|
TECHNICAL REPORT
Evolution of Management towards
Autonomic Future Internet (AFI);
Autonomicity and Self-Management in
the Broadband Forum (BBF) Architectures
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2 ETSI TR 103 473 V1.1.2 (2018-12)
Reference
RTR/INT-007_0016-GANA-BBF
Keywords
architecture, autonomic networking
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3 ETSI TR 103 473 V1.1.2 (2018-12)
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, symbols and abbreviations . 10
3.1 Terms . 10
3.2 Symbols . 11
3.3 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
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4 ETSI TR 103 473 V1.1.2 (2018-12)
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
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 V1.1.2 (2018-12)
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
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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 Core Network and Interoperability
Testing (INT).
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 V1.1.2 (2018-12)
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
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7 ETSI TR 103 473 V1.1.2 (2018-12)
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ETSI
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8 ETSI TR 103 473 V1.1.2 (2018-12)
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ETSI
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9 ETSI TR 103 473 V1.1.2 (2018-12)
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...