42-25
Cisco 7600 Series Router Cisco IOS Software Configuration Guide, Release 12.2SX
OL-4266-08
Chapter 42 Configuring PFC3BXL or PFC3B Mode MPLS QoS
Configuring PFC3BXL or PFC3B Mode MPLS QoS
Router# show mls qos ip
QoS Summary [IPv4]: (* - shared aggregates, Mod - switch module)
Int Mod Dir Class-map DSCP Agg Trust Fl AgForward-By AgPoliced-By
Id Id
-------------------------------------------------------------------------------
Fa3/27 5 In iptcp 24 2 No 0 0 0
Vl300 5 In x 44 1 No 0 0 0
All 5 - Default 0 0* No 0 3466448105 0
Router#
Router# show policy-map interface fastethernet 3/27
FastEthernet3/27
Service-policy input: ip2tag
class-map: iptcp (match-all)
Match: access-group 101
set mpls experimental 3:
Earl in slot 5 :
0 bytes
5 minute offered rate 0 bps
aggregate-forwarded 0 bytes
class-map: class-default (match-any)
Match: any
Class-map: class-default (match-any)
0 packets, 0 bytes
5 minute offered rate 0 bps, drop rate 0 bps
Match: any
This example shows how to verify the configuration:
Router# show policy map ip2tag
Policy Map ip2tag
Class iptcp
set mpls experimental imposition 3
EXP Value Imposition Guidelines and Restrictions
When setting the EXP value on all imposed labels, follow these guidelines and restrictions:
• Use the set mpls experimental imposition command during label imposition. This command sets
the MPLS EXP field on all imposed label entries.
• The set mpls experimental imposition command is supported only on input interfaces
(imposition).
• The set mpls experimental imposition command does not mark the EXP value directly; instead, it
marks the internal DSCP that is mapped to EXP through the internal DSCP-to-EXP global map.
• It is important to note that classification (based on the original received IP header) and marking
(done to the internal DSCP) do not distinguish between IP-to-IP traffic and IP-to-MPLS traffic. The
commands that you use to mark IP ToS and mark EXP have the same result as when you mark the
internal DSCP.
• To set the pushed label entry value to a value different from the default value during label
imposition, use the set mpls experimental imposition command.
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