SD-WAN Classes — All you need to know about SD-WAN

SD-WAN is a software-defined approach to managing the WAN.

Key advantages include:

  • Reducing costs with transport independence across MPLS, 4G/5G LTE, and other connection types.
  • Improving application performance and increasing agility.
  • Optimizing user experience and efficiency for software-as-a-service (SaaS) and public-cloud applications.
  • Simplifying operations with automation and cloud-based management.

Video Link below :

Implementing Cisco SD-WAN 300-415 (ENSDWI) — Full Course

Cisco SDWAN Troubleshooting Use Cases Plus Interview Questions — Interview Prime

Cisco SDWAN Viptela Day 03 – ZTP & OMP

Cisco SDWAN Viptela Day 02 – Home Lab

CCNP SD-WAN 300-415:ENSDWI – Implementing Cisco SDWAN Solutions – Full Course

4 Hours Cisco Cloud followed by 4 Hours of Python Programming

CCNP Enterprise -300-415 ENSDWI — Implementing Cisco SD-WAN

sdwan troubleshooting

STEPS TO TROUBLESHOOT 

Step 1 When analyzing a network problem, make a clear problem statement. You should define the problem in terms of a set of symptoms and potential causes. To properly analyze the problem, identify the general symptoms and then ascertain what kinds of problems (causes) could result in these symptoms. For example, hosts might not be responding to service requests from clients (a symptom). Possible causes might include a misconfigured host, bad interface cards, or missing router configuration commands.

Step 2 Gather the facts that you need to help isolate possible causes. Ask questions of affected users, network administrators, managers, and other key people. Collect information from sources such as network management systems, protocol analyzer traces, output from router diagnostic commands, or software release notes.

Step 3 Consider possible problems based on the facts that you gathered. Using the facts, you can eliminate some of the potential problems from your list. Depending on the data, for example, you might be able to eliminate hardware as a problem so that you can focus on software problems. At every opportunity, try to narrow the number of potential problems so that you can create an efficient plan of action.

Step 4 Create an action plan based on the remaining potential problems. Begin with the most likely problem, and devise a plan in which only one variable is manipulated. Changing only one variable at a time enables you to reproduce a given solution to a specific problem. If you alter more than one variable simultaneously, you might solve the problem, but identifying the specific change that eliminated the symptom becomes far more difficult and will not help you solve the same problem if it occurs in the future.

Step 5 Implement the action plan, performing each step carefully while testing to see whether the symptom disappears.

Step 6 Whenever you change a variable, be sure to gather results. Generally, you should use the same method of gathering facts that you used in Step 2 (that is, working with the key people affected, in conjunction with utilizing your diagnostic tools).

Step 7 Analyze the results to determine whether the problem has been resolved. If it has, then the process is complete. Step 8 If the problem has not been resolved, you must create an action plan based on the next most likely problem in your list. Return to Step 4, change one variable at a time, and repeat the process until the problem is solved.

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