This way traffic modes set dynamically by peers are cleared and can be
reset by next tests easily.
Change-Id: I177441b2d43298b3836ccf78fe11267333e80665
In the past, we were automatically running [large parts of] the nplab
M3UA and SUA test suites, but those implement only a fraction of the
functionality. Particularly, they don't cover the non-standard IPA
behavior, and they don't cover RKM (routing key management).
Let's introduce an initial set of STP tests with this patch. We try
to not duplicate nplab here, and implement bits not covered there.
Change-Id: I628a87385cac0dfe708a0d74a5088fbd5a4790cd