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Cisco ME 3800X and ME 3600X Switch Command Reference
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Chapter 2 Cisco ME 3800X and ME 3600X Switch Cisco IOS Commands
match mpls experimental topmost
match mpls experimental topmost
To identify the outer multiprotocol label switching (MPLS) experimental label to use as the match
criteria for a class, use the mpls experimental topmost command in class-map configuration mode. To
remove the match criteria, use the no form of this command.
match experimental topmost value
no match experimental topmost value
Syntax Description
Defaults No match criteria are defined.
Command Modes Class-map configuration
Command History
Usage Guidelines The match experimental topmost value command specifies a value for the topmost (outer) MPLS label
to use as the match criteria to determine if packets belong to the class specified by the class map.
Before using the match experimental topmost value command, you must enter the class-map global
configuration command to specify the name of the class whose match criteria you want to establish.
You can enter up to eight MPLS EXP label values in one match statement. You can enter multiple lines
to match more than eight values.
In an MPLS network, the IP precedence bits in the packet header are copied into the MPLS EXP fields
at the edge of a network. Instead of overwriting the value in the IP precedence field, you can set the
MPLS experimental bit. You can use different values to mark packets based on characteristics such as
rate or type so that packets have the same priority.
You can use match experimental topmost value classification in input and output policy maps.
You can verify the configuration by entering the show class-map privileged EXEC command.
value A list of up to eight MPLS experimental labels. You can enter multiple lines to
match more than eight MPLS experimental values. This keyword matches only
valid MPLS packets. Separate each value with a space. The range is 0 to 7.
Release Modification
12.2(52)EY This command was introduced.
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