A next generation network is a packet-based network that can be used for both telephony and data and that supports mobility. Initially, the term Next Generation Network was used to refer to the transformation of the core network to IP. Sometimes an NGN is referred to as an all-IP network. The ITU defined an NGN […]

What is quantum computing? Nature — including molecules like caffeine — follows the laws of quantum mechanics, a branch of physics that explores how the physical world works at the most fundamental levels. At this level, particles behave in strange ways, taking on more than one state at the same time, and interacting with other […]

BYOD (bring your own device) is the increasing trend toward employee-owned devices within a business. Smartphones are the most common example but employees also take their own tablets, laptops and USB drives into the workplace. BYOD is part of the larger trend of IT consumerization, in which consumer software and hardware are being brought into […]

How does network security work? Network security combines multiple layers of defences at the edge and in the network. Each network security layer implements policies and controls. Authorized users gain access to network resources, but malicious actors are blocked from carrying out exploits and threats. Types of network security Access control Not every user should […]

Cloud computing, often referred to as simply “the cloud,” is the delivery of on-demand computing resources—everything from applications to data centers—over the internet on a pay-for-use basis. Elastic resources—Scale up or down quickly and easily to meet demand Metered service so you only pay for what you use Self service—All the IT resources you need […]

Software-Defined Networking (SDN) is an emerging architecture that is dynamic, manageable, cost-effective, and adaptable, making it ideal for the high-bandwidth, dynamic nature of today’s applications. This architecture decouples the network control and forwarding functions enabling the network control to become directly programmable and the underlying infrastructure to be abstracted for applications and network services. The OpenFlow® […]