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Welcome! Throughout this course, Network Systems Foundations, you will delve into the fundamental layers of network communication. You will start with a thorough discussion of the Link Layer and its ...

Every telecom system is bursting with information about subscribers, services and devices—not to mention the telco's network equipment and operational status. This data is both sensitive and necessary ...

For decades, networks have been built on the same fundamental principle: dedicated hardware appliances for each network function. Need a firewall? Buy a box. Need load balancing? Purchase another ...

Mobile operators are looking to benefit from the operational and capital cost savings that virtualization has brought to the enterprise world. Network functions virtualization (NFV) promises the ...

With all the attention garnered by the higher OSI layers, we sometimes forget that all seven layers are necessary for communications to work. So when troubleshooting, for example, don’t forget about ...