Frazier Campbell opened the scoring after 20 minutes, making it two goals in two games for the returning attacker, before Stephane Sessegnon doubled the hosts’ lead before the break.
Daniel Ayala put through his own net early in second half to compound Norwich’s misery; The Black Cats are now up to 8th in the Premier League standings, leapfrogging the Canaries.
Carrow Road boss Paul Lambert had no complaints after the defeat, and feels the better side on the night won.
“We were second best all game, we never got going at all, that’s the honest assessment,” the Scottish coach told Sky Sports.
“We were beaten by the better team on the night.
“We started ok, but Sunderland got a foot hold in the game. The opening goal was a terrific strike and the second was poor from our point of view but if I’m being honest we were well beaten.
“I’m glad we never gave up, that’s probably the most pleasing thing,
“But the lads have done well over the course of the season and hopefully we can put that one to be and go again on Saturday,” he commented.
Sunderland travel to Stoke at the weekend, whilst Norwich host Bolton.
By Gareth McKnight