InCNTRE/oftest — pull request #94 by ytch (2014-10-01 07:13:26+00:00)
Title: TC 40.210: send packets in background

According to the test spec:
```
Send for n seconds packets matching the flow to the data plane, then stop
```
Maybe sending packets need to run multiple times and at another thread,
in order to verify idle timeout won't be triggered?