Chapter 42 Configuring PFC QoS

Configuring PFC QoS

Note

The eighth queue is the strict priority queue in the output of the show queueing interface command.

 

 

 

This example shows how to verify the configuration:

 

Router# show

queueing interface tengigabitethernet 6/1 begin queue thresh dscp-map

 

queue

thresh

dscp-map

 

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

 

1

1

0 1 2 3 4 5 6 7 8 9 11 13 15 16 17 19 21 23 25 27 29 31 33 39 41 42 43 44 45 47

 

1

2

 

 

 

1

3

 

 

 

1

4

 

 

 

2

1

14

 

 

2

2

12

 

 

2

3

10

 

 

2

4

 

 

 

3

1

22

 

 

3

2

20

 

 

3

3

18

 

 

3

4

 

 

 

4

1

24

30

 

4

2

28

 

 

4

3

26

 

44

51 32 34 35 36 37 38

5

2

5

3

54

61 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63

6

2

6

3

64

71

7

2

 

 

7

3

 

 

7

4

 

 

8

1

40

46

<...Output Truncated...>

Router#

Mapping DSCP Values to the Transmit Strict-Priority Queue

To map DSCP values to the transmit strict-priority queue, perform this task:

 

 

Command

Purpose

 

Step 1

 

 

 

Router(config)# interface tengigabitethernet

Selects the interface to configure.

 

 

slot/port

 

 

 

 

 

Step 2

 

 

 

Router(config-if)#priority-queue dscp-map

Maps DSCP values to the transmit strict-priority queue.

 

 

queue_# dscp1 [dscp2 [dscp3 [dscp4 [dscp5 [dscp6

You can enter multiple priority-queuedscp-map

 

 

[dscp7 [dscp8]]]]]]]

commands to map more than 8 DSCP values to the

 

 

 

 

 

 

strict-priority queue.

 

 

Router(config-if)#no priority-queue dscp-map

Reverts to the default mapping.

 

Step 3

 

 

 

Router(config-if)# end

Exits configuration mode.

 

Step 4

 

 

 

Router# show queueing interface

Verifies the configuration.

 

 

tengigabitethernet slot/port

 

 

 

 

 

 

 

 

 

 

 

 

Cisco 7600 Series Router Cisco IOS Software Configuration Guide, Release 12.2SX

 

 

 

 

 

 

 

 

 

 

 

 

OL-4266-08

 

 

42-103

 

 

 

 

 

Page 102 Page 104
Page 103
Image 103
Cisco Systems OL-4266-08 manual Mapping Dscp Values to the Transmit Strict-Priority Queue, 42-103
Page 102 Page 104

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