Category Archives: Networking

Network Availability: the quest for the five nines

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Any organization that relies on data networks for its core operations needs to ensure the continued availability of its network infrastructure, which includes LAN devices (switches, routers, firewalls, etc.), WAN links, Internet and cloud connections, and the support facilities (power, air conditioning, etc.). The network operator may achieve the desired… Read more »

Vehicles communication and the mysterious traffic jams

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Have you been stuck in traffic driving a car at the speed of a few meters per hour only to emerge from the traffic jam a while later not certain what caused it in the first place? Traffic experts are likely to attribute the cause to a road construction, a… Read more »

Connectivity with Dark Fibre and Carrier Ethernet Services

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Network service providers (a.k.a communication carriers) are offering multiple services suitable for MAN (metropolitan area network) and WAN (wide area network) connectivity. This article introduces two of these services that offer unique benefits to organizations seeking this type of network connectivity. Dark Fibre Service Dark fibre refers to optical fibre… Read more »

What is SDN?

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Software Defined Networks (SDN) is a new technology with a lot of potential and a healthy dose of hype. The main premise of SDN is moving the intelligence of the network from distributed network nodes to a centralized location to enable programmability and flexibility of configuration through software applications. Each… Read more »

Multi-homed Internet Connectivity using BGP

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Connectivity to the Internet through more than one upstream ISP (Internet Service Provider) is referred to as multi-homing (or dual-homing in case of two ISPs). Multi-homing is generally required to increase the reliability of the Internet connection by reducing the reliance on a single provider and eliminating single-point-of –failure in… Read more »