tree 8a3b965c1af580158b61e7c6eaab1cb6f3ce2ae0
parent 267a906fc12bcc358a921639f03568102d81fb4c
author Zsolt Haraszti <zharaszt@ciena.com> 1482966503 -0800
committer Zsolt Haraszti <zharaszt@ciena.com> 1482999343 -0800

PONSIM: PON simulator with real dataplane handling

This was needed because neither CPQD nor OVS can handle
both zero-tagged packets and 802.1ad (QinQ).

- extensive unittest proves ponsim functional correctness
  (for the common use-cases needed in the PON scenario)
- integrated with frameio and coupled with a rather
  simple gRPC NBI, ponsim can be operated from Voltha
  just like a real PON system
- posim_olt/_onu adapters added to Voltha to work on
  ponsim
- CLI can be used to preprovision and activate a PONSIM
  instance (e.g., preprovision_olt -t ponsim_olt -H localhost:50060)
- Some of olt-oftest:olt-complex testcases can be run on
  the ponsim device (in vagrant/Ubuntu environment),
  but there are some remaining issues to work out:
  - barrier calls in OF do not guaranty that the flow
    is already installed on the device. This is a generic
    issue, not just for ponsim.
  - the whole test framework is inconsistent about zero-
    tagged vs. untagged frames at the ONUs, while ponsim
    is rather pedantica and does exactly what was defined
    in the flows.

Change-Id: I0dd564c932416ae1566935492134cb5b08113bdc