Ten-man Forest managed to hang onto a point at Brentford despite Kris Commons giving them a dream start.
The former Stoke winger saw his fifth-minute free-kick deflected past Bees keeper George Bankole, who had originally handled outside his area.
However, Julian Bennett was sent off on the half hour after receiving a second booking and DJ Campbell pulled Brentford level.
The striker was on hand as Isaiah Rankin's shot came back off the post.
Brentford: Bankole, O'Connor, Sodje, Turner, Frampton (Fitzgerald 87), Rankin (Brooker 79), Newman, Tabb, Gayle (Tillen 64), Owusu, Campbell.
Subs Not Used: Nelson, Mousinho.
Booked: Bankole, Tabb, O'Connor, Sodje, Fitzgerald.
Goals: Campbell 34.
Nottm Forest: Gerrard, Thompson, Morgan, Breckin, Bennett, Southall, Friio, Perch, Commons (Gardner 87), Tyson, Grant Holt (Lester 87).
Subs Not Used: Bopp, Pedersen, Bastians.
Sent Off: Bennett (37).
Booked: Bennett, Southall, Tyson.
Goals: Commons 5.
Ref: M Russell (Hertfordshire).