP to ATM adaptation functions as well as the processing
of the TCM ACT and FTFL overhead fields.
2) Modifications to clause 1
Replace Figure 1-3 with the following:

Rec. ITU-T G.798 (2012)/Amd.3 (01/2017) 1
FC-1200_CP EthPP-OS_CP MT_CP SCC_CPETH_FP ETH_TFP ETH_TFP ETH_FPSCC_CP MT_CP EthPP-OS_CP FC-1200_CP
ODU2eP/ ODU2P/ ODUkP[-h]/ ODUkP[-h]/ ODUkP[-h]/ ODUkP[-h]/ ODU2P/ ODU2eP/
FC-1200 EthPP-OS MT ETH ETH MT EthPP-OS FC-1200
RSn_CP CBRx_CP CBRx_CP CBRx_CP CBRx_CP CBRx_CP CBRx_CP RSn_CP
ODUkP/ ODU0P/ ODUkP-g/ ODUkP/ ODUkP/ ODUkP-g/ ODU0P/ ODUkP/
RSn CBRx CBRx CBRx CBRx CBRx CBRx RSn
ODUk_CP ODUk_CP ODUk_CP ODUk_CP
ODUkP[-h]/ ODUkP/ ODUkP/ ODUkP[-h]/
ODUj-21 ODU[i]j ODU[i]j ODUj-21
COMMS_CP COMMS_CP
ODUkP/ ODUkP/ ODUkP/ ODUkP/ ODUkP/ ODUkP/
PRBS NULL COMMS COMMS NULL PRBS
ODUkP_AP
ODUkT ODUkTm ODUkP ODUkP_RP ODUkP ODUkP ODUkP
non-intrusive non-intrusive
monitor monitor
ODUkT/ ODUk_TCP ODUkT/
C ODUk ODUk_CP ODUk C
M M
C ODUkT_AP ODUkT_AP C
UkT_T ODUkT ODUk ODUkT UkT_T
D D
O ODUkT_RP O
ODUk_CP
OTUk[V]/ OTUk[V]/
ODUk ODUk
OTUk[V]_AP
OTUk[V] OTUk[V]_RP OTUk[V]
OTUk[V]_TCP
OTUk[V]_CP
OCh/ OCh/
OTUk[V] OTUk[V]
OCh_AP OCh_AP
COMMS_CP ODUk_CP ODUk_CP COMMS_CP
ODUCnP/ ODUCnP/ ODUCnP/ ODUCnP/ ODUCnP/ ODUCnP/ ODUCnP/ ODUCnP/
PRBS NULL COMMS ODUk ODUk COMMS NULL PRBS
ODUCnP_AP
ODUCnP ODUCnP_RP ODUCnP
ODUCn_TCP
ODUCnT/ ODUCnT/
MC ODUCn ODUCn MC noOnD-inUtCrunsPive noOnD-inUtCrunsTive
UCnT_TC ODUCnT OODDUUCCnnTT__RAPP ODUCnT UCnT_TC OmDoUnCitonrP ODmUonCintoTrm
D D
O O
ODUCn_TCP
OTUCn/ OTUCn/
ODUCn ODUCn
OTUCn_AP
OTUCn OTUCn_RP OTUCn
NOTE - OTSi[G/A]/OTUCn functions are for further study
OTUCn_TCP
OTUCn_CP
OTSiA/ OTSiG/ OTSi/ OTSi/ OTSiG/ OTSiA/
OTUCn OTUCn OTUCn OTUCn OTUCn OTUCn
OTSiA_AP OTSiG_AP OTSi_AP OTSi_AP OTSiG_AP OTSiA_AP
Figure 1-3 – OTN common atomic functions
2 Rec. ITU-T G.798 (2012)/Amd.3 (01/2017)
3) Modifications to clause 2
Update the following references:
[ITU-T G.664] Recommendation ITU-T G.664 (20122006), Optical safety
procedures and requirements for optical transport systems.
[ITU-T G.694.1] Recommendation ITU-T G.694.1 (20122002), Spectral grids for
WDM applications: DWDM frequency grid.
[ITU-T G.695] Recommendation ITU-T G.695 (20152010), Optical interfaces for
coarse wavelength division multiplexing applications.
[ITU-T G.709] Recommendation ITU-T G.709/Y.1331 (20162012), Interfaces for the
optical transport network.
[ITU-T G.780] Recommendation ITU-T G.780/Y.1351 (2010), Terms and definitions
for synchronous digital hierarchy (SDHSDN) networks.
[ITU-T G.784] Recommendation ITU-T G.784 (20081999), Synchronous digital
hierarchy (SDH) management.
[ITU-T G.806] Recommendation ITU-T G.806 (20122009), Characteristics of
transport equipment – Description methodology and generic
functionality.
[ITU-T G.808.1] Recommendation ITU-T G.808.1 (20142010), Generic protection
switching – Linear trail and subnetwork protection.
[ITU-T G.872] Recommendation ITU-T G.872 (20162001), Architecture of optical
transport networks.
[ITU-T G.873.1] Recommendation ITU-T G.873.1 (20142006), Optical transport
network (OTN): Linear protection.
[ITU-T G.873.2] Recommendation ITU-T G.873.2 (2015), ODUk shared ring
protection.
[ITU-T G.874] Recommendation ITU-T G.874 (20132008), Management aspects of
optical transport network elements.
[ITU-T G.959.1] Recommendation ITU-T G.959.1 (20122009), Optical transport
network physical layer interfaces.
[ITU-T G.7042] Recommendation ITU-T G.7042/Y.1305 (2006), Link capacity
adjustment scheme (LCAS) for virtual concatenated signals.
[ITU-T G.8021] Recommendation ITU-T G.8021/Y.1341 (20152010), Characteristics
of Ethernet transport network equipment functional blocks.
[ITU-T G.8121] Recommendation ITU-T G.8121/Y.1381 (20162013), Characteristics
of MPLS-TP equipment functional blocks.
[ITU-T I.150] Recommendation ITU-T I.150 (1999), B-ISDN asynchronous transfer
mode functional characteristics.
[ITU-T I.321] Recommendation ITU-T I.321 (1991), B-ISDN protocol reference
model and its application.
[ITU-T I.361] Recommendation ITU-T I.361 (1999), B-ISDN ATM layer
specification.
[ITU-T I.371] Recommendation ITU-T I.371 (2004), Traffic control and congestion
control in B-ISDN.
Rec. ITU-T G.798 (2012)/Amd.3 (01/2017) 3
[ITU-T I.432.1] Recommendation ITU-T I.432.1 (1999), B-ISDN user-network
interface – Physical layer specification: General characteristics.
[ITU-T I.610] Recommendation ITU-T I.610 (1999), B-ISDN operation and
maintenance principles and functions.
[ITU-T I.732] Recommendation ITU-T I.732 (2000), Functional characteristics of
ATM equipment.
[IEEE 802.3] IEEE Std. 802.3-20152008, IEEE Standard for EthernetInformation
technology – Telecommunications and information exchange between
systems – Local and metropolitan area networks – Specific
requirements – Part 3: Carrier Sense Multiple Access with Collision
Detection (CSMA/CD) Access Method and Physical Layer
Specifications.
[IEEE 802.3ba] IEEE Std. 802.3ba-2010, IEEE Standard for Information technology –
Telecommunications and information exchange between systems –
Local and metropolitan area networks – Specific requirements –
Part 3: Carrier Sense Multiple Access with Collision Detection
(CSMA/CD) Access Method and Physical Layer Specifications –
Amendment 4: Media Access Control Parameters, Physical Layers,
and Management Parameters for 40 Gb/s and 100 Gb/s Operation.
[ETSI TR 101 290] ETSI TR 101 290 V1.3.1 V1.2.1 (20142001), Digital Video
Broadcasting (DVB); Measurement guidelines for DVB systems.
[OIF FlexE] Optical Internetworking Forum, OIF-FLEXE-01.0 (2016), Flex
Ethernet Implementation Agreement 1.0.
<http://www.oiforum.com/wp-content/uploads/OIF-FLEXE-01.0.pdf>
4) Modifications to clause 3
Replace clause 3 with the following text:
3 Definitions
3.1 Terms defined elsewhere
This Recommendation uses the following terms defined elsewhere:
3.1.1 Terms defined in [ITU-T G.709]:
– completely standardized OTUk (OTUk).
– connection monitoring end point (CMEP)
– functionally standardized OTUk (OTUkV)
– ODUk path (ODUkP)
– ODUk TCM (ODUkT)
– optical channel (OCh)
– optical data unit (ODU)
– optical payload unit (OPU)
– optical transport unit (OTU)
– optical transport network (OTN)
4 Rec. ITU-T G.798 (2012)/Amd.3 (01/2017)