C
HAPTER
37
| Class of Service Commands
Priority Commands (Layer 3 and 4)
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PRIORITY COMMANDS (LAYER 3 AND 4)
This section describes commands used to configure Layer 3 and 4 traffic
priority mapping on the switch.
map ip dscp (Global
Configuration)
This command enables IP DSCP mapping (i.e., Differentiated Services Code
Point mapping). Use the no form to disable IP DSCP mapping.
SYNTAX
[no] map ip dscp
DEFAULT SETTING
Disabled
COMMAND MODE
Global Configuration
COMMAND USAGE
â—† The precedence for priority mapping is IP Port, IP Precedence or IP
DSCP, and default switchport priority.
â—† IP Precedence and IP DSCP cannot both be enabled. Enabling one of
these priority types will automatically disable the other type.
EXAMPLE
The following example shows how to enable IP DSCP mapping globally:
Console(config)#map ip dscp
Console(config)#
Table 108: Priority Commands (Layer 3 and 4)
Command Function Mode
map ip dscp Enables IP DSCP class of service mapping GC
map ip port Enables TCP/UDP class of service mapping GC
map ip precedence Enables IP precedence class of service mapping GC
map ip dscp Maps IP DSCP value to a class of service IC
map ip port Maps TCP/UDP socket to a class of service IC
map ip precedence Maps IP precedence value to a class of service IC
show map ip dscp Shows the IP DSCP map PE
show map ip port Shows the IP port map PE
show map ip precedence Shows the IP precedence map PE
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