A.exp B.dscp C.802.1P D.inet-precedence mode ipprec-default E.inet-precedence mode ipprec-compatability
A.Best effort(BE) B.Network control(NC) C.Assured forwarding(AF) D.Expedited forwarding(EF)
A.Set the next hop. B.Discard packets. C.Set the loss priority. D.Sample the packet content.