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Ethernet
What is ONAP, and how does it tie into NFV architecture?
Network expert Lee Doyle looks at ONAP, its role in NFV architecture and its progress in becoming the standard platform for NFV management and orchestration. Continue Reading
Network infrastructure design for network-as-a-service
When it comes to network as a service, network infrastructure design depends on if you want services delivered across the LAN, WAN or data center. Find out what you need to know. Continue Reading
Software drives the promise of the interoperable network
Interoperability in networks is essential now, a reality that vendors increasingly acknowledge. Learn how the networking industry is changing to accommodate the need for openness. Continue Reading
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Software-driven network access ups enterprise agility
Network access to service provider systems is becoming software-based. Learn more about how software-defined access works and the flexibility inherent in software. Continue Reading
Test yourself on open networking, open source and SDN
The open networking concept follows the likes of SDN and open source, but the lines separating them all are often blurred. This quiz can help you understand the differences. Continue Reading
network service provider (NSP)
A network service provider (NSP) is a company that owns, operates and sells access to internet backbone infrastructure and services.Continue Reading
Session layer
In the Open Systems Interconnection (OSI) communications model, the session layer resides at Layer 5 and manages the setup and teardown of the association between two communicating endpoints.Continue Reading
presentation layer
Residing at Layer 6 of the Open Systems Interconnection (OSI) communications model, the presentation layer ensures that the communications that pass through it are in the appropriate form for the recipient application.Continue Reading
data center interconnect (DCI)
Data center interconnect (DCI) is a segment of the networking market that focuses on the technology used to link two or more data centers so the facilities can share resources. There are many options for DCI connectivity and selecting the right one ...Continue Reading
How to bridge the network engineering skills gap
Training for new network engineering skills should emphasize basic concepts behind building a network, whether it's software-defined, intent-based or disaggregated.Continue Reading
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Understand the basics of 5G wireless networks
5G wireless networks offer enterprises a lot of intriguing possibilities. What is 5G, and what has to happen before the high-speed, low-latency technology becomes a reality?Continue Reading
Application layer
Sitting at Layer 7 -- the very top of the Open Systems Interconnection (OSI) communications model -- the application layer provides services for an application program to ensure that effective communication with another application program on a ...Continue Reading
physical layer
Located at the lowest layer of the Open Systems Interconnection (OSI) communications model, the physical layer's function is to transport data using electrical, mechanical or procedural interfaces.Continue Reading
transport layer
Positioned at Layer 4 of the Open Systems Interconnection (OSI) communications model, the transport layer ensures the reliable arrival of messages across a network and provides error-checking mechanisms and data flow controls.Continue Reading
Network layer
Located at Layer 3 of the Open Systems Interconnection (OSI) communications model, the network layer's primary function is to move data into and through other networks.Continue Reading