From /net/sched/ you can find a variant of RED, named generic RED (GRED), implemented in sch_gred.c . Figure out how it works and how it differs from RED. IntServ vs. DiffServ? (Compare their QoS...

From /net/sched/ you can find a variant of RED, named generic RED (GRED), implemented in sch_gred.c . Figure out how it works and how it differs from RED.

IntServ vs. DiffServ? (Compare their QoS granularity, complexity at edge routers, complexity at core routers, and scalability.)