please tell what is meaning which is in BOLD format
sh policy-map PWC_8Mb_CHILD_IN_SIP
Policy Map PWC_8Mb_CHILD_IN_SIP
police cir 1638000 bc 307200 be 614400
conform-action set-mpls-exp-imposition-transmit 5
police cir 1638000 bc 307200 pir 8192000 be 3072000
conform-action set-mpls-exp-imposition-transmit 4
exceed-action set-mpls-exp-imposition-transmit 3
police cir 4915000 bc 921600 pir 8192000 be 3072000
conform-action set-mpls-exp-imposition-transmit 2
exceed-action set-mpls-exp-imposition-transmit 1
The conform-action describes what action will be taken on traffic that is within the CIR of the policer. In the case of the Class PWC-COS2 policer, conforming traffic will have the EXP bits (AKA Traffic Class bits) set to 4 if an MPLS Push/Impose operation is performed.
The exceed-action describes what action will be taken on traffic that exceeds the CIR but is within the excess burst limit.
The violate-action describes the action that will be taken on traffic that exceeds both the CIR and the excess burst limits.