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From: "Rui L. Aguiar" <ruilaa@ua.pt>
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Subject: [Netslices] SI on Network Slicing: trends, research and standardization - DATE: June 1
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Apologies for the (... expectable...) duplication of announcement. But 
read on, at least once!

======================================================

Wiley Transactions on Emerging Telecommunications Technologies

Special Issue on
*Network Slicing: trends, research and standardization*
======================================================
https://onlinelibrary.wiley.com/journal/21613915

The number of Internet accesses is growing exponentially, with an ever 
increasing number of mobile devices for multiple Cyber-Physical Systems 
and Internet-of-Things applications. Network technologies are required 
to independently support billions of devices for wired and wireless 
access and to incorporate new isolated services for Cyber-Physical 
Systems and Internet-of-Things. Network slicing - a specific form of 
virtualization that allows multiple logical networks to run and be 
managed on top of a shared physical network infrastructure - is a new 
approach for improving overall performance and security where 
infrastructures, software and spectrum are combined into a single 
software-based virtual network entity, which then can be offered to 
different parties with an effective cost-benefit ratio. Network slicing 
combines different wired and wireless networks with different access 
technologies and network topologies (infrastructure-based and 
infrastructure-less) which makes the essential requirements on 
convergence, sharing, isolation, security and abstraction difficult to 
achieve. Furthermore, considering the wireless links, wireless networks 
operate in different spectrum bands ranging from MHz to GHz, unlicensed 
and licensed RF bands, and with different geographic coverage (e.g., 
wide, local and personal areas). Thus far, there is no unified and 
universal architecture for wireless network virtualization available for 
commercial networks.
These advances in Computing and Communication Technologies - and their 
applications to different emerging systems, network slicing and 
virtualization - have generated interest from industry, government and 
academia, all trying to explore the same common infrastructure. This 
special issue will bring researchers and practitioners together to 
present the latest developments and technical solutions concerning 
various aspects of advances in network slicing and novel  related 
virtualization technologies. This SI seeks original unpublished 
technical papers focusing on theoretical analysis, emerging 
applications, novel system architecture design and evaluation, 
experimental studies, and standardization.
Topics of interest include but are not limited to:
•    Network slicing architectures and protocols
•    Network slice control, management and orchestration
•    Network slicing and SDN architectures, operations and protocols
•    Dynamic wired and wireless network virtualization and softwarization
•    Slicing-friendly infrastructure and data plane programmability
•    Mobility management and topology control in network slicing
•    Network slicing stitching, inter-slicing
•    Analytics for intelligent orchestration of softwarized infrastructures
•    Distributed co-ordination of slice provisioning and multi-domain 
orchestration
•    Network slicing support for ICN, MEC and other architectures
•    Scalability, performance and complexity analysis and evaluation
•    Performance modelling, analysis and optimization of slice-enabled 
networks
•    Self-healing/configuration/optimization of network slicing
•    Self-organizing networks and autonomic communications applied to 
network slicing
•    Network slicing economics and game theory
•    Interference mitigation and awareness for slice isolation
•    Slice-related spectrum-management regulation and policy making
•    Security, trust and privacy issues
•    Applying distributed ledger technologies to support slicing
•    Applications, case studies, and real-world test beds of network slicing
•    Experimental deployments
•    Standardization activities

Submission
===========

Authors are advised to submit their research paper following the ETT 
Paper template. More information available at
http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)2161-3915/homepage/ForAuthors.html 


Important Dates
===============
• *Submission Deadline: June 1, 2018*
•    First Round Authors Notification: September 1, 2018
•    Second Round Authors Notification: November 1, 2018
•    Final Manuscript: November 20, 2018

Guest Editors
•    Rui L. Aguiar, Instituto de Telecomunicações/DETI, Universidade de 
Aveiro, Portugal
•    Seil Jeon, Sungkyunkwan Uniersity, Korea
•    Diego Lopez, Telefonica I+D, Spain
•    Rafael Pasquini, Universidade Federal de Uberlândia, Brazil
•    Danda B. Rawat, Howard University, USA
•    Qi Wang, University of West Scotland, UK

-- 
Rui L. Aguiar
Full Professor
Instituto de Telecomunicações/DETI, Universidade de Aveiro
3810-193 Aveiro Portugal
----
IEEE ComSoc Distinguished Lecturer


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    <p>Apologies for the (... expectable...) duplication of
      announcement. But read on, at least once!<br>
    </p>
    <p>======================================================<br>
    </p>
    <p>Wiley Transactions on Emerging Telecommunications Technologies<br>
      <br>
      Special Issue on <br>
      <b>Network Slicing: trends, research and standardization</b><br>
      ======================================================<br>
      <a class="moz-txt-link-freetext" href="https://onlinelibrary.wiley.com/journal/21613915">https://onlinelibrary.wiley.com/journal/21613915</a></p>
    <p>The number of Internet accesses is growing exponentially, with an
      ever increasing number of mobile devices for multiple
      Cyber-Physical Systems and Internet-of-Things applications. 
      Network technologies are required to independently support
      billions of devices for wired and wireless access and to
      incorporate new isolated services for Cyber-Physical Systems and
      Internet-of-Things. Network slicing - a specific form of
      virtualization that allows multiple logical networks to run and be
      managed on top of a shared physical network infrastructure - is a
      new approach for improving overall performance and security where
      infrastructures, software and spectrum are combined into a single
      software-based virtual network entity, which then can be offered
      to different parties with an effective cost-benefit ratio. Network
      slicing combines different wired and wireless networks with
      different access technologies and network topologies
      (infrastructure-based and infrastructure-less) which makes the
      essential requirements on convergence, sharing, isolation,
      security and abstraction difficult to achieve. Furthermore,
      considering the wireless links, wireless networks operate in
      different spectrum bands ranging from MHz to GHz, unlicensed and
      licensed RF bands, and with different geographic coverage (e.g.,
      wide, local and personal areas). Thus far, there is no unified and
      universal architecture for wireless network virtualization
      available for commercial networks. <br>
      These advances in Computing and Communication Technologies - and
      their applications to different emerging systems, network slicing
      and virtualization - have generated interest from industry,
      government and academia, all trying to explore the same common
      infrastructure. This special issue will bring researchers and
      practitioners together to present the latest developments and
      technical solutions concerning various aspects of advances in
      network slicing and novel  related virtualization technologies.
      This SI seeks original unpublished technical papers focusing on
      theoretical analysis, emerging applications, novel system
      architecture design and evaluation, experimental studies, and
      standardization.<br>
      Topics of interest include but are not limited to:<br>
      •    Network slicing architectures and protocols<br>
      •    Network slice control, management and orchestration<br>
      •    Network slicing and SDN architectures, operations and
      protocols <br>
      •    Dynamic wired and wireless network virtualization and
      softwarization <br>
      •    Slicing-friendly infrastructure and data plane
      programmability<br>
      •    Mobility management and topology control in network slicing<br>
      •    Network slicing stitching, inter-slicing<br>
      •    Analytics for intelligent orchestration of softwarized
      infrastructures<br>
      •    Distributed co-ordination of slice provisioning and
      multi-domain orchestration<br>
      •    Network slicing support for ICN, MEC and other architectures<br>
      •    Scalability, performance and complexity analysis and
      evaluation<br>
      •    Performance modelling, analysis and optimization of
      slice-enabled networks<br>
      •    Self-healing/configuration/optimization of network slicing<br>
      •    Self-organizing networks and autonomic communications applied
      to network slicing <br>
      •    Network slicing economics and game theory<br>
      •    Interference mitigation and awareness for slice isolation<br>
      •    Slice-related spectrum-management regulation and policy
      making<br>
      •    Security, trust and privacy issues<br>
      •    Applying distributed ledger technologies to support slicing <br>
      •    Applications, case studies, and real-world test beds of
      network slicing<br>
      •    Experimental deployments<br>
      •    Standardization activities  <br>
      <br>
      Submission<br>
      ===========<br>
      <br>
      Authors are advised to submit their research paper following the
      ETT Paper template. More information available at <br>
<a class="moz-txt-link-freetext" href="http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)2161-3915/homepage/ForAuthors.html">http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)2161-3915/homepage/ForAuthors.html</a>
      <br>
      <br>
      Important Dates<br>
      ===============<br>
      •    <b>Submission Deadline: June 1, 2018</b><br>
      •    First Round Authors Notification: September 1, 2018<br>
      •    Second Round Authors Notification: November 1, 2018 <br>
      •    Final Manuscript: November 20, 2018<br>
      <br>
      Guest Editors<br>
      •    Rui L. Aguiar, Instituto de Telecomunicações/DETI,
      Universidade de Aveiro, Portugal<br>
      •    Seil Jeon, Sungkyunkwan Uniersity, Korea<br>
      •    Diego Lopez, Telefonica I+D, Spain<br>
      •    Rafael Pasquini, Universidade Federal de Uberlândia, Brazil<br>
      •    Danda B. Rawat, Howard University, USA<br>
      •    Qi Wang, University of West Scotland, UK<br>
      <br>
    </p>
    <pre class="moz-signature" cols="72">-- 
Rui L. Aguiar
Full Professor
Instituto de Telecomunicações/DETI, Universidade de Aveiro
3810-193 Aveiro Portugal
----
IEEE ComSoc Distinguished Lecturer
</pre>
  </body>
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From nobody Wed Apr 11 03:00:43 2018
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From: <philip.eardley@bt.com>
To: <NetSlices@ietf.org>
Thread-Topic: Comments on COMS BoF 
Thread-Index: AdPRe+4GGzyzevn/R6aZ8aXOyX1UcA==
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Hi,
I thought the presentations and discussion at the COMS BoF was interesting.=
 Thanks also to the proponents for reacting to previous feedback, personall=
y I think this is getting quite close to a sensible set of work. Here are s=
ome comments.
I think it would be useful to work on a common information model to include=
 connectivity, compute and storage resources. I'd exclude functionality (VN=
Fs) from the information model - as VNFs seem orthogonal to resources and a=
lso an information model for even one VNF is hard.
I'm unclear if COMS should work on "the related YANG model". I don't think =
we should work on specific data models, but ok if Yang is the way of record=
ing the information model. (In RFC3444 terms, we should "model managed obje=
cts at a conceptual level, independent of any specific implementations or p=
rotocols used to transport the data" and not on something "intended for imp=
lementors and include protocol-specific constructs")
I think the CSI & SDI interfaces should be the same. I couldn't find a clea=
r description of them - but as I understand it, the high-level architecture=
 has two interfaces, a Service Delivery Interface (SDI) and Customer Servic=
e Interface (CSI). The SDI is between the network provider and orchestrator=
, and also between hierarchical orchestrators. The CDI is between the custo=
mer ('tenant') and provider. For me these interfaces are the same - in the =
same way that the network provider wants to request resources from an orche=
strator (or understand what resources are available),similarly the tenant w=
ants to request resources (or understand what's available) from the network=
 provider.
An objective for us (BT) is to enable hierarchical service providers (ie a =
service provider can devolve part, or even all, of its network & compute to=
 another provider). This should be much simpler to achieve if the interface=
 is recursive, therefore I'd have this as a specific objective.
As well as COMS defining the interface and information model, I think a pre=
liminary step is to agree the high-level description for these (ie somethin=
g equivalent to a protocol model https://tools.ietf.org/html/rfc4101).
A comment was made, I think by Ignas, that 'one universal interface is a ni=
ce vision, but isn't practical'. I think that in practice existing domains =
will have their existing orchestrators, so an adaptor is needed to 'match' =
to the standardised SDI - but it is still valuable to have that single, sta=
ndardised interface. (The high-level architecture should show these adaptor=
s.)
I also note that the scope is no longer specific to slicing (this is good) =
- but how to coordinate orchestrators, so that aspects of a deployment can =
be devolved to other providers. Devolution is easiest if there is a common =
interface with a common understanding of what types of resource there are a=
nd how to describe them.
Whilst there are several standards bodies with an interest in this topic (o=
f information model & interface), personally I think the IETF could play a =
useful role.
Best wishes,
Phil/



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<body lang=3D"EN-GB" link=3D"#0563C1" vlink=3D"#954F72">
<div class=3D"WordSection1">
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">Hi,<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">I thought the presentations and discussion at the COMS BoF was int=
eresting. Thanks also to the proponents for reacting to previous feedback, =
personally I think this is getting quite
 close to a sensible set of work. Here are some comments.<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">I think it would be useful to work on a common information model t=
o include connectivity, compute and storage resources. I&#8217;d exclude fu=
nctionality (VNFs) from the information model
 &#8211; as VNFs seem orthogonal to resources and also an information model=
 for even one VNF is hard.<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">I&#8217;m unclear if COMS should work on &#8220;the related YANG m=
odel&#8221;. I don&#8217;t think we should work on specific data models, bu=
t ok if Yang is the way of recording the information model.
 (In RFC3444 terms, we should &#8220;model managed objects at a conceptual =
level, independent of any specific implementations or protocols used to tra=
nsport the data&#8221; and not on something &#8220;intended for implementor=
s and include protocol-specific constructs&#8221;)<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">I think the CSI &amp; SDI interfaces should be the same. I couldn&=
#8217;t find a clear description of them &#8211; but as I understand it, th=
e high-level architecture has two interfaces, a Service
 Delivery Interface (SDI) and Customer Service Interface (CSI). The SDI is =
between the network provider and orchestrator, and also between hierarchica=
l orchestrators. The CDI is between the customer (&#8216;tenant&#8217;) and=
 provider. For me these interfaces are the same
 &#8211; in the same way that the network provider wants to request resourc=
es from an orchestrator (or understand what resources are available),simila=
rly the tenant wants to request resources (or understand what&#8217;s avail=
able) from the network provider.
<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">An objective for us (BT) is to enable hierarchical service provide=
rs (ie a service provider can devolve part, or even all, of its network &am=
p; compute to another provider). This should
 be much simpler to achieve if the interface is recursive, therefore I&#821=
7;d have this as a specific objective.
<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">As well as COMS defining the interface and information model, I th=
ink a preliminary step is to agree the high-level description for these (ie=
 something equivalent to a protocol
 model <a href=3D"https://tools.ietf.org/html/rfc4101">https://tools.ietf.o=
rg/html/rfc4101</a>).
<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">A comment was made, I think by Ignas, that &#8216;one universal in=
terface is a nice vision, but isn&#8217;t practical&#8217;. I think that in=
 practice existing domains will have their existing orchestrators,
 so an adaptor is needed to &#8216;match&#8217; to the standardised SDI - b=
ut it is still valuable to have that single, standardised interface. (The h=
igh-level architecture should show these adaptors.)<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">I also note that the scope is no longer specific to slicing (this =
is good) &#8211; but how to coordinate orchestrators, so that aspects of a =
deployment can be devolved to other providers.
 Devolution is easiest if there is a common interface with a common underst=
anding of what types of resource there are and how to describe them.
<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto">Whilst there are several standards bodies with an interest in this=
 topic (of information model &amp; interface), personally I think the IETF =
could play a useful role.
<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;margin-bottom:12.0p=
t">Best wishes,<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;margin-bottom:12.0p=
t">Phil/<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"mso-margin-top-alt:auto;mso-margin-bottom-a=
lt:auto"><span lang=3D"EN" style=3D"mso-fareast-language:EN-GB"><o:p>&nbsp;=
</o:p></span></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
</body>
</html>

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From: <philip.eardley@bt.com>
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Thread-Topic: [Netslices] Comments on COMS BoF
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From: "Adrian Farrel" <adrian@olddog.co.uk>
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Subject: [Netslices] Late draft minutes for COMS
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https://datatracker.ietf.org/meeting/101/session/coms

There are a few question marks if you want to make some suggestions.

Thanks to the note-takers.

Cheers,
Adrian

