Cisco ME 3600X, Command Reference Manual

Page: 197 / 628

2-173
Cisco ME 3800X and ME 3600X Switch Command Reference
OL-28238-01
Chapter 2 Cisco ME 3800X and ME 3600X Switch Cisco IOS Commands
match ip precedence
match ip precedence
To identify IPv4 precedence values as match criteria for a class, use the match ip precedence command
in class-map configuration mode. To remove the match criteria, use the no form of this command.
match ip precedence ip-precedence-list
no match ip precedence ip-precedence-list
Syntax Description
Defaults
No match criteria are defined.
Command Modes
Class-map configuration
Command History
Usage Guidelines The match ip precedence command specifies an IPv4 precedence value to use as the match criteria to
determine if packets belong to the class specified by the class map.
The precedence values are used as marking only. In this context, the IP precedence values have no
mathematical significance. For example, the precedence value of 2 is not greater than 1, but merely
indicates that a packet marked with a value of 2 is different than one marked with a value of 1. You define
the treatment of these marked packets by setting QoS policies in policy-map class configuration mode.
Before using the match ip precedence 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 four IPv4 precedence values in one match statement. For example, if you wanted the
IP precedence values of 0, 1, 2, or 7, enter the
match ip precedence 0 1 2 7 command. The packet must
match only one (not all) of the specified IP precedence values to belong to the class.
ip precedence
ip-precedence-list
List of up to four IPv4 precedence values to match against incoming packets.
Separate each value with a space. The range is 0 to 7. You enter these
keywords for precedence:
•
0 to 7 —Enter up to 4 precedence values separated by spaces.
•
critical —Match packets with critical precedence (5).
•
flash —Match packets with flash precedence (3).
•
flash-override —Match packets with flash override precedence (4).
•
immediate —Match packets with immediate precedence (2).
•
internet —Match packets with internetwork control precedence (6).
•
network —Match packets with network control precedence (7).
•
priority —Match packets with priority precedence (1).
•
routine —Match packets with routine precedence (0).
Release Modification
12.2(52)EY This command was introduced.