Dunbar had 39 tackles in 12 games played in 2013. In his two years with the Rams, Dunbar has tallied 4.5 sacks and 121 tackles. He played his first four years, from 2008-2011, in the NFL with the Saints.
According to the NFL Network, Dunbar's deal is worth $3.5 million.
Follow me on Twitter: @RavensInsider
Aaron Wilson covers the Ravens for The Baltimore Sun.