Chapter 42 Configuring PFC QoS

Configuring PFC QoS

 

Maximum

Burst

Policed-dscp map:

 

(dscp= d1d2)

 

d1 :

d2 0

1

2

3

4

5

6 7

8

9

 

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

 

0

:

00

01

02

03

04

05

06 07

08

09

 

1

:

10

11

12

13

14

15

16 17

18

19

 

2

:

20

21

22

23

24

25

26 27

28

29

 

3

:

30

31

32

33

34

35

36 37

38

39

 

4

:

40

41

42

43

44

45

46 47

48

49

 

5

:

50

51

52

53

54

55

56 57

58

59

 

6

:

60

61

62

63

 

 

 

 

 

<

...Output Truncated...

>

 

 

 

 

 

Router#

 

 

 

 

 

 

 

 

 

 

Note In the Policed-dscp displays, the marked-down DSCP values are shown in the body of the matrix; the first digit of the original DSCP value is in the column labeled d1 and the second digit is in the top row. In the example shown, DSCP 41 maps to DSCP 41.

Mapping Internal DSCP Values to Egress CoS Values

To configure the mapping of the DSCP value that PFC QoS uses internally on the PFC to the CoS value used for egress LAN port scheduling and congestion avoidance, perform this task:

 

Command

Purpose

Step 1

 

 

Router(config)# mls qos map dscp-cos dscp1 [dscp2

Configures the internal DSCP to egress CoS map.

 

[dscp3 [dscp4 [dscp5 [dscp6 [dscp7 [dscp8]]]]]]]

 

 

to cos_value

 

 

Router(config)# no mls qos map dscp-cos

Reverts to the default map.

Step 2

 

 

Router(config)# end

Exits configuration mode.

Step 3

 

 

Router# show mls qos maps

Verifies the configuration.

 

 

 

When configuring the internal DSCP to egress CoS map, note the following information:

•You can enter up to 8 DSCP values that PFC QoS maps to a CoS value.

•You can enter multiple commands to map additional DSCP values to a CoS value.

•You can enter a separate command for each CoS value.

This example shows how to configure internal DSCP values 0, 8, 16, 24, 32, 40, 48, and 54 to be mapped to egress CoS value 0:

Router# configure terminal

Enter configuration commands, one per line. End with CNTL/Z.

Router(config)# mls qos map dscp-cos 0 8 16 24 32 40 48 54 to 0

Router(config)# end

Router#

 

 

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

 

 

 

 

 

 

OL-4266-08

 

 

42-89

 

 

 

 

 

Page 88 Page 90
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Image 89
Cisco Systems OL-4266-08 Mapping Internal Dscp Values to Egress CoS Values, Configures the internal Dscp to egress CoS map
Page 88 Page 90

OL-4266-08 specifications

Cisco Systems OL-4266-08 is a robust and versatile certification that focuses on the essentials of implementing and troubleshooting Cisco collaborations solutions. As enterprises increasingly rely on unified communications, having professionals who are knowledgeable in the latest Cisco technologies becomes a necessity. This certification is part of the Cisco Certified Network Associate (CCNA) program, which serves as a foundational stepping stone for individuals aspiring to build a career in networking and collaboration technologies.

One of the main features of OL-4266-08 is its emphasis on collaboration foundations, which includes an understanding of voice, video, messaging, and conferencing technologies. Professionals who obtain this certification demonstrate proficiency in deploying, configuring, and troubleshooting Cisco collaboration solutions like Cisco Unified Communications Manager and Cisco Webex. This knowledge is critical as businesses seek to enhance communication and productivity through integrated systems.

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In terms of characteristics, OL-4266-08 is designed to be both comprehensive and practical. The certification emphasizes hands-on experience, which is essential for understanding real-world applications of Cisco technologies. The coursework provides extensive exposure to simulations and labs that mimic actual network environments. This hands-on approach enables candidates to troubleshoot issues effectively using Cisco's troubleshooting tools and methodologies.

Moreover, the certification aligns with industry standards, ensuring that individuals gain relevant and in-demand skills. Given the evolving landscape of network technologies, OL-4266-08 prepares individuals for future growth and specialization in various areas, including cloud collaboration and Internet of Things (IoT) communications.

In conclusion, Cisco Systems OL-4266-08 equips networking professionals with the necessary skills to implement and support Cisco collaboration solutions. The focus on hands-on experience, along with in-depth coverage of technology and security protocols, makes it a valuable certification in the fast-paced world of network communications. With the rise of remote work and digital collaboration, this certification is pivotal for anyone looking to enhance their career in networking and technology.
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