Like many teams, the Raiders have opted to get to 75 players via at least two waves of roster moves.
Oakland launched the process by reducing to 83, via the release of seven players.
Troup, a second-round pick of the Bills in 2010, was out of football in 2013 before signing with the Raiders in January.
Like all teams, the Raiders must get to 75 players by 4:00 p.m. ET on Tuesday.