Network Technologies (NTECH); Autonomic network engineering for the self-managing Future Internet (AFI); Autonomicity and Self-Management in the Broadband Forum (BBF) Architectures

DTR/NTECH-AFI-0016-GANA-BBF

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Published
Publication Date
18-Nov-2018
Current Stage
12 - Completion
Due Date
19-Nov-2018
Completion Date
19-Nov-2018
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ETSI TR 103 473 V1.1.1 (2018-11) - Network Technologies (NTECH); Autonomic network engineering for the self-managing Future Internet (AFI); Autonomicity and Self-Management in the Broadband Forum (BBF) Architectures
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ETSI TR 103 473 V1.1.1 (2018-11)






TECHNICAL REPORT
Network Technologies (NTECH);
Autonomic network engineering for
the self-managing Future Internet (AFI);
Autonomicity and Self-Management in
the Broadband Forum (BBF) Architectures

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2 ETSI TR 103 473 V1.1.1 (2018-11)



Reference
DTR/NTECH-AFI-0016-GANA-BBF
Keywords
architecture, autonomic networking
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3 ETSI TR 103 473 V1.1.1 (2018-11)
Contents
Intellectual Property Rights . 5
Foreword . 5
Modal verbs terminology . 5
1 Scope . 6
2 References . 6
2.1 Normative references . 6
2.2 Informative references . 6
3 Definition of terms and abbreviations . 10
3.1 Terms . 10
3.2 Abbreviations . 11
4 Background and Introduction to the ETSI GANA Reference Model . 13
4.1 Background . 13
4.2 ETSI GANA Reference Model in Brief . 14
4.3 Characterization of the GANA Knowledge Plane . 16
5 Instantiation of the GANA model onto the BBF reference network and management & control
architectures . 19
5.1 BBF Reference architectures considered . 19
6 Instantiation of GANA model concepts onto BBF architecture key functional entities . 20
6.1 General considerations derived from BBF Specifications for introducing autonomics in BBF
architectures . 20
6.1.1 Requirements for autonomic features in BBF functional entities . 20
6.2 GANA instantiation onto BBF architectures . 22
6.2.1 Instantiation (Mapping) of GANA DEs onto BBF key architecture Network Elements (NEs) . 22
6.2.2 Enabling Autonomic behaviour of the CPE (Autonomic CPE) . 23
6.2.3 Enabling the BNG to exhibit au+tonomic behaviours (Autonomic BNG) . 25
6.2.4 Enabling the AN to exhibit autonomic behaviours (Autonomic AN) . 25
6.2.5 Use Cases for illustrating the value of autonomic features in BBF network elements . 27
6.2.5.1 Use Case 1 (CPE): QoS interworking between fixed and 3GPP networks, marking of tunnels
based on user-specific policy, network policy and QoS setting . 27
6.2.5.2 Use Case 2 (BNG): BNG termination of PPPoE. 27
6.2.5.3 Use Case 3 (AN): Configuration of the xDSL ports . 28
6.2.5.4 Use Case 4 (AN): Buffer configuration . 28
6.2.6 The role of Monitoring DEs in enabling dissemination of monitoring data to the DEs within NE and
DEs in the Knowledge Plane . 28
7 GANA instantiation onto the virtualized BBF architecture with SDN . 31
7.1 Background . 31
7.2 GANA instantiation onto the BBF and ETSI-NFV reference model for infrastructure interworking . 33
7.2.1 Combining BBF and ETSI NFV architectures . 33
7.2.2 BBF Managed Entities (MEs) . 35
7.2.3 NFV Managed Entities (MEs) . 36
7.2.3.1 Overview of the Mapping of GANA model to ETSI NFV MANO . 36
7.2.3.2 Overview of the Mapping of GANA model to ETSI NFV MANO: GANA Autonomics at NFV-

O level and at VIM Level . 38
7.2.4 GANA Autonomics (Autonomic Management and Control) in the BBF CloudCO Architeture . 39
7.2.4.1 GANA Autonomics in CloudCO Environment in context of end to end service orchestration . 39
7.2.4.2 GANA Autonomics in CloudCO reference architecture . 40
7.2.4.3 GANA Mappings with the Broadband Access Abstraction (BAA) layer . 42
7.2.4.4 GANA Mappings with the Broadband Access Abstraction (BAA) layer within the CloudCO

architecture . 43
7.3 GANA instantiation onto Network Enhanced Residential Gateway . 43
7.4 GANA instantiation onto other Software-Defined Access Network (SDAN) Scenarios that may be
applicable if BBF standards already support or would support the Scenarios . 47
ETSI

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4 ETSI TR 103 473 V1.1.1 (2018-11)
7.4.1 Towards Autonomic SDAN . 47
7.4.2 Towards an Autonomic SDAN Network Element: GANA DEs and MEs Mappings and
Characterizations thereof . 48
7.4.3 A General Characterization of the GANA Knowledge Plane instantiated for SDAN . 53
8 E2E Value of Federated Autonomics across Multiple BBF Network Segments . 56
8.1 Introduction on Use Cases for E2E Business value of Autonomics/AMC . 56
8.2 Recommendations on how Autonomics Implementers can use the GANA instantiation for the BBF
architectures to implement the Use Case(s). 57
8.3 E2E realization through the instantiation of the GANA into the NFV-based BBF . 61
9 Interworking and coordination between GANA-BBF and GANA-3GPP (Core Network) in terms
of autonomic functions in the two domains . 62
9.1 Introduction . 62
9.2 Overview of BBF-3GPP interworking and reference architecture . 62
9.3 Introducing autonomics into interworking BBF and 3GPP segments and identification of potential
interactions . 64
9.3.1 Overview . 64
9.3.2 Recommended interactions for End-to-End QoS . 65
9.3.3 Recommendations for autonomic interworking between BBF and 3GPP segments through
exemplary use cases . 66
9.3.3.1 Application continuity between segments . 66
9.3.3.2 Dual WAN connectivity . 68
9.3.4 Interworking among virtualized BBF and 3GPP segments . 69
10 Conclusions and Future work . 70
Annex A: The ONIX System and possible ways to implement ONIX . 71
A.1 Possible Approach to Implementing ONIX and its protocols for ONIX Services . 71
Annex B: A GANA Instantiation onto other SDAN Scenarios, but can only be applied if such
SDAN scenarios are permissible by BBF standards (e.g. TR-384, TR-370, etc.) . 75
Annex C: Bibliography . 79
Annex D: Change History . 80
History . 81


ETSI

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5 ETSI TR 103 473 V1.1.1 (2018-11)
Intellectual Property Rights
Essential patents
IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
server (https://ipr.etsi.org/).
Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web
server) which are, or may be, or may become, essential to the present document.
Trademarks
The present document may include trademarks and/or tradenames which are asserted and/or registered by their owners.
ETSI claims no ownership of these except for any which are indicated as being the property of ETSI, and conveys no
right to use or reproduce any trademark and/or tradename. Mention of those trademarks in the present document does
not constitute an endorsement by ETSI of products, services or organizations associated with those trademarks.
Foreword
This Technical Report (TR) has been produced by ETSI Technical Committee Network Technologies (NTECH).
Modal verbs terminology
In the present document "should", "should not", "may", "need not", "will", "will not", "can" and "cannot" are to be
interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of provisions).
"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.

ETSI

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6 ETSI TR 103 473 V1.1.1 (2018-11)
1 Scope
The present document aims at providing recommendations for the introduction of autonomics (management and control
intelligence) into the fixed broadband access and aggregation networks specified in the Broadband Forum (BBF)
Architecture specifications. To this effect, it covers the instantiation of the reference model for Autonomic Networking,
Cognition and Self-Management, called GANA (Generic Autonomic Networking Architecture) [i.1], starting from the
reference architecture defined in BBF TR 101 [i.6], and considering also BBF TR 178 [i.7] and BBF TR 317 [i.28]
reports. It superimposes GANA Decision Elements (DEs) into nodes/devices and the overall BBF network architecture,
so that the DEs and their associated control-loops can be further designed to perform autonomic management and
control of the specific resources (Managed Entities) in the target architecture.
Based on this, the present document identifies the requirements for autonomic behaviours (Autonomics Functions/DEs)
across the fixed broadband access and aggregation network segments of the BBF reference architecture and provides
recommendations on where and how the GANA Functional Blocks (including DEs) should be instantiated. It further
extends these recommendations to the virtualized manifestation of these segments considering their virtualized
evolution in conjunction with SDN and NFV technologies. Finally, it also provides recommendations on the
interworking and coordination between autonomic functions among GANA-BBF and GANA-3GPP (Core Network)
domains, as well as recommendations on the Interworking and coordination between virtualized GANA-BBF and
virtualized GANA-3GPP (Core Network) domains.
2 References
2.1 Normative references
Normative references are not applicable in the present document.
2.2 Informative references
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
referenced document (including any amendments) applies.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long term validity.
The following referenced documents are not necessary for the application of the present document but they assist the
user with regard to a particular subject area.
[i.1] ETSI White Paper No 16: "GANA - Generic Autonomic Networking Architecture - Reference
Model for Autonomic Networking, Cognitive Networking and Self-Management of Networks and
Services".
NOTE: Available at http://www.etsi.org/images/files/ETSIWhitePapers/etsi_wp16_gana_Ed1_20161011.pdf.
[i.2] ETSI GS AFI 002: "Autonomic network engineering for the self-managing Future Internet (AFI);
Generic Autonomic Network Architecture (An Architectural Reference Model for Autonomic
Networking, Cognitive Networking and Self-Management)".
NOTE: This GS is now undergoing a transformation to an ETSI TS 103 195-2 [i.30] that has been published by
ETSI in 2018:
http://www.etsi.org/deliver/etsi_ts/103100_103199/10319502/01.01.01_60/ts_10319502v010101p.pdf.
[i.3] Ranganai Chaparadza, Tayeb Ben Meriem, John Strassner, Steven Wright and Joel Halpern:
"Industry Harmonisation for Unified Standards on Autonomic Management & Control of
Networks and Services, SDN, NFV, E2E Orchestration, and Software-oriented enablers for 5G",
Report from the Joint SDOs/Fora Workshop hosted by TMForum during TMForum Live 2015
th
Event Nice, France (June 4 , 2015).
NOTE: Available at https://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=7063423
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7 ETSI TR 103 473 V1.1.1 (2018-11)
[i.4] ETSI TS 103 194: "Network Technologies (NTECH); Autonomic network engineering for the
self-managing Future Internet (AFI); Scenarios, Use Cases and Requirements for
Autonomic/Self-Managing Future Internet".
[i.5] ETSI TR 103 404 (V1.1.1): "Network Technologies (NTECH); Autonomic network engineering
for the self-managing Future Internet (AFI); Autonomicity and Self-Management in the Backhaul
and Core network parts of the 3GPP Architecture".
[i.6] BBF TR 101: "Migration to Ethernet-Based Broadband Aggregation", Issue: 2, Issue Date:
July 2011.
[i.7] BBF TR 178: "Multi-service Broadband Network Architecture and Nodal Requirements", Issue: 1,
Issue Date: September 2014.
[i.8] BBF TR 359: "A Framework for Virtualization", Issue: 1, Issue Date: October 2016.
[i.9] BBF TR 134: "Broadband Policy Control Framework", Issue: 1, Issue Date: July 2012.
[i.10] Chaparadza R., Wodczak M., Ben Meriem T., De Lutiis P., Tcholtchev N., Ciavaglia, L. (2013):
"Standardization of resilience & survivability, and autonomic fault-management, in evolving and
th
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[i.14] Wendong Wang, Ye Tian, Xiangyang Gong, Qinglei Qi, Yannan Hu: "Software defined
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[i.18] Anastasios Zafeiropoulos, Athanassios Liakopoulos, Alan Davy, Ranganai Chaparadza:
"Monitoring within an Autonomic Network: A GANA Based Network Monitoring Framework:
Service-Oriented Computing", ICSOC/ServiceWave 2009 Workshops: Volume 6275 of the series
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[i.19] Sandra Scott, Sriram Natarajan and Sakir Sezer: "A Survey of Security in Software Defined
Networks", In IEEE Communications Surveys & Tutorials: DOI: 10.1109/COMST.2015.2453114.
[i.20] Software Defined Access Networking (SDAN): "Taking NFV and SDN to the "Edge", White
TM
Paper by ASSIA .
ETSI

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8 ETSI TR 103 473 V1.1.1 (2018-11)
[i.21] Heavy Reading & SaS White Paper: "Advanced Predictive Analytics: Optimize your Network &
Transform Customer Experience".
[i.22] Mestres Albert, Alberto Rodriguez-Natal, Josep Carner, Pere Barlet-Ros, Eduard Alarcón, Marc
Solé, Victor Muntés et al.: "Knowledge-Defined Networking", arXiv preprint arXiv:1606.06222
(2016).
[i.23] Ren Quinn et al.: "KnowNet: Towards a knowledge plane for enterprise network management": In
proceedings of NOMS 2016 - 2016 IEEE/IFIP Network Operations and Management Symposium:
10.1109/NOMS.2016.7502819.
[i.24] Bruno Cornaglia, Vodafone Group Services: "Fixed Access Network Virtualization", Broadband
th
Forum Contribution bbf2014.084.00, February 14 , 2014.
[i.25] Cornaglia Bruno, Young Gavin and Marchetta Antonio: "Fixed Access Network Sharing",
Elsevier publication: 10.1016/j.yofte.2015.07.008.
[i.26] BBF TR-370: "Fixed Access Network Sharing - Architecture and Nodal Requirements", Issue: 1,
Issue Date: November 2017.
[i.27] Appledore Research Group White Paper: "Closed Loop Automation and the new role of
Assurance": 9/1/2016.
[i.28] BBF TR 317: "Network Enhanced Residential Gateway", Issue 1, Issue Date: July 2016.
[i.29] NTECH-AFI TR Draft: "Network Technologies (NTECH); Autonomic network engineering for
the self-managing Future Internet (AFI); Impact of Generic Autonomic Network Architecture
(GANA) on other paradigms: NFV and SDN How GANA integrates with SDN, NFV, E2E
Service Orchestration and Big-Data Analytics for Autonomics".
[i.30] ETSI TS 103 195-2 (V1.1.1): "Autonomic network engineering for the self-managing Future
Internet (AFI); Generic Autonomic Network Architecture; Part 2: An Architectural Reference
Model for Autonomic Networking, Cognitive Networking and Self-Management".
NOTE: Available at:
http://www.etsi.org/deliver/etsi_ts/103100_103199/10319502/01.01.01_60/ts_10319502v010101p.pdf.
[i.31] Alexej Starschenko, Nikolay Tcholtchev, Arun Prakash, Ina Schieferdecker and Ranganai
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th
7 International Congress on Ultra Modern Telecommunications and Control Systems and
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[i.32] gRPC protocol.
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and Extended IPv6 (IPv6++) Features That Enable Autonomic Network Setup and Operation".
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Autonomic/self-managing Networks and Behaviors required in Future Networks",
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Management. ICST ACCESSNETS'10, Budapest, Hungary, November 2010.
[i.36] BBF TR 203: "Interworking between Next Generation Fixed and 3GPP Wireless Access", Issue: 1,
Issue Date: August 2012.
ETSI

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9 ETSI TR 103 473 V1.1.1 (2018-11)
[i.37] ETSI TS 123 139 (V14.0.0): "Digital cellular telecommunications system (Phase 2+) (GSM);
Universal Mobile Telecommunications System (UMTS); LTE; 3GPP system - fixed broadband
access network interworking; Stage 2 (3GPP TS 23.139 version 14.0.0 Release 14)".
[i.38] ETSI TS 123 401: "LTE; General Packet Radio Service (GPRS) enhancements for Evolved
Universal Terrestrial Radio Access Network (E-UTRAN) access (3GPP TS 23.401)".
[i.39] ETSI TS 123 402: "Universal Mobile Telecommunications System (UMTS); LTE; Architecture
enhancements for non-3GPP accesses (3GPP TS 23.402)".
[i.40] ETSI TS 123 261 (V10.1.0): "Universal Mobile Telecommunications System (UMTS); LTE; IP
flow mobility and seamless Wireless Local Area Network (WLAN) offload; Stage 2
(3GPP TS 23.261 version 10.1.0 Release 10)".
[i.41] ETSI TS 122 278 (V12.6.0): "Universal Mobile Telecommunications System (UMTS); LTE;
Service requirements for the Evolved Packet System (EPS) (3GPP TS 22.278 version 12.6.0
Release 12)".
[i.42] BBF TR-304: "Broadband Access Service Attributes and Performance Metrics", Issue: 1, Issue
Date: February 2015.
[i.43] F. Leitão, R. David Carnero Ros and J. Rius i Riu: "Fixed-mobile convergence towards the 5G era:
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[i.47] BBF TR 058: "Multi-Service Architecture & Framework Requirements".
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[i.48] BBF TR 145: "Multi-service Broadband Network Functional Modules and Architecture".
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[i.49] BBF TR 144: "Broadband Multi-Service Architecture & Framework Requirements".
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TM
[i.50] ANSI/IEEE 802.1ad -2005: "IEEE Standard for Local and Metropolitan Area Networks --Virtual
Bridged Local Area Networks -- Amendment 4: Provider Bridges".
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[i.51] Void.
TM
[i.52] IEEE 802.1X -2010: "IEEE Standard for Local and metropolitan area networks -- Port-Based
Network Access Control".
[i.53] BBF TR-384: "Cloud Central Office Reference Architectural Framework".
[i.54] R. Chaparadza, Tayeb Ben Meriem, Benoit Radier, Szymon Szott, Michal Wod
...

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