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NMRG                                                       LM. Contreras
Internet-Draft                                                Telefonica
Intended status: Informational                             July 13, 2020
Expires: January 14, 2021


                        Interconnection Intents
            draft-contreras-nmrg-interconnection-intents-00

Abstract

   This memo introduces the use case of the usage of intents for
   expressing advance interconnection features, further than traditional
   IP peering.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

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   This Internet-Draft will expire on January 14, 2021.

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Evolution of Network interconnection  . . . . . . . . . . . .   2
   3.  Interconnection intents . . . . . . . . . . . . . . . . . . .   3
   4.  Interconnection intent structure  . . . . . . . . . . . . . .   3
   5.  Security Considerations . . . . . . . . . . . . . . . . . . .   3
   6.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   3
   Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . .   3
   Author's Address  . . . . . . . . . . . . . . . . . . . . . . . .   4

1.  Introduction

   The success of Internet-based services has been built on top of the
   global reachability of content accessed by the end-users, which is
   facilitated by the interconnection of individual networks owned by
   distinct service providers constituting independent administrative
   domains.

   Such interconnection services have been initially based simply on
   delivery of IP traffic between the interconnected parties leveraging
   on BGP.  This peer model enables full connectivity.  However, the
   traditional interconnection model shows some limitations.

   New capabilities based on network programmability and virtualization
   are producing service situations where a connectivity only approach
   is not sufficient.  The availability of computing capabilities
   internal to the networks, or attached to them, enable new scenarios
   where those capabilities can be consumed through the advertising or
   exposing of these execution environments from the perspective of the
   raw infrastructure (i.e., compute, storage and associated
   networking).  In addition or complementary to that, even service
   function could be advertised in order to make them available for
   interconnection.

   All these scenarios present clear evolutions of the interconnection
   model which can not be simply expressed through existing mechanisms,
   or at least, cannot be expressed in a simple (and comprehensive) way
   with such existing mechanisms.  Here is where an advanced
   interconnection intent can assist on declaring the goal of the
   interconnection transcending pure IP traffic exchange and including
   more advance capabilities as the ones mentioned before.

2.  Evolution of Network interconnection

   It becomes clear the trend to increasingly rely on multi-domain
   scenarios for the provision of services.  For instance, the access
   today to an on-demand OTT video on Internet implies the interaction



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   of more than one single administrative domain.  Thus, end-to-end
   service delivery over multi providers or domains will become the
   norm.

   Complex network services leveraging on virtualization solutions and
   leveraging on different infrastructure environments pertaining to
   distinct administrative domains, that is, operated and managed by
   distinct providers, can be easily foreseen.

   It is then necessary to explore mechanisms for interconnecting that
   multiple domain environments in a common, portable way independently
   of the owner of such infrastructure.

3.  Interconnection intents

   The interconnection intent should provide enough abstractions to
   express a variety of interconnection options.

   The purpose of the interconnection intent can be multiple:

   o  to enable multi-domain network service programming, by soliciting
      interconnection of service functions in different domains

   o  to enable multi-domain deployment of virtualized network
      functions, by advertising the availability of compute and storage
      resources in different domains

   o  to enable IP traffic interchange as in traditional peering

   o  to facilitate whatever combination of all of them

4.  Interconnection intent structure

   To be done.

5.  Security Considerations

   To be done.

6.  IANA Considerations

   This draft does not include any IANA considerations

Acknowledgments

   This work has been partly funded by the European Commission through
   the H2020 project 5GROWTH (Grant Agreement no. 856709).




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Author's Address

   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/








































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