Know How by NETCOR

Trainings

The following line-up lists an overview about our training offers.
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GeNiEnd2End Network Training
This training conveys to network-professionals who use GeNiEnd2End Network for fault and performance analysis.
target audience: Network engineers, IT technicians and administrators, who are responsible for network-administration, network troubleshooting, performance-management

requirements for attending: Participants should cover the following skills:
  • Basics about TCP/UDP/IP protocols
  • Basic knowledge about network troubleshooting

topics:
  • GeNiEnd2End Network introduction
  • How to install and setup GeNiEnd2End Network
    • Deploying Endpoints / Agents
    • Setup 24/7 network performance measurement
    • Configuring Adhoc / FirstAid test
  • Workflow to deploy GeNiJacks
    • End-to-end throughput vs. quality measurement
  • Interpreting the collected performance data
  • Generating on-demand, scheduled reports
  • Configuring GeNiEnd2End QoS
    • Interpreting the measurement results
  • Troubleshooting performance issues with GeNiEnd2End MultiTrace
    • Setup a MultiTrace project
    • How to analyse the MultiTrace output?
  • Advanced configuration
    • Add new scripts / tests
    • What to consider when preparing your individual scripts
    • How to calculate maximum possible Bandwidth by using the Bandwidth-Delay-Product
  • Optional useful tools for debugging

costs: 1300 EURO for this one-day in-house training including Training material in English.
Excluding travel expenses.

In case you require a quote for internal processing we are happily to assist you here. Please fill out the application form.

The content of the training can be adjusted to your individual needs. We are looking forward to receive your registration. By request the training can also be provided by web session.

Please note: The training duration is one day.
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Infinicore FlowDirector / FlowMagic Training
This training is designed to familiarize attendees with the Infinicore products FlowDirector and FlowMagic and their features.
target audience: Network engineers, network designer, IT technicians and administrators who are responsible for network and security analysis.

requirements for attending: Participants should cover the following skill:
  • Basic knowledge about network

topics:

FlowDirector essentials

  • Best practice deploying of the Network Visibility Switch
  • Creation and usage of Domains
    • Tool ports vs. Network ports
    • Regeneration & Aggregation capabilities
    • Filtering scenarios
  • Configuring role based user management
  • Troubleshooting tips

FlowMagic data mining

  • Deploying the Network Visibility Appliance
  • Configure optimal FlowMagic settings
  • FlowMagic workflows
    • Setting up a capture domain
    • Using the Analytics engine to quickly analyze the network and application situations
    • Export Methods to transform traffic of interest
  • Configuring role based user management
  • Troubleshooting tips

costs: 650 EURO for this half-day in-house training, including Training material in English.
Excluding travel expenses.

In case you require a quote for internal processing we are happily to assist you here. Please fill out the application form.

The content of the training can be adjusted to your individual needs. We are looking forward to receive your registration. By request the training can also be provided by web session.

Please note: The training duration is a half-day.
more Details 
Troubleshooting with Wireshark and Co.
This training conveys to network-professionals systematic and methodical approaches for network troubleshooting. The participants learn the prime factors that have impact on the network application performance.
target audience: Network engineers, network designer, IT technicians and administrators who are responsible for the performance from applications and networks.

requirements for attending: Participants should cover the following skills:
  • Basics about TCP/IP and UDP/IP protocols
  • Basic knowledge in network troubleshooting (network- and performance-analysis)

Please bring your own notebook with the latest Wireshark software.

topics: History of Wireshark

Introduction and mode of operation of the Wireshark network analyzer / Workflow data capturing

  • Data sources
    • Data recording in wired, 802.11-based networks
    • Live Capture (Promiscuous Mode) and Live Capture settings
    • Offline data sources
  • Working with Capture Filter and Display Filter
  • Adjust local folders

Philosophy, when, why and how to measure with Wireshark

  • Specific deployment of the network analyzer: When should you measure and when not
  • Field of application of the packet analysis
  • Systematic procedure of an troubleshooting

Packet-analysis in switched and virtual networks

  • SPAN / Mirror-Port, advantages and disadvantages
  • Inline-network measurement through TAPs: breakout, aggregation and filter TAPs
  • Filter and aggregation Network Packet Broker Switches
  • Summarize and modify large trace files

IP basics

  • Structure of the IP header
  • IP addressing / sub netting
  • IP fragmentation
  • Introduction in QoS through DiffServ

TCP basics

  • Structure of the TCP header
  • Functionality TCP Receive Window and Congestion Window (Window Scaling)
  • Overload control / congestion control
    • Algorithm for the overload control
    • Slow Start and Congestion Avoidance
    • Window Scaling
    • Fast-Retransmit and Fast-Recovery
    • Selective ACKs (SACK)
  • The impact from the Bandwidth-Delay-Product on the data throughput

Capture packets with Wireshark

  • Important options for the data recording
  • Data recording with more than one network card
  • Long-term network analysis with Wireshark
  • Data recording with Wireshark in high performance networks, where is the limit?
  • Important information about Checksum Offloading and CRC Errors
  • How does SSL-analysis work?

Customise the user interface the Wireshark network analyzer

  • Fonts, Colors, columns, segmentation of the view
  • Standard parameters, directories, profiles
  • Name resolution
  • Protocol adaption
  • Navigation inside trace files
  • Highlight correctly and effectively, sorting the packets
  • Time visualization: relative vs. Delta
  • Colorization of the conversations
  • Individual color adaptions and regulate the colorization

Use the display filter for effective troubleshooting

  • Filter definition basics
    • Options to define the filter
    • Expressions
    • Expert filter settings
    • Text on Wire filter
    • Export filters
  • What is to consider with filter definitions
  • Typical errors in the filter settings

Utilize the Wireshark statistics for the analysis and the troubleshooting

  • Statistics about connections and endpoints
  • Time values of the IO graph
  • Flow diagrams and determine the response time
  • Time analysis for the CIFS-protocol
  • Extended statistics

Using the IO graph for performance troubleshooting

  • How to use the IO graph during performance troubleshooting
  • How to analyze and detect poor performance
  • What impact does have packet loss on the performance and how is this presented in the IO graph?

Network issues vs. application issues – Narrow down the source of errors

  • Causes of poor performance
    • Best practice approach
    • Interpretation from gathered information to locate the causes
    • Impact of retransmissions on the performance?
  • Typical network problems
  • Correctly interpret and understand packet loss
    • Determine the cause
    • Interpret the packet loss with Wireshark
    • Correctly understand references about the packet loss
    • The duplex mismatch issue is non destructible
  • Determine the delay time
    • Measure with Wireshark the RTT Acked Data delay time
    • Throughput vs. delay time

costs: 2600 EURO for a two days in-house seminar for up to 3 participants including certificate, training material in English.
Excluding travel expenses.

In case you require a quote for internal processing we are happily to assist you here. Please fill out the application form.

The content of the training can be adjusted to your individual needs. We are looking forward to receive your registration.

Please note: The training duration is two days.
more Details 
Troubleshooting with Wireshark and Co. - intensive
This training conveys to network-professionals systematic and methodical approaches for network troubleshooting. The participants learn the prime factors that have impact on the network application performance.
target audience: Network engineers, network designer, IT technicians and administrators who are responsible for the performance from applications and networks.

requirements for attending: Participants should cover the following skills:
  • Basics about TCP/IP and UDP/IP protocols
  • Basic knowledge in network troubleshooting (network- and performance-analysis)

Please bring your own notebook with the latest Wireshark software.

topics: History of Wireshark

Introduction and mode of operation of the Wireshark network analyzer / Workflow data capturing

  • Data sources
    • Data recording in wired, 802.11-based networks
    • Live Capture (Promiscuous Mode) and Live Capture settings
    • Offline data sources
  • Working with Capture Filter and Display Filter
  • Adjust local folders

TCP basics

  • Structure of the TCP header
  • Functionality TCP Receive Window and Congestion Window (Window Scaling)
  • The impact from the Bandwidth-Delay-Product on the data throughput

Capture packets with Wireshark

  • Important options for the data recording
  • Data recording with more than one network card
  • Long-term network analysis with Wireshark
  • Data recording with Wireshark in high performance networks, where is the limit?
  • Important information about Checksum Offloading and CRC Errors
  • How does SSL-analysis work?

Customise the user interface the Wireshark network analyzer

  • Fonts, Colors, columns, segmentation of the view
  • Standard parameters, directories, profiles
  • Name resolution
  • Protocol adaption
  • Navigation inside trace files
  • Highlight correctly and effectively, sorting the packets
  • Time visualization: relative vs. Delta
  • Colorization of the conversations
  • Individual color adaptions and regulate the colorization

Use the display filter for effective troubleshooting

  • Filter definition basics
    • Options to define the filter
    • Expressions
    • Expert filter settings
    • Text on Wire filter
    • Export filters
  • What is to consider with filter definitions
  • Typical errors in the filter settings

Utilize the Wireshark statistics for the analysis and the troubleshooting

  • Statistics about connections and endpoints
  • Time values of the IO graph
  • Flow diagrams and determine the response time
  • Time analysis for the CIFS-protocol
  • Extended statistics

Using IO graph for performance troubleshooting

  • How to use the IO graph during performance troubleshooting
  • How to analyze and detect poor performance
  • What impact does have packet loss on the performance and how is this presented in the IO graph?

Network issues vs. application issues – Narrow down the source of errors

  • Typical network problems
  • Correctly interpret and understand packet loss
    • Determine the cause
    • Interpret the packet loss with Wireshark
    • Correctly understand references about the packet loss
    • The duplex mismatch issue is non destructible
  • Determine the delay time
    • Measure with Wireshark the RTT Acked Data delay time
    • Throughput vs. delay time

costs: 1300 EURO for a two days in-house seminar for up to 3 participants including certificate, training material in English.
Excluding travel expenses.

In case you require a quote for internal processing we are happily to assist you here. Please fill out the application form.

The content of the training can be adjusted to your individual needs. We are looking forward to receive your registration.

Please note: The training duration is one day.
more Details