CLCOR: Quality of Service in a Cisco UC Network

Cisco    |    Intermediate
  • 10 videos | 42m 28s
  • Includes Assessment
  • Earns a Badge
Rating 4.6 of 14 users Rating 4.6 of 14 users (14)
Knowing how to use Quality of Service (QoS) for network traffic type prioritization is a vital part of a collaboration engineer's skill set. It also plays a crucial role in managing drop-sensitive and delay-sensitive IP network traffic. This course walks through the common problems related to a unified communications (UC) network, such as delay, packet loss, jitter, and bandwidth issues, examining how QoS not only addresses these challenges but ensures seamless transmission of voice and video traffic. Additionally, you'll explore different QoS implementation models and mechanisms, collaboration network DSCP values, and traffic classification and marking techniques. When you've completed this course, you'll be able to use QoS to ensure optimal bandwidth usage based on traffic type and network importance. You'll also be better prepared for the 350-801: Implementing and Operating Cisco Collaboration Core Technologies (CLCOR) certification exam.

WHAT YOU WILL LEARN

  • Discover the key concepts covered in this course
    Describe common problems that can lead to poor voice and video quality, such as latency, packet loss, jitter, and bandwidth issues
    Specify the quality of service (qos) policies, methodologies, and types of traffic landscapes involved in a uc network
    Describe various network traffic types and their characteristics
    Outline the various mechanisms and tools used to implement quality of service (qos)
  • Describe some quality of service (qos) implementation models
    Outline the important dscp values in a collaboration network used for voice, video traffic, and call signaling
    Outline the rationale behind and the techniques involved in classifying and marking quality of service (qos) traffic
    Demonstrate the configuration of different components of quality of service (qos), like class map, policy map, and service policy
    Summarize the key concepts covered in this course

IN THIS COURSE

  • 1m 50s
    In this video, you’ll learn more about the course and the instructor. In this course, you’ll learn about the quality of service in Cisco UC networking that plays a vital role in the IP network, especially when it comes to drop-sensitive and delay-sensitive traffic. You’ll also learn the various components and mechanisms involved in the quality of service, QoS, and implementation in any IP network. FREE ACCESS
  • 7m 32s
    In this video, you’ll learn more about common problems that can lead to poor voice and video quality. This includes things like latency, packet loss, jitter, and other bandwidth issues. Today’s converged network has certain advantages, but it also introduces several issues, because it mixes two very different traffic types. Because data and voice traffic work over the same network, bandwidth issues arise. Voice traffic utilizes a fixed amount of bandwidth per call. FREE ACCESS
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    3.  QoS in a UC Network
    7m 12s
    In this video, you’ll learn more about quality of service. You’ll see quality of service can best be defined as managed unfairness. It’s a method of treating certain traffic preferentially over other types based on business needs and the nature of the traffic flow. Quality of service helps normalize traffic flows and bandwidth consumption, making it more predictable in nature and ensuring optimal bandwidth usage based on the type of traffic and its importance. FREE ACCESS
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    4.  Network Traffic Types and their Characteristics
    1m 7s
    In this video, you’ll learn more about some general Service-Level Agreement recommendations or SLA recommendations for network traffic. For voice traffic, the loss SLA should be less than 1%, latency should be less than 150 ms, and jitter should be less than 30 ms. And for video, the SLA loss should be less than 1%, latency less than 150 ms, and jitter less than 30 ms. There should be a 20% buffer for video traffic. FREE ACCESS
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    5.  QoS Mechanisms, Tools, and Deployment Options
    4m 42s
    In this video, you’ll learn more about the quality of service mechanisms and tools available that can be used to deploy effective Quality of Service, QoS, policies. Classification is identifying packets and grouping them so similar packets receive the same treatment. Marking comes after classification. Packets should be marked with a tag for easy identification by network devices. You’ll want to mark traffic as close to the edge of the network as possible. FREE ACCESS
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    6.  QoS Deployment Models
    6m 41s
    In this video, you’ll learn about the best effort quality of service deployment model. This refers to a deployment that doesn't have any quality of service applied at all. No policies have been defined and no quality of service tools or mechanisms have been utilized. In this model, packets follow a certain strategy. The packet that’s received first is processed and sent out in the same order without any consideration to the type of traffic. FREE ACCESS
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    7.  Key DSCP Values for a UC Network
    1m 27s
    In this video, you’ll learn about some of the most important DSCP values in a collaboration network used for a voice, video traffic, and call signaling scenario. Onscreen, you’ll see a table that showcases some of the commonly used PHB and DSCP values for VoIP traffic. You’ll see the VoIP RTP traffic is regarded as high priority traffic and is given a PHB classification of EF. FREE ACCESS
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    8.  Classification and Marking in QoS
    4m 48s
    In this video, you’ll learn about the various techniques and concepts of classifying and marking traffic in quality of service. You’ll see using Cisco MQC to deploy a DiffServ QoS policy is simple structurally, but can get complicated because of the options available and the permutations and combinations of QoS mechanisms at play. First, you’ll define a class-map. You’ll use the class-map to classify traffic, putting types of traffic in a particular group. FREE ACCESS
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    9.  Configuring and Verifying QoS Components
    6m 37s
    In this video, you’ll watch a demo. You’ll set up low latency queuing on your Cisco IOS routers. To set up low latency queuing, you’ll set up a class-map. You’ll set up multiple class-maps classifying different types of traffic using different mechanisms. Then, you’ll associate those class-maps with a policy-map. After that, you’ll add the policy-map under an interface through a service policy. FREE ACCESS
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    10.  Course Summary
    32s
    In this video, you’ll summarize what you’ve learned in this course. You’ve learned about common problems in a UC network, quality of service mechanisms and the QoS model. You also learned the DSCP values for a UC network, classification and marking in QoS, and configuration. FREE ACCESS

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