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Community Highlights – April 2021

May 5, 2021
Ain Indermitte
Ain Indermitte About the author

We want to take a moment to highlight people and contributions that are making a substantial difference across our amazing communities. 

Table of Contents (alphabetical)

Ambassador Program
Developer Relations


In this month’s Aether update, we are focusing on Aether Operational Platform and Applications

  • Enhanced automation of the POD deployment process and used it to deploy Aether at all Pronto sites.
  • Enhanced runtime operational control portal with additional unit and scaling tests.
  • Pronto network monitoring and alerts dashboard enhanced to facilitate achieving progressively higher nines availability goals set forth for the upcoming quarters.
  • Improved automated CI/CD toolchain with infrastructure-as-code principles.
  • Work commenced on developing security tools for Aether control and management.
  • Demonstrated two edge applications (Motion Capture and Command Control) that collectively enable closed-loop control of autonomous drone flight formations on the Pronto POD operationalized at Stanford Flight Lab. Connectivity between the edge applications and the drones have been established using Aether’s 4G/5G connectivity services that make use of 4G CBRS dongles on drones, Aether small cells, and Aether’s SD-Fabric and SD-Core components.

Ambassador Program

  • The CALA Ambassador team is hosting a webinar, "Working with ONF to Transform Mobile and Broadband Networks in LATAM". The webinar will be delivered May 11th in Spanish and May 13th in Portuguese. Register to attend.


  • 5GC NF image building is integrated with Jenkins CI. Also we cleanup the Makefiles and Dockerfile for each NF.
  • We moved webconsole folder from 5gc repo to a dedicated repo as other NFs.
  • Started to set up the 5GC Xn based handover test environment with NG4T.
  • We wrote both override value files of the helm chart for both staging deployment and Radisys deployment of 5GC. 

Developer Relations


  • Continued exploring updates to the Physical inventory model.
  • Identifying areas to focus on in OIMT to support security in the ONF interface, especially TAPI, and considering relevant use cases for the following:
    • Control/reporting of security in the network
    • Control/reporting of security for the management-control system
    • Securing a stream
    • Streaming security information
    • Dealing with security concerns for a view/slice (access control etc.)
      • When building the view
      • When accessing information in the view
      • When streaming a view


  • Fixed an issue in the ONOS application store that prevented some drivers from being loaded correctly.


  • TAPI subproject held a virtual face-to-face meeting April 12, 13 and 15 with Andrea Mazzini (Nokia) and Karthik Sethuraman (NEC) leading. 
    • Work was done on path computation service, physical route and optical impairments, alarms, OTU, OMS and ODU modeling
    • Key contributions came from Ramon Casellas (TEF/CTTC), Nigel Davis (Ciena) and Andrea
    • There was a presentation on the EU PASSION Project by Prof. Pierpaolo Boffi (Politecnico di Milano)


  • The P4 Workshop is being held as a virtual event May 18-20th. Check out the great line-up of live keynotes and on-demand talks on the agenda. It’s free to join us so sign-up now!


  • SD-RAN Community continues to grow. In April we kicked off two new collaborations.
    • We are working with Radisys CU/DU integration with ONF’s micro-ONOS based nRT-RIC. Initial focus is on the KPM-v2 Service Model (SM), standardized by O-RAN
    • We also started working on a new use-case for Mobile Handovers with Intel Labs. The initial focus was on the development of a pre-standard SM for this use case
  • Aside from the new collaborations, we continue to work with Facebook and AirHop towards
    • Upgrading our SON based use-case (PCI conflict resolution) to incorporate 5G nodes
    • Develop modifications to the RC-PRE Service Model to incorporate changes that allow for Mobility Load Balancing (MLB)
  • We continue to collaborate with O-RAN WG-3. Based on their clarifications for the KPM v2 SM, we patched the SD-RAN release we made end-of-Q1 to incorporate Action Definition Format 1. These patches were released as SD-RAN v1.1.1


  • Various bug fixes and improvements in the Opeonu-go, thanks to Adtran, ONF, Netsia
    • Alarm management
    • Soft reboot
    • Flow deletion 
    • Error reporting
    • Performance Metrics
  • Added ONU and OLT reboot tests for TT, thanks to ONF
  • Refreshed Image protos with voltctl implementation for ONU software updates to support download, commit, activate separate procedures, thanks to ONF, Radisys and Adtran
  • Enhanced DMI interface with gRCP streams for Events and Alarms thanks to the team at Radisys
  • First contributions to the Open Device agent and Open Device manager thanks to the team at Radisys
  • Move to keyword based pipeline with the new voltha-infra and voltha-stack charts for better support and future compatibility


  • Max Pudelko (ONF) contributed many improvements and bug fixes, including build system clean up, dependency upgrade (Abseil March 2021, gRPC 1.33.6, Protobuf 3.14.0, BF SDE 9.5.0), and Stratum-BfRt enhancements (deflect on drop, SDE logging and error handling).
  • Stratum no longer supports port 28000 for gRPC connections by default. You should use port 9339 (gNMI) or 9559 (P4Runtime) instead. Because Stratum uses a single gRPC server, either port number works for both services. To override the default port at runtime, use the -external_stratum_urls flag.


  • Minor fixes and platform improvements
  • Deployment pipeline improvement - wait until previous resources are cleaned up completely before launching new instances.
  • Diagnostic pipeline improvement - now support capturing Karaf log as well


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Ain IndermitteHead of Developer Relations
Ain's extensive career in the developer relations, program management, mobile software, enterprise SaaS, and telecommunications disciplines spans Nokia, Microsoft, MobileIron, and ServiceNow. He has worked in Estonia, Finland, California, and Texas, and has traveled considerably around the globe for business. Ain is currently serving as Head of Developer Relations at the Open Networking Foundation (ONF), focusing on community leadership, developer tools, training, and member engagement - with the goal of transforming the telecommunications industry through the adoption of software defined networking and open source software. Ain is married with five children and a dog. During his free time, he likes to hike or bike to beautiful places and fly his drones.