The "troops" under discussion is a radio-technical unit, their aim is reconnaissance and communication. The article you provided shows two heavy tanks which is impertinent to the case. So, the article is actually lying.
Movement of the troops don't actually mean anything. First of all there has been several military exercises during last year in Russia. Secondly, even if that particularly division moved to the border of Ukraine it's explainable since the territory of the adjacent country after the coup d'etat has become the source of danger for Russia, so some measures to strengthen state borders are completely justified.