Brocade FastIron Ethernet Switch Traffic Management Guide User Manual

Page 20

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Default QoS mappings for FCX platforms, columns 0 to 15 (Continued)

TABLE 2

DSCP value

0

1

2

3

4

5

6

7

8

9

10

11

12

12

14

15

DSCP value

0

1

2

3

4

5

6

7

8

9

10

11

12

12

14

15

Internal forwarding priority

0

0

0

0

0

0

0

0

1

1

1

1

1

1

1

1

Forwarding queue

0

0

0

0

0

0

0

0

1

1

1

1

1

1

1

1

Default QoS mappings for FCX platforms, columns 16 to 31

TABLE 3

DSCP value

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

802.1p (CoS) value

2

2

2

2

2

2

2

2

3

3

3

3

3

3

3

3

DSCP value

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Internal forwarding priority

2

2

2

2

2

2

2

2

3

3

3

3

3

3

3

3

Forwarding queue

2

2

2

2

2

2

2

2

3

3

3

3

3

3

3

3

Default QoS mappings for FCX platforms, columns 32 to 47

TABLE 4

DSCP value

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

802.1p (CoS) value

4

4

4

4

4

4

4

4

5

5

5

5

5

5

5

5

DSCP value

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

Internal forwarding priority

4

4

4

4

4

4

4

4

5

5

5

5

5

5

5

5

Forwarding queue

4

4

4

4

4

4

4

4

5

5

5

5

5

5

5

5

Default QoS mappings for FCX platforms, columns 48 to 63

TABLE 5

DSCP value

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

802.1p (CoS) value

6

6

6

6

6

6

6

6

7

7

7

7

7

7

7

7

DSCP value

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

Internal forwarding priority

6

6

6

6

6

6

6

6

7

7

7

7

7

7

7

7

Forwarding queue

6

6

6

6

6

6

6

6

7

7

7

7

7

7

7

7

Mapping between the DSCP value and forwarding queue cannot be changed. However, mapping
between DSCP values and other properties can be changed as follows:

DSCP to internal forwarding priority mapping - You can change the mapping between the
DSCP value and the internal forwarding priority value from the default values shown in the above
tables. This mapping is used for CoS marking and determining the internal priority when the trust

Quality of Service

18

FastIron Ethernet Switch Traffic Management Guide

53-1003093-03

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