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Chapter 20
| Quality of Service Commands
cos - A Class of Service value. (Range: 0-7)
dscp - A Differentiated Service Code Point value. (Range: 0-63)
ip-precedence - An IP Precedence value. (Range: 0-7)
vlan - A VLAN. (Range:1-4094)
Default Setting
None
Command Mode
Class Map Configuration
Command Usage
◆
First enter the
class-map
Class Map configuration mode. Then use match commands to specify the fields
within ingress packets that must match to qualify for this class map.
◆
If an ingress packet matches an ACL specified by this command, any deny rules
included in the ACL will be ignored.
◆
If match criteria includes an IP ACL or IP priority rule, then a VLAN rule cannot
be included in the same class map.
◆
If match criteria includes a MAC ACL or VLAN rule, then neither an IP ACL nor IP
priority rule can be included in the same class map.
◆
Up to 16 match entries can be included in a class map.
Example
This example creates a class map called "rd-class#1, " and sets it to match packets
marked for DSCP service value 3.
Console(config)#class-map rd-class#1 match-any
Console(config-cmap)#match ip dscp 3
Console(config-cmap)#
This example creates a class map call "rd-class#2, " and sets it to match packets
marked for IP Precedence service value 5.
Console(config)#class-map rd-class#2 match-any
Console(config-cmap)#match ip precedence 5
Console(config-cmap)#
command to designate a class map and enter the
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