Mpls Qos Commands - Cisco 7604 Configuration Manual
Ios software configuration guide
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MPLS QoS Commands
Feature
IP precedence to DSCP map
(DSCP set from IP precedence values)
DSCP to EXP map
(EXP set from DSCP values)
Marked-down DSCP from DSCP map
EXP mutation map
Policers
Policy maps
MPLS flow mask in NetFlow table
MPLS core QoS
MPLS to IP edge QoS
MPLS QoS Commands
PFC3BXL or PFC3B MPLS QoS on the Cisco 7600 series routers supports the following MPLS QoS
commands:
•
•
Cisco 7600 Series Router Cisco IOS Software Configuration Guide, Release 12.2SX
42-16
match mpls experimental topmost
set mpls experimental imposition
Chapter 42
Configuring PFC3BXL or PFC3B Mode MPLS QoS
Default Value
IP precedence 0 = DSCP 0
IP precedence 1 = DSCP 8
IP precedence 2 = DSCP 16
IP precedence 3 = DSCP 24
IP precedence 4 = DSCP 32
IP precedence 5 = DSCP 40
IP precedence 6 = DSCP 48
IP precedence 7 = DSCP 56
DSCP 0–7 = EXP 0
DSCP 8–15 = EXP 1
DSCP 16–23 = EXP 2
DSCP 24–31 = EXP 3
DSCP 32–39 = EXP 4
DSCP 40–47 = EXP 5
DSCP 48–55 = EXP 6
DSCP 56–63 = EXP 7
Marked-down DSCP value equals original DSCP value
(no mark down)
No mutation map by default
None
None
Label + EXP value
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.
If there is a service policy with a set for EXP field, its
Note
EXP field will be placed into the imposed label and
also into the swapped label.
Disposition of topmost label—Exposed EXP field is
•
preserved.
Disposition of only label—Exposed IP DSCP is
•
preserved.
Preserve the exposed IP DSCP
OL-4266-08
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