Pfc3Bxl Or Pfc3B Mode Mpls Qos Restrictions And Guidelines - Cisco 7604 Configuration Manual

Chapter 42 Configuring PFC3BXL or PFC3B Mode MPLS QoS
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For information about supported non-MPLS QoS commands, see
Note
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The following commands are not supported:
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PFC3BXL or PFC3B Mode MPLS QoS Restrictions and Guidelines

When configuring PFC3BXL or PFC3B mode MPLS QoS, follow these guidelines and restrictions:
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OL-4266-08
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
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set qos-group
set discard-class
For IP-to-MPLS or EoMPLS imposition when the received packet is an IP packet:
– When QoS is disabled, the EXP value is based on the received IP ToS.
When QoS is queuing only, the EXP value is based on the received IP ToS.
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For EoMPLS imposition when the received packet is a non-IP packet:
When QoS is disabled, the EXP value is based on the ingress CoS.
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When QoS is queuing only, the EXP value is based on the received IP ToS.
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For MPLS-to-MPLS operations:
Swapping when QoS is disabled, the EXP value is based on the original EXP value (in the
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absence of EXP mutation).
Swapping when QoS is queuing only, the EXP value is based on the original EXP value (in the
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absence of EXP mutation).
Imposing additional label when QoS is disabled, the EXP value is based on the original EXP
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value (in the absence of EXP mutation).
Imposing an additional label when QoS is queuing only, the EXP value is based on the original
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EXP value (in the absence of EXP mutation).
Popping one label when QoS is disabled, the EXP value is based on the underlying EXP value.
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Popping one label when QoS is queuing only, the EXP value is based on the underlying EXP
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value.
EXP value is irrelevant to MPLS-to-IP disposition.
Cisco 7600 Series Router Cisco IOS Software Configuration Guide, Release 12.2SX
PFC3BXL or PFC3B Mode MPLS QoS Restrictions and Guidelines
"Configuring PFC QoS" section on
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