SMC Networks SMC6824M manual 211, Mapping Dscp Priority, IP Dscp Value CoS Value

Models: SMC6824M

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CLASS OF SERVICE CONFIGURATION

Console#show map ip precedence ethernet 1/5

4-267

Precedence

mapping status: disabled

 

Port

Precedence COS

 

---------

---------- ---

 

Eth 1/ 5

0

0

 

Eth 1/ 5

1

0

 

Eth 1/ 5

2

2

 

Eth 1/ 5

3

3

 

Eth 1/ 5

4

4

 

Eth 1/ 5

5

5

 

Eth 1/ 5

6

6

 

Eth 1/ 5

7

7

 

Console#

 

 

 

Mapping DSCP Priority

The DSCP is six bits wide, allowing coding for up to 64 different forwarding behaviors. The DSCP replaces the ToS bits, and it retains backward compatibility with the three precedence bits so that non-DSCP compliant, ToS-enabled devices, will not conflict with the DSCP mapping. Based on network policies, different kinds of traffic can be marked for different kinds of forwarding. 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.

Table 3-15 Mapping DSCP Priority

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

3-211

Page 267
Image 267
SMC Networks SMC6824M manual 211, Mapping Dscp Priority, IP Dscp Value CoS Value