多项选择题
A.Implemented with firewall filters. B.Typically configured on core routers. C.Typically configured on customer facing routers. D.Implemented with Behavior Aggregate （BA） classification.
A.Use an EXP rewrite table. B.Use a DSCP rewrite table. C.Statically assign a CoS value to an LDP-signaled LSP D.Statically assign a CoS value to an RSVP-signlated LSP
A.Log incoming traffic. B.Classify incoming packets. C.Manage outbound bandwidth. D.Manage congestion by intelligently dropping traffic. E.Classify ATM QoS packets into a equivalent IP CoS environment.