CSI-HO-020-D - Explore Packet Analysis with Wireshark - Voice Edition - 2 Day

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CellStream, Inc. – Telecom Consulting and Training!

2-Day Instructor Led Hands On Lab Class
Available in either Web Based delivery or On-Site Delivery
Minimum 10 students – Maximum 16 students

What Students are saying about this class:

“Instructor presents everything very clearly and enthusiastically”
“Like how the instructor periodically comes back to the same core concepts to reinforce them”
“The best part was learning about all of the most useful features and tools in Wireshark, and the hands on exercises in the lab were particularly good at highlighting how to get the most out of the tool. Also Andy Walding is and EXCELLENT instructor he did an excellent job of covering the most important aspects of the tools and protocols and he has a very deep understanding of the subject material.”
“The Online School is a great resource, I’m glad to know that this school exists!”

Course Description:

Knowing the fundamentals of the Wireshark® application and how to diagnose/troubleshoot Voice over IP networks is vital to anyone who is in the networking field today. This insightful and revealing course has been designed to focus on the layered model approach to analyze the world of Voice over IP Networking.

The course is a combination of knowledge training, systems analysis, with hands-on exercises using the Wireshark™ application, backed by CellStream’s experience in voice and data networking over the last 25 years, revealing the details and capabilities in a swift, comprehensive, and understandable way.

“What is Wireshark and why it matters?”
“What must I know about troubleshooting Voice over IP with Wireshark that will impact my network?”
“How does using trace analysis in Wireshark help me as voice communications are transported in IP?”
“How do I maximize my network performance and understand VoIP networking?”

Course Objectives:

The objectives of the course are to develop a “hands-on” skill set targeted at using Wireshark to analyze Voice over IP in the following key areas:

SIP and SDP protocols
RTP and RTCP protocols
Properly configuring Wireshark for VoIP analysis and troubleshooting
Master the Wireshark application as it pertains to VoIP calls, using the layered networking model as a framework of understanding, and voice packet dissection/analysis.

Audience:

The target audience for this course is anyone in Internet Sales, Marketing, Engineering, Test, Customer Support, Technical Marketing, that requires a solid and complete understanding of the fundamental operations of Wireshark, and its support of VoIP analysis, that can be applied to their job function.

Ideal candidates are:

Sales and Technical Marketing professionals that deal with VoIP
Central Office and Field Technicians needing to capture and analyze VoIP
Operations individuals that will provide network configuration and support services
Network Design Engineers that need to understand Wireshark as a voice trouble analysis tool
Technical sales individuals that must be able to correlate features with functionality
Technical marketing individuals that want more than just a basic understanding of Wireshark and VoIP
Network Administrators

Student Comments

“[The instructor] explains things in a way that any of us can understand.”

“Seeing scenarios first hand. Knowing where to look.”

“Like that it is all hands on and not just talking and slideshows.”

Course Prerequisites:

This course is designed to appeal to anyone needing the skills and knowledge to use Wireshark. The ideal student will have some experience in voice networking and operations, however no prior knowledge is necessary.

All students must attend with a lap-top computer running Windows, MAC OSX, or Linux operating systems.

If the course is held at a classroom where computers are available, the Lap-top computer may not be required.

Class size is limited to 24 students.

Course Materials:

Students will be provided with a PDF Course Student Guide. Also, access to analysis captures will be provided via the Online School of Network Sciences.

Course Outline:

Section 1: Course Introduction and Logistics

Section 2: Defining Voice over IP

Functions of POTS/TDM Network Elements
VoIP Components and Functions
Convergence of Voice and Data – the protocol stack
Definition and Challenges of VoIP
How Wireshark supports packet voice
Scanning for VoIP Calls
The VoIP Data Plane
The VoIP Control Plane

Section 3: Introduction to the Wireshark Application

LAB 1: Installation/Upgrade of Wireshark®
Overview of the Wireshark Tool, Tool Bar, user interface
The Wireshark Expert
LAB 2: Basic Capture Lab
Wireshark File Operations and Ring Buffers
LAB 3: Saving and Loading Trace Files
Capture Filters procedures and methods
LAB 4: Wireshark Capture Filter Lab
Display Filters procedures and methods
LAB 5: Wireshark Display Filter Lab
Marking and Ignoring Packets

Section 4: Customizing Wireshark for Voice

Editing program and protocol preferences
Viewing and editing coloring rules
Viewing and Editing Configuration Profiles
LAB 6: Creating an initial Voice Profile for Wireshark

Section 5: Analyzing the VoIP Control Plane

Defining what signaling in VoIP must accomplish and DTMF
Session Initiation Protocol defined
SIP Addressing and components
SIP Presence
SIP Message Types and Operation
SIP Log review
LAB 7: Examining the SIP process in Wireshark
Session Description Protocol
SDP Session and Media Types
SDP Log Review
LAB 8: Examining the SIP process in Wireshark

Section 6: Analyzing the VoIP Data Plane

Defining what the data plane in VoIP must accomplish
Debrief on Speech CODECS
Encoding voice into packets
Real Time Protocol (RTP) Functions and dissection
Source Identifiers in RTP
Payload Types
LAB 9: Examining RTP protocol in Wireshark
Real Time Control Protocol (RTCP) Functions and dissection
RTCP Sender Reports and other types of packets
LAB 10: Examining the RTCP protocol in Wireshark

Section 7: Media Gateways

Defining the purpose of the Gateway function
Gateway Protocol Types
MGCP at a glance
Primary MGCP commands
MGCP Operational Basics and reference information
Session Border Controllers and their functions
LAB11: MGCP Protocol analysis in Wireshark

Section 8: Packet Voice Performance

Packet Voice quality elements
Primary Factors that impact VoIP
VoIP Benchmarks
QoS Defined and the fundamental tools
Packet Classification
Class Selectors and Codepoints
VLAN QoS Marking
Echo defined and analyzed
LAB 12: VoIP QoS Experiment and configuration
VoIP Diagnostic Reference
Example Problems

Course Availability:

View the course calendar and browse for our schedule.

CSI-HO-020-D – Explore Packet Analysis with Wireshark – Voice Edition – 2 Day