P-OTS Is Not POTS Anymore, And It’s Anything But Plain

We have come a long way from the POTS (Plain Old Telephone Service) infrastructure of yesteryear. Indeed, today’s Metro P-OTS (Packet-Optical Transport Services) deliver many thousand times more capacity using less energy, and at a fraction of what customers were paying back in the days of analog voice services. Ciena, a specialist packet-optical network vendor […]

Network Functions Virtualization Enables Cost-Effective Route Reflectors

One of the concerns I hear from network managers regarding all things software defined networks (SDNs) is the lack of use cases for the new technology.  It seems the technology promises to solve so many problems that it’s hard to understand where to start.  Network Functions Virtualization (NFV) is no different.  Lots of possibilities, but […]

Hardware: Beginning of the End, or End of the Beginning?

In a recent post here on WANSpeak, Zeus Kerravala, Principal Analyst at ZK Research, stated that he has evolved from trying to make the case that a software-defined WAN is a good alternative to a traditional WAN, to believing that the SDW should be the only type of wide area network that companies should even […]

The Stupidity Index: We Have Met The Enemy… And He Is Us

You can’t fix stupid, according to Texas funnyman Ron White, but stupidity — or at least human error — is a leading cause of security breaches, and its escalating costs are no laughing matter. I recently came across a novel idea for a new metric for business continuity, the Stupidity Index. ‘If most problems are […]

If It’s Only A Question Of Size, Let’s Throw More At It

When talking about networks, the discussions quite often come down to discussions around bandwidth.  Everyone knows that more is better — well, at least that is the standard thought process anyway. Mainstream wired LAN connections are currently running at the 1Gbps and 10Gbps level, with 40Gbps uplinks being used as well, and virtualization allowing the […]

40G Is Catching On In The Datacenter But…

The latest findings from Infonetics Research should come as no surprise: 40 Gigabit is booming in the data center and 100G is taking off in the core. “Deployments of 1G, 10G, 40G, and 100G ports once again grew significantly in 2013, as enterprises and service providers invested in their networks to accommodate the growth in […]

Seven Steps to a Modern Data Center

Once upon a time, ‘data center’ was really just a fancy name for a server room. Now, data centers are big business — and huge consumers of power and other resources. Indeed, their hunger for power means that they now account for a significant proportion of the world’s carbon emissions. The rising cost of power […]

Virtual Appliances Going Mainstream In The Data Center

VMware, EMC’s majority-owned virtualization business, has been pushing the software-defined data center for close to two years, but while SDDC still remains more of a concept than a reality, virtual appliances are going mainstream in the data center, according to a new report from Infonetics Research. “Virtual application delivery controller (ADC) revenue is growing fast […]

Performance Is The First Victim In Application Warfare

“The more, the merrier!” goes the old cry. Well, not when a multitude of applications jostle for priority across a ‘best effort’ Internet. Oldies among us still remember the days of crystal-clear analog telephone conversations across connections that were completely reserved for our conversing pleasure (of course, telecom costs were outrageous, and there wasn’t any […]

Using Converged Network Offload to Turbocharge VM Migration

You’ve accelerated your WAN, virtualized your servers, and switched over to 10Gig Ethernet, but VM management — and in particular VM migration — is still taking too long, and when you do it, it hammers the servers. What is going wrong, and what can you do? In many cases the culprit will be network overhead. […]