In the previous installment we discussed how SDN replaced distributed routing by centralized path computation. But SDN introduced an additional novel abstraction – the whitebox switch.
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Sep 03, 2018
Aug 27, 2018
As mentioned last time, SDN theorists declare that SDN is the networking technology that separates the forwarding plane from the control plane. Of course the logical separation of networking into planes has been conventional for three decades, and time-honored tradition distinguishes three planes – those of forwarding, control, and management.
Aug 20, 2018
The concept of logical separation of a network’s operation into planes first surfaced during discussions in the ITU on ISDN in the 1980s. After initial proposals favored two planes, it was concluded that three planes were necessary, namely the forwarding plane, the control plane, and the management plane.
Aug 13, 2018
In the last year or so, SD-WAN has caught the attention of service providers, with some of them going as far as investing in related startups. At the same time, service providers began to realize that while the technology provides easy-to-deploy solutions that include VNFs, white boxes and a management suite, these solutions are in effect walled gardens.
Aug 06, 2018
5G is coming fast, promising to change – yet again – the way we connect to the world and consume data. It will enable ubiquitous wireless broadband, also known as enhanced mobile broadband (eMBB), (e.g., wireless-to-the-premises and broadband on high-speed trains, at events and in crowds) and other, entirely new market segments.
Jul 30, 2018
Network operators of power, water and gas utilities, transportation, safe cities and other critical infrastructure (CI) have their work cut out for them. Their operational technology (OT) networks are currently migrating from TDM to packet-based WANs – Carrier Ethernet, IP/MPLS and MPLS-TP – and they must make sure that they are able to maintain service and network reliability.
Jul 23, 2018
When NFV and SDN were first introduced, they held the promise of a true revolution – nimble networks, automated service rollouts and general purpose, low-cost white boxes replacing dedicated appliances – straight out of IT operations.
Jul 16, 2018
BlockChain is the technology behind cryptocurrencies such as BitCoin and Ethereum, and is becoming a popular mechanism for secure storage of arbitrary information.
Jul 09, 2018
It started off with the Smart Grid: An automated power grid that heals itself and regulates supply and demand, by – among others – introducing two-way communications between countless intelligent devices.
Jul 09, 2018
Welcome to RAD’s new blog space. We are a global telecom access solutions and products vendor enabling service providers and critical infrastructure network operators to evolve any service over any network – at their own pace.
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