Cisco 7604 User Manual

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Cisco 7600 Series Router Cisco IOS Software Configuration Guide, Release 12.2SX
OL-4266-08
Chapter 42 Configuring PFC3BXL or PFC3B Mode MPLS QoS
PFC3BXL or PFC3B MPLS QoS Default Configuration
Classification at MPLS-to-MPLS Ingress Port
LAN port classification is based on the egress CoS from the PFC3BXL or PFC3B. OSM and FlexWAN
interfaces classify traffic using the match mpls experimental command. The match mpls
experimental command matches on the EXP value in the received topmost label.
Classification at MPLS-to-MPLS Egress Port
LAN port classification is based on the egress CoS value from the PFC3BXL or PFC3B. OSM and
FlexWAN interfaces classify traffic using the match mpls experimental command. The match mpls
experimental command matches on the egress CoS; it does not match on the EXP in the topmost label.
If the egress port is a trunk, the LAN ports and OSM GE-WAN ports copy the egress CoS into the egress
802.1Q field.
PFC3BXL or PFC3B MPLS QoS Default Configuration
This section describes the PFC3BXL or PFC3B MPLS QoS default configuration. The following global
PFC3BXL or PFC3B MPLS QoS settings apply:
Feature Default Value
PFC QoS global enable state
Note With PFC QoS disabled and all other PFC QoS
parameters at default values, default EXP is mapped
from IP precedence.
Note With PFC QoS enabled and all other PFC QoS
parameters at default values, PFC QoS sets Layer 3
DSCP to zero (untrusted ports only), Layer 2 CoS to
zero, the imposed EXP to zero in all traffic
transmitted from LAN ports (default is untrusted). For
trust CoS, the default EXP value is mapped from
COS; for trust DSCP, the default EXP value is mapped
from IP precedence. For OSM WAN ports, (default is
trust DSCP) the DSCP is mapped to the imposed EXP.
PFC QoS port enable state Enabled when PFC QoS is globally enabled
Port CoS value 0
Microflow policing Enabled
IntraVLAN microflow policing Disabled
Port-based or VLAN-based PFC QoS Port-based
EXP to DSCP map
(DSCP set from EXP values)
EXP 0 = DSCP 0
EXP 1 = DSCP 8
EXP 2 = DSCP 16
EXP 3 = DSCP 24
EXP 4 = DSCP 32
EXP 5 = DSCP 40
EXP 6 = DSCP 48
EXP 7 = DSCP 56

Cisco 7604 Specifications

General

Brand	Cisco
Model	7604
Category	Network Router
Language	English