Munster climbed to the Pro12 summit after ruthlessly seeing off struggling Treviso 46-3, running in seven tries at Thomond Park on Saturday.
In the only fixture of the day, the hosts took advantage of Leinster's Friday night defeat to Scarlets to jump two places from third courtesy of this bonus-point win.
Munster were 10-3 ahead midway through the first half as Robin Copeland barged over from a five-metre scrum, and that advantage stood at 22-3 at the interval thanks to Andrew Conway's brace.
The second was a superb effort, Ronan O'Mahony taking Tyler Bleyendaal's cross-kick and finding Conway, who raced away to score.
Darren O'Shea claimed his first Munster try early in the second period as the bonus point was secured, O'Mahony adding a double of his own either side of Alex Wootton's score.
The bonus-point success sent Munster one clear of Leinster at the top, while it was a familiar tale of woe for the visitors, who have lost five on the bounce.