Cisco WS-SUP32-GE-3B Software Configuration Guide - Page 654

MPLS QoS Commands Chapter 39 Configuring MPLS QoS Feature Default Value Marked-down DSCP from DSCP map Marked-down DSCP value equals original DSCP value (no mark down) EXP mutation map No mutation map by default Policers None Policy maps None MPLS flow mask in NetFlow table Label + EXP value MPLS core QoS There are four possibilities at the MPLS core QoS: • Swapping-Incoming EXP field is copied to outgoing EXP field. • Swapping + imposition-Incoming EXP field is copied to both the swapped EXP field and the imposed EXP field. Note If there is a service policy with a set for EXP field, its EXP field will be placed into the imposed label and also into the swapped label. MPLS to IP edge QoS • Disposition of topmost label-Exposed EXP field is preserved. • Disposition of only label-Exposed IP DSCP is preserved. Preserve the exposed IP DSCP MPLS QoS Commands MPLS QoS on the Catalyst 6500 series switches supports the following MPLS QoS commands: • match mpls experimental topmost • set mpls experimental imposition • police • mls qos map exp-dscp • mls qos map dscp-exp • mls qos map exp-mutation • mls qos exp-mutation • show mls qos mpls • no mls qos mpls trust exp Note For information about supported non-MPLS QoS commands, see "Configuring PFC QoS" section on page 38-44. 39-16 Catalyst Supervisor Engine 32 PISA Cisco IOS Software Configuration Guide, Release 12.2ZY OL-11439-03