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Lync Server

20335B: Lync Network Readiness Assessment

Module 1: Overview of Network Assessments

This module will introduce you to the goals and considerations that a proactive network readiness assessment takes into account, as well as provide you with the key concepts of networking and telephony that relate to a Lync network readiness assessment.
 
Before starting a network readiness assessment, it is important to understand basic networking concepts, but it is even more important to identify the reasons to assess your network. The information that you gain from the assessment will inform decisions related to implementing a new product, such as Lync 2013.
 
A network readiness assessment is an important proactive step toward implementing and deploying new technology in your network. Conducting such an assessment using reliable tools and techniques can help identify issues that your organization might not even be aware of, ranging from possible bottlenecks, to latency problems, to assessing the current level of your network’s readiness, and serving the future needs of your organization.
 
Lessons

  • Network Assessment Overview
  • Key Concepts for Network Assessment

After completing this module, students should have the knowledge and skills to:

  • Explain network readiness assessment goals and activities.
  • Apply key concept of networking to a network assessment.
Module 2: Introducing the Microsoft Lync Network Readiness Assessment Methodology
The Microsoft Lync Network Readiness Assessment methodology (MLNRAM) is comprised of four different phases: discovery, modeling, traffic simulation, and recommendations. This module provides an overview on each phase in this methodology.
 
The objective of the network assessment is to provide insight into the readiness of the network infrastructure for supporting an excellent user experience, while using Lync Server for Real-time Communications (RTC). The network assessment helps to answer the critical pre-deployment question, "Is my network infrastructure ready to support Lync Server?”
Lessons

  • Microsoft Lync Network Readiness Assessment Methodology Overview
  • Discovery Phase
  • Modeling Phase
  • Traffic Simulation Phase
  • Recommendations Phase

Lab : Discussion

  • Discuss Your Network Assessment Experiences

After completing this module, students will be able to:

  • Explain the four major phases of the Microsoft Lync Readiness Assessment methodology.
  • Identify the objectives and goals of each phase of the network assessment.
  • Discuss real-world experiences with network assessments, processes, and methodologies.
Module 3: Network Discovery
The objective of the Discovery phase is to gain a full understanding of all aspects of the network infrastructure, the existing telephony infrastructure, the conferencing infrastructure, and details of the planned deployment. You should understand the physical topology of the customer’s network, the size and type of their most common WAN connections, and the current levels of data traffic for each site. It is important to remember that all discovery sessions are unique.
 
This module examines several of the key goals of the Discovery phase, such as revealing potential sources of network impairments, raising awareness of Lync Server traffic flows, confirming the simulation probe placement choice for the traffic simulation, and offering guidelines for network devices.
Lessons

  • Documenting Current Network Infrastructure
  • Documenting Current Client Devices
  • Locating Network Impairments and Roadblocks
  • Overview of Transport Reliability IP Probe Tools

Lab : Using Network Assessment Discovery Tools

  • Reviewing the Contoso IT Infrastructure
  • Document Discovery Findings
  • Start the Network Emulator for Windows Toolkit

After completing this module, students will be able to:

  • Discover current network infrastructure and utilization.
  • Identify client and Lync devices.
  • Locate network impairments and roadblocks.
  • Use common network assessment tools.
Module 4: Analyzing Server, Network, and Client Health
The deployment and monitoring portion of the Lync Server lifecycle is where you keep the Lync Server infrastructure running in optimal condition. If planning was properly handled, you will not be expected to fix a backlog of infrastructure issues. Instead, you will be watching for new signs of service degradation and usage trends.
 
During the Discovery phase of your network assessment, you will use monitoring and managing methods to determine server, network, and client health. This information will help you pose your recommendations to the customer, as well as supply valuable information for the next phases of your network assessment.
Lessons

  • Determining Server, Network and Client Health Indicators
  • Monitoring and Managing Methods

Lab : Analyzing Monitoring Data

  • Start the Performance Monitor System Data Collector Sets
  • Generating Network Load Tests
  • Review the Performance Monitor System Health Data
  • Continue Discovery Findings Documentation

After completing this module, students will be able to:

  • Determine server, network, and client health.
  • Use monitoring and managing methods to analyze network data.
Module 5: Usage and Traffic Modeling
Usage and traffic modeling is a key part of a network readiness assessment because you need to know the usage patterns and the actual traffic on the network in order to properly estimate the bandwidth Lync or Unified Communications (UC) might consume on the network. This module introduces the different usage scenarios, usage models, and personas needed for usage modeling. It covers the process of calculating expected data usage for traffic modeling. Modeling tools, such as the Lync Bandwidth Calculator and Microsoft Lync Server 2013 Planning Tool, will also be covered.
Lessons

  • Performing Usage Modeling
  • Performing Traffic Modeling
  • Lync Bandwidth Calculator

Lab : Using Modeling Tools

  • Entering information into the Lync Bandwidth Calculator
  • Reviewing Calculated Results
  • Using the Lync Server 2013, Planning Tool
  • Designing Simulations Based on Modeling Tool Results

After completing this module, students will be able to:

  • Perform usage modeling and traffic modeling.
  • Use the Microsoft Lync Server 2013 Planning Tool.
  • Use the Lync Bandwidth Calculator.
Module 6: Performing Traffic Simulations
Traffic simulation is an important step in a network readiness assessment because it provides a way of predicting how a network will perform. This module covers how to perform traffic simulations to understand traffic patterns on a network. By sending representative real-time communication (RTC) traffic through a network, a full readiness picture can be determined.
Lessons

  • Overview of Traffic Simulations
  • Lync Server 2013 Stress and Performance Tool

Lab : Using Network Readiness Tools to Validate the Network

  • Starting the Performance Monitor System Data Collector Sets
  • Using the Lync Server Stress and Performance Tools
  • Reviewing the Performance Monitor Lync Server Health Data
  • Analyzing Monitoring Reports
  • Performing Traffic Simulations Using the Iperf Tool

After completing this module, students will be able to:

  • Perform a traffic simulation as part of a network readiness assessment.
  • Use traffic simulation best practices.
  • Use the Lync Server Stress and Performance Tool to perform stress and performance tests.
Module 7: Understanding Network Controls and Solutions
Customers are often not equipped to manage the complexity of Lync. In addition to completing a network assessment, you can take many proactive steps to prevent the most common scenarios that generate support calls, and potentially leave Lync functionality compromised and unreliable. This module covers the various solutions that might be recommended to meet business and technical requirements to achieve network readiness.
Lessons

  • Quality of Service
  • Bandwidth Management with Call Admission Control
  • Troubleshooting and Diagnostics Tools

Lab : Understanding and Verifying Quality of Service (QoS)

  • Configuring Quality of Service (QoS)
  • Verifying Quality of Service Application

Lab : Using Call Admission Control to Manage Bandwidth Usage

  • Reviewing Call Admission Control to Manage Bandwidth
  • Verifying Call Admission Control is Being Applied

Lab : Troubleshooting

  • Using the Lync Centralized Logging Service
  • Using Synthetic Transactions for Monitoring
  • Using Synthetic Transactions
  • Fixing Network Link Bandwidth Issues

After completing this module, students will be able to:

  • Describe Quality of Service.
  • Implement bandwidth management with Call Admission Control.
  • Use troubleshooting and diagnostic tools.
Module 8: Making Recommendations for Network Readiness
After completing the previous phases of a network readiness assessment, it is now time for recommending areas to be investigated. This could include implementing different software based strategies, such as Quality of Service (QoS) or call admission control (CAC). It could also include networking and topology changes or hardware and device changes. Sometimes it may just be troubleshooting and fixing problems with the current network or configuration. This module examines how to analyze the data that you compile, how to make recommendations based on that data, and how to create reports based on those recommendations.
Lessons

  • Forming and Documenting Recommendations

Lab : Making Network Readiness Assessment Recommendations

  • Write a Network Assessment Report for Contoso
  • Discussion: Network Readiness Assessment Report

After completing this module, students will be able to:

  • Form recommendations based on network assessment analysis.
  • Document and summarize their recommendations for network preparedness.

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