Observe how after decades of Local Area and Wide Area Networking an administrator's most valuable troubleshooting tools are still ping and trace route. Explore routing issues from a customer's perspective. Learn how to remotely test and duplicate customer networks issues. Discover how utilizing probes can make troubleshooting more efficient.
- [Teacher] We've been routing for decades,…but the vast majority of our troubleshooting…is done with the same two tools: ping and traceroute.…It doesn't matter your environment,…be it data center or service provider.…You'll find yourself using this faithful duo.…Even in the enterprise, I view…myself as the service provider.…The employees just happen to be the clients.…I'm usually acting as an actual service provider,…so I'll look at the infrastructure from this perspective.…
The troubleshooting process usually begins when a client…is calling saying, "I'm unable to access…"this resource on the internet."…It could be a specific website, or perhaps a remote site.…If the customer only controls this side of the connection,…I'll have them do a traceroute from…their infrastructure and send it to me.…If they control both sides, which can make…the process much simpler to troubleshoot,…I'll have them provide a traceroute from side A…to side B, and then the reverse, side B to side A.…
Service providers generally take great pains…
Even if you're rusty on your OSI model knowledge, this course is invaluable if you're having trouble with your network. It offers a clear, practical troubleshooting guide to narrowing down and solving most problems related to network connectivity.
- Troubleshooting the physical layer: POTS, Ethernet, and more
- Troubleshooting the data link layer
- Troubleshooting the network layer
- Troubleshooting the transport layer
- Troubleshooting Wi-Fi
- Troubleshooting proactively