Specifications

set mpls experimental topmost
MP-418
Cisco IOS Multiprotocol Label Switching Command Reference
January 2010
If you specify the qos-group category but do not specify the table keyword and the applicable
table-map-name argument, the default action will be to copy the value associated with the qos-group
category as the MPLS EXP topmost value. For instance, if you configure the set mpls experimental
topmost qos-group command, the QoS group value will be copied and used as the MPLS EXP topmost
value.
The valid value range for the MPLS EXP topmost value is a number from 0 to 7. The valid value range
for the QoS group is a number from 0 to 99. Therefore, when configuring the set mpls experimental
topmost qos-group command, note the following points:
• If a QoS group value falls within both value ranges (for example, 6), the packet-marking value will
be copied and the packets will be marked.
• If a QoS group value exceeds the MPLS EXP topmost range (for example, 10), the packet-marking
value will not copied and the packet will not be marked. No action is taken.
Examples The following example shows how to set the MPLS EXP value to 3 in the topmost label of an input or
o
utput interface:
Router(config-pmap)# set mpls experimental topmost 3
The following example shows how to create the policy map named policy1 to use the packet-marking
values defined in a table map named table-map1. The table map was created earlier with the table-map
(value mapping) command. For more information about the table-map (value mapping) command, see
the table-map (value mapping) command page.
The following example shows how to set the MPLS EXP value according to the QoS group value defined
in
table-map1.
Router(config)# policy-map policy1
Router(config-pmap)# class class-default
Router(config-pmap-c)# set mpls experimental topmost qos-group table table-map1
Router(config-pmap-c)# exit
Related Commands Command Description
match mpls experimental
to
pmost
Matches the MPLS EXP field value in the topmost label.
set mpls experimental
impo
sition
Sets the value of the MPLS EXP field on all imposed label entries.
set qos-group Sets a group ID that can be used later to classify packets.
show table-map Displays the configuration of a specified table map or all table maps.
table-map (value mapping) Creates and configures a mapping table for mapping and converting
one
packet-marking value to another.