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[NWV_411] NFV Application Troubleshooting Workshop

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Network Functions Virtualization brings IT-ization of Networks to Communication Service Provider networks and with it a completely different paradigm of troubleshooting Network Services (NS) and VNFs. This workshop provides hands-on learning on the tools and techniques for troubleshooting a network service or VNFs in this new environment. The course begins with a summary of fundamental shifts in troubleshooting between physical node based infrastructure versus a cloud infrastructure based NFV Infrastructure. We then conduct an end to end path tracing exercise to understand and reinforce the success path for the service setup. After a discussion on the general concepts of failure and fault isolation the course gets into a scenario based hands-on analysis of various kinds of operation faults and failures for NFV.

Learning Objectives

After completing this course, the student will be able to:
• Isolate issues between VNF and NFVI along organizational ownership
• Interpret network traces, Cloud Infrastructure(NFVI) log files to extract useful information for analysis and problem isolation
• Identify and verify key cloud resource settings for the given application using cloud infrastructure (NFVI) and other tools
• Apply knowledge about the underlying NFVI to analyze VNF impacting failures and recovery mechanisms
• Sketch the redundancy scheme as implemented by the NFVI and troubleshoot redundancy issues
• Identify impact of SDN on NFV related troubleshooting
• Isolate impacted sessions due to failure of a VNF
• Use VNF and NFVI counters, traces and logs to verify the operation of the VNFs
• Interpret and modify various descriptors and repository information
• Draw an end-to-end connectivity diagram with key identifiers in a mixed virtual and physical environment:
- Control
- Plane
- Traffic
- Plane

Intended Audience

This course is designed for professionals in the industry who need to
develop good conceptual understanding of OpenStack.

Course Length

3 Days Instructor Led

Course Outlines / Knowledge Knuggets

1. NFV Architecture and Troubleshooting
1.1. NFV architecture and operations
1.2. Fundamental shift in troubleshooting

2. End-to-End Path Tracing
2.1. Network service/VNF specific end-toned scenario
2.2. Identify the tracing and logging capabilities along the path
2.3. Enable VNF, VIM, OSS and 3rd party tools for tracing and logging
2.4. Capture the logs and traces
2.5. Analyze the success case
2.6. Correlate the VNF and NFVI layer information

3. General Failure Points and Issue Isolation
3.1. Identify the points of failure along the success path
3.2. Inject a failure at selected point depending on the VNF
3.3. Capture logs/traces using VNFs, VIM, OSS and third party tools
3.4. Methodically analyze the information to isolate the issue

4. Redundancy Related Failure
4.1. Force a VNF redundancy failure
4.2. Capture messaging and logs at the NFV layer
4.3. Collect appropriate logs at the VIM layer
4.4. Analyze NFV and VIM layer information to isolate root cause

5. Scale Up/Scale Out Failure
5.1. Create a VNF scale out failure
5.2. Capture logs at the NFV layer
5.3. Collect logs at the VIM layer
5.4. Analyze both NFV and VIM layer info to isolate root cause
5.5. Modify descriptor or VIM configuration to resolve the issue

6. Link Failure
6.1. Induce a link failure
6.2. Capture logs at the NFV layer
6.3. Collect logs at the VIM layer
6.4. Analyze both NFV and VIM layer info to isolate root cause
6.5. Create a work around

7. Configuration Related Failure
7.1. Inject a configuration failure at NFVI layer
7.2. Capture logs at the NFV layer
7.3. Collect logs at the VIM layer
7.4. Analyze both NFV and VIM layer info to isolate root cause
7.5. Develop a workaround solution

(See full outline on PDF)


- Self-paced, animated, and interactive

- $150/each course for 6 month license

- Immediate online access upon purchase

- Flexible way to take training at any hour

- Online training transcript available

- Electronic certificates at completion

- Full list of courses at


For any additional questions,
please contact Mr. Rod Marckese
at +1-972-664-0727 x246 or

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