Chapter 42 Configuring PFC QoS

Configuring PFC QoS

•(Optional) For traffic that exceeds the CIR, you can specify an exceed action as follows:

–For marking without policing, you can enter the transmit keyword to transmit all matched out-of-profile traffic.

–The default exceed action is drop, except with a maximum_burst_bytes parameter (drop is not supported with a maximum_burst_bytes parameter).

Note When the exceed action is drop, PFC QoS ignores any configured violate action.

–You can enter the policed-dscp-transmitkeyword to cause all matched out-of-profile traffic to be marked down as specified in the markdown map.

Note When you create a policer that does not use the pir keyword and the maximum_burst_bytes parameter is equal to the normal_burst_bytes parameter (which is the case if you do not enter the maximum_burst_bytes parameter), the exceed-actionpoliced-dscp-transmitkeywords cause PFC QoS to mark traffic down as defined by the policed-dscpmax-burstmarkdown map.

•(Optional—Not supported with the flow keyword) for traffic that exceeds the PIR, you can specify a violate action as follows:

–For marking without policing, you can enter the transmit keyword to transmit all matched out-of-profile traffic.

–The default violate action is equal to the exceed action.

–You can enter the policed-dscp-transmitkeyword to cause all matched out-of-profile traffic to be marked down as specified in the markdown map.

This example shows how to create a policy map named max-pol-ipp5that uses the class-map named ipp5, which is configured to trust received IP precedence values and is configured with a maximum-capacity aggregate policer and with a microflow policer:

Router# configure terminal

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

Router(config)# policy-map max-pol-ipp5

Router(config-pmap)# class ipp5

Router(config-pmap-c)# trust ip-precedence

Router(config-pmap-c)#police 2000000000 2000000 conform-action set-prec-transmit 6 exceed-action policed-dscp-transmit

Router(config-pmap-c)#police flow 10000000 10000 conform-action set-prec-transmit 6 exceed-action policed-dscp-transmit

Router(config-pmap-c)# end

Verifying Policy Map Configuration

To verify policy map configuration, perform this task:

 

 

Command

Purpose

 

Step 1

 

 

 

Router(config-pmap-c)# end

Exits policy map class configuration mode.

 

 

 

Note Enter additional class commands to create

 

 

 

additional classes in the policy map.

 

Step 2

 

 

 

Router# show policy-map policy_name

Verifies the configuration.

 

 

 

 

 

 

 

 

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

 

 

 

 

 

 

 

 

 

 

 

 

OL-4266-08

 

 

42-79

 

 

 

 

 

Page 78 Page 80
Page 79
Image 79
Cisco Systems OL-4266-08 Verifying Policy Map Configuration, To verify policy map configuration, perform this task, 42-79
Page 78 Page 80

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.

Technologically, OL-4266-08 covers a wide array of essential concepts, including IP telephony, voicemail, and collaborative tools. Candidates learn about the architecture of unified collaboration systems, involving integration with routing and switching networks. Additionally, it delves into security protocols to ensure secure transmissions of voice and video data, thereby protecting sensitive corporate communication.

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.
Top Page Image Contents