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gerrit.opencord.org / voltha / fa523c636bb0b8446a9a827713731ae8c6de8090
commitfa523c636bb0b8446a9a827713731ae8c6de8090[log] [tgz]
authorZsolt Haraszti <zharaszt@ciena.com>Tue Nov 08 00:35:59 2016 -0800
committerZsolt Haraszti <zharaszt@ciena.com>Tue Nov 08 00:35:59 2016 -0800
tree523f15968d6b78c746b64fe7d4417cec225d389d
parentc61999aa8148b9bf3e08f0e8394f26741cd113ce [diff]
Emergency fix to ansible

Look like the with_item <variable-name> feature is broken in the
latest 2.2.0 ansible code. It works fine with previous release
2.1.0. Inlining the lists instead of referring to the defaults
works fine. So inlining the list content is an emergency fix.

Change-Id: Ibb445abe73e6bdc9378bcad0af8c8816e1df6e6e
2 files changed
tree: 523f15968d6b78c746b64fe7d4417cec225d389d
  1. .dockerignore
  2. .gitignore
  3. BUILD.md
  4. Dockerfile.base
  5. Dockerfile.base.alpine
  6. Dockerfile.chameleon
  7. Dockerfile.ofagent
  8. Dockerfile.voltha
  9. GettingStartedLinux.md
  10. Jenkinsfile
  11. LICENSE.txt
  12. Makefile
  13. README.md
  14. Vagrantfile
  15. ansible/
  16. build.gradle
  17. chameleon/
  18. common/
  19. compose/
  20. env.sh
  21. experiments/
  22. gradle.properties
  23. gradle/
  24. gradlew
  25. gradlew.bat
  26. kafka/
  27. obsolete/
  28. ofagent/
  29. podder/
  30. requirements.txt
  31. settings.gradle
  32. setup.mk
  33. setup.py
  34. tests/
  35. voltha/
README.md

VOLTHA

What is Voltha?

Voltha aims to provide a layer of abstraction on top of legacy and next generation access network equipment for the purpose of control and management. Its initial focus is on PON (GPON, EPON, NG PON 2), but it aims to go beyond to eventually cover other access technologies (xDSL, Docsis, G.FAST, dedicated Ethernet, fixed wireless).

Key concepts of Voltha:

  • Network as a Switch: It makes a set of connected access network devices to look like a(n abstract) programmable flow device, a L2/L3/L4 switch. Examples:
    • PON as a Switch
    • PON + access backhaul as a Switch
    • xDSL service as a Switch
  • Evolution to virtualization: it can work with a variety of (access) network technologies and devices, including legacy, fully virtualized (in the sense of separation of hardware and software), and in between. Voltha can run on a decice, on general purpose servers in the central office, or in data centers.
  • Unified OAM abstraction: it provides unified, vendor- and technology agnostic handling of device management tasks, such as service lifecycle, device lifecycle (including discovery, upgrade), system monitoring, alarms, troubleshooting, security, etc.
  • Cloud/DevOps bridge to modernization: it does all above while also treating the abstracted network functions as software services manageable much like other software components in the cloud, i.e., containers.

Why Voltha?

Control and management in the access network space is a mess. Each access technology brings its own bag of protocols, and on top of that vendors have their own interpretation/extension of the same standards. Compounding the problem is that these vendor- and technology specific differences ooze way up into the centralized OSS systems of the service provider, creating a lot of inefficiencies.

Ideally, all vendor equipment for the same access technology should provide an identical interface for control and management. Moreover, there shall be much higher synergies across technologies. While we wait for vendors to unite, Voltha provides an increment to that direction, by confining the differences to the locality of access and hiding them from the upper layers of the OSS stack.

How can you work with Voltha?

While we are still at the early phase of development, you can check out the BUILD.md file to see how you can build it, run it, test it, etc.

How can you help?

Contributions, small and large, are welcome. Minor contributions and bug fixes are always welcome in form of pull requests. For larger work, the best is to check in with the existing developers to see where help is most needed and to make sure your solution is compatible with the general philosophy of Voltha.