Please note that Mommsen uses the AUC chronology (Ab Urbe Condita), i.e. from the founding of the City of Rome. You can use this reference table to have the B.C. dates
The Cimbri did not attack; indeed, when Carbo ordered them to evacuate
the territory of the Taurisci who were in relations of hospitality
with Rome--an order which the treaty with the latter by no means bound
him to make--they complied and followed the guides whom Carbo had
assigned to them to escort them over the frontier. But these guides
were in fact instructed to lure the Cimbri into an ambush, where the
consul awaited them.
Accordingly an engagement took place not far
from Noreia in the modern Carinthia, in which the betrayed gained
the victory over the betrayer and inflicted on him considerable loss;
a storm, which separated the combatants, alone prevented the complete
annihilation of the Roman army. The Cimbri might have immediately
directed their attack towards Italy; they preferred to turn to the
westward.
By treaty with the Helvetii and the Sequani rather than by
force of arms they made their way to the left bank of the Rhine and
over the Jura, and there some years after the defeat of Carbo once
more threatened the Roman territory by their immediate vicinity.