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How does the internet work – Networking knowledge project that will tell you all you ever wanted to know about Computer Networks, Cisco, Juniper and other vendors technology. Articles are vendor agnostic as much as possible, giving configuration examples from Cisco IOS or Juniper JunOS.

Latest – Most recent 5

SDDC – Software Defined Datacenters

Routing – How it works?

Switching – How it works?


Network Fundamentals:

About Protocols:

Scientific & Academic Work



Tunneling Protocols:

Network Devices and Equipment:

VoIP – Voice technology:

OSI layers:

7. Application layer:

6. Presentation layer:

5. Session layer:

4. Transport layer:

3. Network layer:

2. Data link layer:

1. Physical layer: