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gerrit.opencord.org / voltha-go / 0a822f9fdda0ade3d1b1eab8f2c4ca0abe99134f
commit0a822f9fdda0ade3d1b1eab8f2c4ca0abe99134f[log] [tgz]
authorkhenaidoo <knursimu@ciena.com>Wed May 08 15:15:57 2019 -0400
committerkhenaidoo <knursimu@ciena.com>Thu May 09 13:41:08 2019 -0400
tree0f7d74a960113a1498afdd71000290b3d4b6ac4d
parentd3e0f006380630b2002460f0281248c34b547964 [diff]
[VOL-1614] Device Management update in the Core

This commit went over the device management of devices in the Core
and made the following changes:
1) Update the device state machine to not remove logical
device or ports when a device is disabled.
2) Fix some issues around device deletion
3) Add additional APIs between the Core and Adapters to handle
the scenarios of enable/disable/delete a device
4) Update the simulated Adapters to handle disable/reenable/delete
5) Add a new set of tests for teh device state machine.

Change-Id: Ib2be87ec011762d5315a6d54581a87c1891e92be
17 files changed
tree: 0f7d74a960113a1498afdd71000290b3d4b6ac4d
  1. .gitignore
  2. .gitreview
  3. BUILD.md
  4. Gopkg.lock
  5. Gopkg.toml
  6. Makefile
  7. README.md
  8. adapters/
  9. afrouter/
  10. arouterd/
  11. cli/
  12. common/
  13. compose/
  14. db/
  15. docker/
  16. k8s/
  17. kafka/
  18. python/
  19. quickstart.md
  20. ro_core/
  21. rw_core/
  22. tests/
  23. vendor/
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.