Monthly Archives: November 2017

Presence of 5G-Ex on the 100th IETF meeting in Singapore

November 11-17, 2017 the 100th IETF meeting took place in Singapore.
IETF is one of the key standards development organizations (SDOs) where 5GEx is actively contributing. During this meeting, different contributions were made from 5GEx partners:

- “Network Virtualization Research Challenges” . This document, adopted by the Network Function Virtualization (NFV) research group, identifies and describes open research challenges for network virtualization. One of the documented challenges is precisely multi-domain orchestration. The NFVRG issued a Research Group Last Call, which resulted in some reviews that have been addressed by the authors. Next step is requesting publication of it as Request For Comments (RFC) to the IETF. The authors (UC3M, Telefonica and Interdigital) will work on some minor updates of the contribution
before this final step.

- UCL presented “”Network Slicing Supported by Dynamic VIM Instantiation” at the NFVRg session. Dr. Stuart Clayman received quite interesting questions and feedback during his presentation, that you is available here

- The network slicing effort being driven by Prof. Alex Galis is now focusing on “Common operation an management of network slicing” (COMS), which got time to present during the Operations and Management Area Working Group session of the meeting. The presentation is available here. A 5GEx specific use case was presented as an example of the need of COMS efforts at IETF.

There were other interesting presentations for 5GEx during the week, as for example: “Considerations on Network Virtualization and Slicing

Showcasing the integrated 5G-Ex system with robotics control demo at IEEE NFV-SDN

A successful 5GEx demonstration was delivered at the 3rd IEEE Conference on Network Function Virtualization and Software Defined Networking at Berlin, Germany, 6-8th November 2017 (

The orchestration was showcased on an infrastructure consisting of multiple administrative domains, which were represented by Docker Domains as computing resources and OpenFlow switches as transport domains. The resilient robotics control service was decomposed by the VNF Manager into a duplicated PID controller logic loop, which can be executed in Docker containers. The multi-domain orchestration system reserved independent computing resources for the controllers and disjoint transport paths for their traffic. The balancing robot was receiving control information through Wi-Fi from both PID controllers.

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