Benchmarking Methodology Working Group LM. Contreras
Internet-Draft J. Rodriguez
Intended status: Experimental L. Luque
Expires: January 9, 2020 Telefonica
July 8, 2019
5G transport network benchmarking
draft-contreras-bmwg-5g-00
Abstract
New 5G services are starting to be deployed in operational networks,
leveraging in a number of novel technologies and architectural
concepts. The purpose of this document is to overview the
implications of 5G services in transport networks and to provide
guidance on bechmarking of the infratructures supporting those
services.
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Conventions used in this document . . . . . . . . . . . . . . 2
3. 5G services . . . . . . . . . . . . . . . . . . . . . . . . . 2
4. Benchmarking aspects of transport networks in 5G . . . . . . 3
5. Guidance on 5G transport benchmarking . . . . . . . . . . . . 4
6. Security Considerations . . . . . . . . . . . . . . . . . . . 4
7. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 4
8. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 4
9. References . . . . . . . . . . . . . . . . . . . . . . . . . 4
9.1. Normative References . . . . . . . . . . . . . . . . . . 4
9.2. Informative References . . . . . . . . . . . . . . . . . 4
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 5
1. Introduction
5G services are starting to be introduced in real operational
networks. The challenges of 5G are multiple, impacting in different
technological areas such as radio access, mobile core and transport
network. From all those technological areas, the transport network
is the focus of this document.
It is important for operators to have a good basis of benchmarking
solutions, technologies and architectures before moving them into
production. With such aim, this document intends to overview
available guidelines to assist on the benchmarking of 5G transport
networks, identifying gaps that could require further work and
details.
As result, it is expected to provide guidance on benchmarking of 5G
transport network infrastructures ready for experimentation in lab
environments or real deployment in operational networks.
2. Conventions used in this document
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
document are to be interpreted as described in RFC2119 [RFC2119].
3. 5G services
5G transport networks will need to accommodate different kind of
services with very distinct needs and requirements leveraging on the
same infrastructure. 5G services can be grouped in three main
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categories, namely enhanced Mobile Broadband (eMBB), ultra-Reliable
and Low Latency Communications (URLLC), and massive Machine Type
Communications (mMTC). Each of them presents different inherent
characteristics spanning from ultra-low latency to high bandwidth and
high reliability. For instance, eMMB services are expected to
provide peak bit rates of up to 1 Gbps, uRRLC services will require
latencies as lower as below microsecond delays, and mMTC will demand
to support up to 100 times the number of current sessions. All these
features impose great constraints to the networks deployed today in
backhaul and aggregation, in terms of not only network capacity but
also in terms of data processing, especially for guaranteeing very
low latencies.
The impact in the transport network of those challenges is increased
by some other additional challenges introduced by the emergence of
two new technological paradigms: the network virtualization and the
network programmability.
In one hand, virtualization will introduce uncertainty on the traffic
patterns due to the flexibility and scalability in the deployment
traffic sources in the transport network. On the other hand,
programmability will potentially enable automated reconfiguration of
the transport network which requires coordination mechanisms to avoid
misconfigurations.
A final consideration is the introduction of the network slicing
concept in 5G networks. According to that, the objective is to
provide customized and tailored logical networks to different
customers, allocating resources for the specific customer service
request.
4. Benchmarking aspects of transport networks in 5G
The benchmarking aspects of 5G transport networks can be then
structured in the following manner:
Data plane benchmarking: aspects to consider in data plane
benchmarking refer to both hardware capabilities as well as to
transport encapsulations. Examples of hardware capabilities are
recent developments such as IEEE TSN, and example of encapsulation
is SRv6 [I-D.ietf-spring-srv6-network-programming].
Control plane benchmarking: aspects to consider for control plane
relates to transport infrastructure programmability. In this case
some previous works exists such as RFC8456 [RFC8456].
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Management plane benchmarking: one specific aspect of management
benchmarking in 5G refers to the capability of managing the
transport network slice lifecycle.
Architecture benchmarking: new architectural frameworks are being
conceived to support advanced services like 5G. An example of
these architectures is [I-D.ietf-detnet-architecture].
5. Guidance on 5G transport benchmarking
To be completed.
6. Security Considerations
This draft does not include any security considerations.
7. IANA Considerations
This draft does not include any IANA considerations
8. Acknowledgements
This work has been partly funded by the European Commission through
the H2020 project 5G-EVE (Grant Agreement no. 815074).
9. References
9.1. Normative References
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
Requirement Levels", BCP 14, RFC 2119,
DOI 10.17487/RFC2119, March 1997,
<https://www.rfc-editor.org/info/rfc2119>.
9.2. Informative References
[I-D.ietf-detnet-architecture]
Finn, N., Thubert, P., Varga, B., and J. Farkas,
"Deterministic Networking Architecture", draft-ietf-
detnet-architecture-13 (work in progress), May 2019.
[I-D.ietf-spring-srv6-network-programming]
Filsfils, C., Camarillo, P., Leddy, J.,
daniel.voyer@bell.ca, d., Matsushima, S., and Z. Li, "SRv6
Network Programming", draft-ietf-spring-srv6-network-
programming-01 (work in progress), July 2019.
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[RFC8456] Bhuvaneswaran, V., Basil, A., Tassinari, M., Manral, V.,
and S. Banks, "Benchmarking Methodology for Software-
Defined Networking (SDN) Controller Performance",
RFC 8456, DOI 10.17487/RFC8456, October 2018,
<https://www.rfc-editor.org/info/rfc8456>.
Authors' Addresses
Luis M. Contreras
Telefonica
Ronda de la Comunicacion, s/n
Sur-3 building, 3rd floor
Madrid 28050
Spain
Email: luismiguel.contrerasmurillo@telefonica.com
URI: http://lmcontreras.com/
Juan Rodriguez
Telefonica
Zurbaran, 12
Madrid 28010
Spain
Email: juan.rodriguezmartinez@telefonica.com
Lourdes Luque
Telefonica
Zurbaran, 12
Madrid 28010
Spain
Email: lourdes.luquecanto@telefonica.com
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