The introduction of new technologies and applications into modern converged networks brings a new set of challenges to the network administrator. In this course, you will learn the characteristics of real-time multimedia traffic, such as voice, and you\'ll investigate the importance of Quality of Service (QoS) management on the network and learn about the application of wireless technologies to the enterprise. Get an introduction to Cisco\'s Lightweight Wireless Access Point architecture, and cover such areas as Wireless LAN (WLAN) configuration, QoS for wireless, and wireless security techniques for authentication and data encryption. You will also explore the management of WLAN Controllers across the enterprise using Cisco\'s Wireless Control System.
- Cisco hierarchical network model as it pertains to an end-to-end enterprise network
Specific requirements for implementing a VoIP network
- Implementing QoS on a converged network
- Features and functions of the Security Device Manager on Cisco routers
- Key QoS mechanisms used to implement the DiffServ QoS model
- Configure Auto QoS for Enterprise
- Cisco hierarchical network model as it pertains to an end-to-end enterprise network
- Specific requirements for implementing a VoIP network
- Implementing QoS on a converged network
- Features and functions of the Security Device Manager on Cisco routers
- Key QoS mechanisms used to implement the DiffServ QoS model
- Configure Auto QoS for Enterprise
- Cisco VoIP Implementations
- Benefits of VoIP when compared to traditional circuit-switched telephony
- Components of a VoIP network
- Analog connectivity options for legacy equipment to connect to a VoIP network
- Digital interface options to connect VoIP equipment to PBXs or the PSTN
- Three stages of a call
- Introducing VoIP Networks Introduction to IP QoS
- Four key quality issues with converged networks
- How a lack of bandwidth can adversely impact a network and ways to effectively increase bandwidth on a link
- How end-to-end delay can adversely impact a network and ways to effectively reduce delay
- How packet loss can adversely impact a network and ways to manage packet loss
- Defining QoS with respect to traffic in a network
- Three key steps involved in implementing a QoS policy on a network
- How traffic is recognized by type in a network and how those types resolve to QoS traffic classes
- Defining QoS policies after traffic classes have been defined
Implement the DiffServ QoS Model
- Purpose of packet classification
- Purpose of packet marking
- IP packet classification and marking at the data link layer
- Purpose and function of the DiffServ model
- Interoperability between DSCP-based and IP-precedence-based devices in a network
- How DSCP values are determined and assigned to different per-hop behaviors (PHBs)
- Trust boundaries and how they are used with classification and marking
- Exclusive: Queuing mechanisms on Cisco switches
- DSCP settings in the DiffServ Model
- Data link to network layer interoperability between QoS markings
- The term “QoS service class\" and how service classes can be used to create a service policy throughout a network
- How link layer and network layer markings are used to define QoS service classes and the different applications represented by each of these service classes
- Exclusive: How switches preserve or modify Layer 2 and Layer 3 markings
Implement AutoQoS
- Introducing AutoQoS
- How AutoQoS is used to implement QoS policy
- Prerequisites for using AutoQoS and how it is configured on a network using CLI
- Verify that AutoQoS is functioning on a network
- Exclusive: AutoQoS on switches
- Mitigating Common AutoQoS Problems
- QoS technologies that are automatically implemented on the network using AutoQoS
- Known problems with AutoQoS that users have had to contend with
- Using the show commands, isolate areas in the running AutoQoS configuration where the known problems typically occur
- Modify the QoS configuration created by AutoQoS
Implement Wireless Scalability
- WLAN QoS Implementation
- Need for WLAN QoS
- WLAN QoS
- Current WLAN QoS Implementation
- Configure QoS features on lightweight APs using WLC
- Introducing 802.1x
- Need for WLAN security standards and why WLAN security is so important
- Exclusive: Study guide for 802.1x authentication methods
- Difference between authentication and encryption
- How enhanced 802.11 security improves on basic 802.11 security
- Basic concepts of 802.1x authentication
- EAP Cisco Wireless
- EAP-FAST
- EAP-TLS
- EAP-PEAP
- WPA authentication process
Labs
ONT Lab Setup and Initialization Prepare the pod for the remaining lab practice exercises in the course.
- Configure pod routers for basic network connectivity.
- Verify network connectivity using the Cisco IOS ping commands.
Placing and Examining VoIP Calls Place VoIP calls with different codecs and examine call status information and statistics of the IP packets that are exchanged between the workstations.
- Configure CIPC, a software phone application that is installed on a virtual workstation to register with CME, a call agent that runs on an IOS router.
- Place a call from one workstation to another using CIPC with the default codec (G.711). Display voice call statistics on the CIPC screen and obtain network and call information by browsing to the web server of CIPC. Capture RTP packets and analyze them using Ethereal, a network protocol analyzer software.
- Reconfigure CIPC to register with CME using a different device name configured for a different codec (G.729).
- Place a call from one workstation to another using CIPC with the G.729 codec. Use the same tools used on the previous call to note the differences caused by the codec change.
- Exclusive: Twice as many phones per pod as the standard lab, allowing complete pod independence
Case Study: Selecting a Converged Network Strategy Identify the type of QoS problem in progress and suggest a possible solution to mitigate the QoS problem.
- Identify bottlenecks and performance losses in the network.
- Recommend appropriate QoS actions to mitigate specific performance issues.
Introducing MQC and the SDM QoS Wizard Use the MQC to configure a basic service policy and launch the SDM QoS wizard.
- Connect to the equipment and configure the basic MQC components.
- Launch SDM QoS wizard.
Configuring NBAR
- Discover network applications and traffic using NBAR protocol discovery.
- Configure classification of discovered applications using NBAR classification.
- Configure class-based marking.
Configuring FIFO and WFQ Queuing Mechanisms
- Configure FIFO queuing on Cisco routers.
- Configure WFQ queuing on Cisco routers.
- Interpret output of show interface command to monitor and verify the FIFO and WFQ operation on the serial lines.
Configuring LLQ Queuing Mechanism
- Configure LLQ on a Cisco router to provide bandwidth guarantees.
- Use the proper show commands to monitor and verify the LLQ.
- Use Cisco IOS monitoring commands and network connectivity tools (ping) to gather network response time data.
Class-Based Header Compression
- Configure class-based RTP header compression on a PPP link.
- Monitor the operation of class-based RTP header compression.

