Module10. Monitoring. MVA Jump Start

Transcription

1 Module10 Monitoring MVA Jump Start

2 Module Overview Voice Quality Concepts Exploring Lync Monitoring Server Components Exploring Lync Monitoring Server Reports RTP and RTCP Collected Information

3 Lesson 1: Voice Quality Concepts What Defines Voice Quality? What Constitutes Good Voice Quality? Common Audio Problems Voice Processing Sender to Receiver (1 of 2) Voice Processing Sender to Receiver (2 of 2)

4 What Defines Voice Quality? Call reliability: Calls get established as expected Calls do not drop midway through Audio quality: Meeting user needs for how audio sounds within a call Who matters: User quality of experience (QoE): Can I make voice calls successfully? Administrator quality of life: Can I discover, diagnose, and resolve voice quality issues effectively?

5 What Constitutes Good Voice Quality? Starting point for most user expectations is the desktop PBX phone: High dial-tone availability Narrow-band audio Good voice quality is highly subjective and context-sensitive: Up to a point, users will accept lower voice quality given other advantages: For example, cellular phones trade mobility for lower call reliability Internet Voice over Internet Protocol (VoIP) users trade price for audio quality Bottom line: Users not noticing voice-quality issues is what defines success

6 Common Audio Problems Acronym AEC = Acoustic Echo Cancellation AGC = Automatic Gain Control VAD = Voice Activity Detection

7 Voice Processing Sender to Receiver (1 of 2) Echo AEC component deals with echo. AEC requires linearity for both timestamp and wave form of the media. If there are too many glitches it could reset AEC. Fidelity Fidelity of audio depends on clarity of the audio quality. Noise Suppression (NS) helps in this area. Also, the Microphone Array component enhances the audio capture quality which in turn enhances the fidelity.

8 Voice Processing Sender to Receiver (2 of 2) Network Network related issue has to do with bandwidth. Bandwidth issues are addressed by VAD. Also codecs and ptime can impact the bandwidth available for Audio. Glitch and Latency Latency can be due to many things for example, OS, the network, AEC, codec, jitter buffer, all of this can contribute to latency

9 Lesson 2: Exploring Lync Monitoring Server Components Monitoring Server Components (1 of 2) Monitoring Server Components (2 of 2) Enabling Monitoring Server Lync Server 2013 Monitoring Management Pack for SCOM Lync Server 2013 SCOM SCOM Monitoring Scenarios

10 Monitoring Server Components (1 of 2) Lync Server 2013 Monitoring Server role: Role has been deprecated Instead, monitoring services are now collocated on each Front End server Monitoring Server databases: Built on Microsoft SQL Server database software Microsoft SQL Server 2008 R2 Enterprise Edition (64-bit) Microsoft SQL Server 2008 R2 Standard Edition (64-bit) Microsoft SQL Server 2012 Enterprise Edition (64-bit) Microsoft SQL Server 2012 Standard Edition (64-bit) SQL Server Reporting Services Required in order to deploy Monitoring Server reports

11 Monitoring Server Components (2 of 2) Data collection agents Unified Data Collection Agent running on each Front-End Server The agent will capture all data required by the different modalities The raw data will persist in the local LYSS* Queue The data will be processed by appropriate data adapters for migration to the respective final destination data store Monitoring Server Reports (optional) * Lync Storage Service: buffers communication between Lync Server and back-end storage (SQL Server and Exchange)

12 Enabling Monitoring Server Unified data collection agents are automatically installed and activated on each Front-End Server You do not need to configure a server to act as the Monitoring Server. Each Front-End Server already functions as a Monitoring Server. You need to install and configure a database to act as the backend data store for monitoring data

13 Lync Server 2013 Monitoring Management Pack for SCOM A comprehensive end-to-end monitoring management pack for System Center Operations Manager (SCOM): SCOM 2007 R2 SCOM 2012 Provides extensive component event and performance monitoring: Full support for Synthetic Transactions against a Lync Server 2013 deployment Uses Monitoring Server CDR and QoE data to generate alerts showing deployment health

14 Lync Server 2013 SCOM What s New? Scenario availability from any location Synthetic transaction logs Increased call reliability coverage Dependency monitoring Enhanced reporting

15 SCOM Monitoring Scenarios Synthetic transactions Call reliability alerts Media quality alerts Component health alerts Dependency health monitoring

16 Lesson 3: Exploring Lync Monitoring Server Reports Peer-to-Peer Activity Summary Report User Registration Report Call Diagnostic Summary Report Media Quality Summary Report Monitoring Database Performance Configuring Monitoring Server Settings Collecting Monitoring Data

17 Peer-to-Peer Activity Summary Report

18 User Registration Report

19 Call Diagnostic Summary Report

20 Media Quality Summary Report

21 Monitoring Database Performance An important consideration is the placement of data and log files Recommended disk configuration: RAID 10 using 6 spindles Placing all database and log files that are used by the Front End Pool onto the RAID drive set. Using the Lync Server Deployment Wizard will result in a configuration that has been tested for good performance All Lync 2013 Pool databases will follow this SQL design

22 Configuring Monitoring Server Settings Lync Server Control Panel, Monitoring and Archiving: Call Detail Reporting tab Enable or disable Call Detail Reporting Configure the Call Detail Reporting purging settings QoE Data tab QoE purging settings Server Application tab Enable or disable QoE Lync Server Management Shell: Set-CsCdrConfiguration Set-CsServerApplicationSetting Set-CsQoEConfiguration

23 Collecting Monitoring Data If monitoring has been enabled for a pool You can disable / enable Call Detail Recording You can disable / enable Quality of Experience data collection Set-CsCdrConfiguration Identity Global EnableCDR $False Set-CsQoEConfiguration Identity Global EnableQoE $False

24 Monitoring Report Types Media Quality Summary Report User Activity Report Quality of Experience Report Call Detail Record Report Location Report Server Performance Report Device Report

25 Lesson 4: RTP and RTCP Collected Information What Data Does the Media Quality Summary Report Collect? Media Quality Summary Report Poor Call Percentage Media Quality Summary Report Poor Call Percentage Detail

26 What Data Does the Media Quality Summary Report Collect? JitterInterArrival: Average network jitter from Real Time Control Protocol (RTCP) statistics. Jitter is the variation in the time between packets arriving, caused by network congestion, timing drift, or route changes. RoundTrip: Round trip time from RTCP statistics. For acceptable quality this should be less than 100ms. PacketLossRate: Average packet (RTP) loss rate during the call OverallAvgNetworkMOS: Average wideband network MOS for the call. This metric depends on the packet loss, jitter, and codec used. The range is [1.0 to 5.0].

27 Media Quality Summary Report Poor Call Percentage

28 Media Quality Summary Report Poor Call Percentage Detail

29 Lync Client Debugging Enable client logging Request log file from user %homepath%\appdata\local\microsoft\lync\tracing Download Lync Server 2013 Debugging Tools Inspect log file using Snooper

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