多项选择题

InwhichtwowayscanyouinfluencehowdownstreamLSRstreatMPLStraffic?()

A.UseanEXPrewritetablE.
B.UseaDSCPrewritetablE.
C.StaticallyassignaCoSvaluetoanLDP-signaledLSP
D.StaticallyassignaCoSvaluetoanRSVP-signlatedLSP