PRIORITY COMMANDS

map ip dscp (Interface Configuration)

This command sets IP DSCP priority (i.e., Differentiated Services Code Point priority). Use the no form to restore the default table.

Syntax

map ip dscp dscp-value cos cos-value no map ip dscp

dscp-value- 8-bit DSCP value. (Range: 0-255)

cos-value- Class-of-Service value (Range: 0-7)

Default Setting

The DSCP default values are defined in the following table. Note that all the DSCP values that are not specified are mapped to CoS value 0.

IP DSCP Value

CoS Value

0

0

 

 

8

1

 

 

10, 12, 14, 16

2

 

 

18, 20, 22, 24

3

 

 

26, 28, 30, 32, 34, 36

4

 

 

38, 40, 42

5

 

 

48

6

 

 

46, 56

7

 

 

Command Mode

Interface Configuration (Ethernet, Port Channel)

Command Usage

The precedence for priority mapping is IP Port, IP Precedence or IP DSCP, and default switchport priority.

DSCP priority values are mapped to default Class of Service values according to recommendations in the IEEE 802.1p standard, and then subsequently mapped to the eight hardware priority queues.

This command sets the IP DSCP priority for all interfaces.

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SMC Networks SMC8624/48T manual 268, Map ip dscp Interface Configuration