tree a3e6f6b0e8ed2031ddfb4f696caf1346528c859b
parent 2ffcd10ac9bb9b4204f978bb6c5e979eb3ade0b2
author Ayaka Koshibe <ayaka@onlab.us> 1421364623 -0800
committer Gerrit Code Review <gerrit@onlab.us> 1421512875 +0000

NullLinkProvider to generate link events. This provider
currently chains null devices together in a linear topology.

The tunable parameters for this provider are:
  - flicker = [default false]  : flap the links by sending LinkEvents
  - eventRate = [default 3000] : time between LinkEvents, in msec

Reference: ONOS-446

Change-Id: I865c1c43c3216d9b64d67bda7c118bb041d5b1c9