Details unconditional QoS packet marking, including how policies assign marking values without conditional checks and how marked traffic receives consistent QoS treatment.
Unconditional QoS packet marking is a QoS traffic differentiation feature that
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overwrites the packet’s existing marking with the value configured in the policy map
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operates independently of policer conformance state or the packet’s current header markings, and
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applies through MQC set-actions (for example, setting DSCP, CoS, MPLS EXP, or qos-group) at the configured interface and direction.
Conditional QoS packet marking is a QoS traffic differentiation feature that
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modifies the packet’s marking based on specific traffic conditions such as policer conformance results (for example, conform, exceed, or violate actions), and
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allows differentiated treatment of packets depending on whether they meet defined rate or threshold criteria.