1. Lync Network Readiness Assessment Exam 74-335
Brian Ricks | Principal Consultant, BriComp Computers, LLC
Thom Foreman | Infrastructure Consultant, Wadeware, LLC

2. The Simulation Phase

3. Meet Brian Ricks | @bricomp
4/6/2019
Meet Brian Ricks
Principal Consultant, BriComp Computers, LLC
Unified Communications Architect
Microsoft Certified Solutions Master
Microsoft MVP since 2006
Enterprise Microsoft collaboration solution design, development, configuration, administration & maintenance
More than 20 years experience in IT industry
Network Infrastructure Corp., Resolute, Phelps Dodge
Independent since 2009
Fill in with your title and other info about you.
© 2012 Microsoft Corporation. All rights reserved. Microsoft, Windows, and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.
The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

4. Meet Thom Foreman Infrastructure Consultant – Course Developer
4/6/2019
Meet Thom Foreman
Infrastructure Consultant – Course Developer
At Wadeware, LLC since 2006
Main focus on Lync and MS products
Created learning for Microsoft, including:
Masters, Ignites, MSL/LeX, TAP/RDP, Internal and more
MCSE, MCSA, MCITP, MCTS, MCP, CompTIA’s as well
More than 15 years experience in IT industry
Wife and 2 kids, live in Shoreline, WA
Fill in with your title and other info about you.
© 2012 Microsoft Corporation. All rights reserved. Microsoft, Windows, and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.
The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

5. Topics The Simulation Phase 01 | Overview of Traffic Simulations
02 | Lync Server 2013 Stress and Performance Tool
03 | Key Health Indicators and Call Quality Metrics

6. Setting Expectations Target Audience
4/6/2019
Setting Expectations
Target Audience
Professionals with data networking experience who take part in the planning, design, and deployment of Lync UC Solutions in the enterprise.
Candidates must have strong knowledge of data networking, an industry or vendor qualification, and be able to translate business requirements into technical and networking requirements for a UC solution
Suggested Prerequisites/Supporting Material
Lync Server Networking Guide V2
Visit
This slide could potentially change for every course.
© 2012 Microsoft Corporation. All rights reserved. Microsoft, Windows, and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.
The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

7. Overview of Traffic Simulations

8. Overview of Traffic Simulations
20335
06: Performing Traffic Simulations
Overview of Traffic Simulations
Traffic simulation best practices

9. Traffic Simulation Tools
20335
06: Performing Traffic Simulations
Traffic Simulation Tools
Generate real audio and video RTP/RTCP traffic
Centrally manage the probes
Mark traffic with Quality of Service (QoS) markings
Collect and graph the five baseline network characteristics
Support all five baseline characteristics:
One-way network delay
Average jitter
Maximum jitter
Average packet loss
Burst packet loss (peak consecutive packets lost)

10. Simulating Bandwidth Requirements
20335
06: Performing Traffic Simulations
Simulating Bandwidth Requirements
A well-designed traffic simulation sampling scenario enables you to:
Determine if congestion patterns develop
Determine if the QoS policies are effective and applied correctly
Gauge network response during congestion periods:
For example, dropped packets, delay and jitter effects, and so on

11. Identifying Sites for Traffic Simulation
20335
06: Performing Traffic Simulations
Identifying Sites for Traffic Simulation
Take the following into consideration:
There is always a limit:
The standard network assessment is scoped for up to 20 sites
Make sure to test in representative sites
Do not test for insufficient bandwidth if this is already known
Central sites should always host a simulation endpoint
Focus on the possible weak parts of the network:
Where the Modeling phase revealed the link bandwidth might be barely enough
Connections traveling between continents that are prone to packet loss and delay
Connections with expected high utilization (users talk often)
Where there is existing knowledge of poor quality WAN links
User input or preferences other than technical nature:
For example: ”That is the site where the chief executive officer (CEO) is based”

12. Lync Server Real-Time Scenarios to Be Simulated
20335
06: Performing Traffic Simulations
Lync Server Real-Time Scenarios to Be Simulated
Peer traffic should be evenly distributed between other remote location probes:
Audio traffic volume
Video traffic volume
Conference traffic should be between the remote probe and the data center probe:
PSTN traffic should be between the remote probe and the data center probe:

13. Preparing for Traffic Simulation
20335
06: Performing Traffic Simulations
Preparing for Traffic Simulation
Verify site selection
Decide on traffic distribution and allocation (flows and amount of traffic to simulate)

14. Traffic Simulation Best Practices
20335
06: Performing Traffic Simulations
Traffic Simulation Best Practices
It is important to:
Verify site selection based on anticipated Lync Server real-time services
Decide the level of traffic distribution and allocation required
Know key sites and bandwidth for traffic scenarios
Keep the list of sites to 20 or less
Test representative sites that will use Lync Server RTC services
Focus on potential network weak points
Determine potential packet loss and delay for connections
Inquire about existing organizational knowledge regarding poor quality
Consider other site selection input other than technical
Consider traffic distribution and allocation between sites
Perform initial modeling with the Lync Bandwidth Calculator

15. Lync Server 2013 Stress and Performance Tool

16. Lync Server 2013 Stress and Performance Tool
20335
06: Performing Traffic Simulations
Lync Server 2013 Stress and Performance Tool
Lync Server 2013 Stress and Performance Tool Package

17. Lync Server 2013 Stress and Performance Tool Package
20335
06: Performing Traffic Simulations
Lync Server 2013 Stress and Performance Tool Package
The Lync Server 2013 Stress and Performance Tool (LSS) simulates the following types of user loads:
Instant messaging (IM) and presence
Audio/Video/Multi-View conferencing
Application sharing
Voice over IP (VoIP), including public switched telephone network (PSTN) simulation
Web Access Client conferencing
Conferencing Attendant
Response Groups
Distribution list expansion
Address book download and address book query
E911 calls and Location Profile

18. Key Health Indicators and Call Quality Metrics

19. Lync Server 2013 KHIs Front End Servers Back End Servers MCUs
20335
06: Performing Traffic Simulations
Lync Server 2013 KHIs
Front End Servers
Queue Latency, Incoming Message Processing Time, Authentication System Errors/Sec
Back End Servers
Page life expectancy, Batch Requests/Sec
MCUs
IMMCU, DATAMCU, AVMCU and ASMCU Health State,
Web Components
Requests Rejected, Failed Search Requests/Sec

20. Lync Server 2013 KHIs Conferencing Monitoring Mobile Mediation Servers
20335
06: Performing Traffic Simulations
Lync Server 2013 KHIs
Conferencing
Incoming Calls Per Sec, Notifications in Processing, Allocation Latency
Monitoring
Queue Latency, Dropped messages from MQ,
Mobile
Push Notifications Requests Failed/Sec, Requests Failed/Sec
Mediation Servers
Media Connectivity Check Failure, Candidates Missing
Edge
Bad Requests Received, Authentication Failures/Sec, Packets Dropepd/Sec

21. Lync Server 2013 Monitoring Reports
20335
06: Performing Traffic Simulations
Lync Server 2013 Monitoring Reports
Call Quality Metrics
Jitter
Packet Loss
Round Trip
Degradation (MOS)
Healer Concealed Ratio
Healer Stretched Ratio
Healer Compressed Ratio

22. DEMO: KHIs and QoE

23. What We Learned – Module 1: Microsoft Dynamics GP Overview
Understand some of the key functionality available in Microsoft Dynamics GP How transactions flow and integration occurs within the application Identify options for user’s to personalize how the product works Understand basic security options in Microsoft Dynamics GP