Leinster's Trevor Brennan was man of the match

But Magro, with the first of his two tries, took the Irish provincial side into the lead and after that there was only going to be one outcome.

Further tries came from Dempsey (two), Simon Keogh, another from Magro, Denis Hickie, Nathan Spooner and Eric Miller.

Scott Mitchell went over for Vale's consolation try.

It really was a champagne display by Leinster, who are giving the rest of the Celtic League something to think about.

Leinster were ahead 31-6 at half-time and were good value for that advantage.

They looked sharp in the set-pieces and produced some clever breaks, continually threatening the visitors' try-line.

Spooner had a great game, collecting a personal tally of 18 points with a try, five conversions and a penalty.

Leinster: Tries: Dempsey 2, Keogh, Magro 2, D. Hickie, Spooner, Miller. Cons: Spooner 5, Dunne. Pen: Spooner.

Ebbw Vale: Try: Mitchell. Con: Cull. Pens: Cull 2.

Att: 3,200

Leinster: Girvan Dempsey (capt); Denis Hickie, Adam Magro, David Quinlan, Simon Keogh; Nathan Spooner, Brian O'Meara; Peter Coyle, Gavin Hickie, Emmett Byrne, Trevor Brennan, Leo Cullen, Aidan McCullen, Keith Gleeson, Victor Costello.
Replacements: Corrigan, S Byrne, O'Kelly, Miller, Willis, Dunne, O'Driscoll.

Ebbw Vale: Cull; McKim, Takarangi, Matthews, Ridley; Mitchell, Ellis; Penisini, J. Evans, Clatworthy, Booyse, Sidoli, Jarman, G. Evans, Rogers.
Replacements: Jones, L. Phillips, Billen, W. Thomas, Betts, James, Weatherley.

Referee: J Barnard (RFU).