A software-defined network: is it an evolution or a revolution in networking? The hype of SDN has been around for several years, but as yet it doesn’t seem to have managed to get much traction outside of the MSPs and Fortune 500 companies with regard to SDN, and telcos with regard to SD-WAN. When, if …
Continue reading “Overly, Underlay, Packets Flow Free. Is SDN Going to Take Over the World?”
SDN, or software-defined networking, is taking over the world—or at least if you listened to the marketers for the main purveyors of SDN and its cousin SD-WAN, you would think so. In fact, if you just listened to the marketers, you would be feeling pretty inadequate with your local data center; your physical network with …
VMware has just announced that it intends to acquire the SD-WAN company VeloCloud in an attempt to expand the capabilities of its networking business unit. No one can deny that VMware NSX is a very capable networking product, but it does have gaps and is incomplete. In reality, it can only create software-defined network islands surrounded …
In May, I attended the first Ravello Systems Blogger Day in Redwood City, San Francisco. It was a great day of catching up with my friends at Ravello and talking to the other bloggers invited to the event. I did quite a bit of work with Ravello when it was a small startup with developers …
When we think about networking, we think about things that go bump in the wire—things that place bumps in the wire. Such things could be switches, load balancers, firewalls, routers, gateways, etc. The list is not all that long, thankfully. Things that put bumps in the wire are at odds with software-defined networking (SDN). SDN …
I’ve written before about the difficulty as a user of getting hold of VMware’s NSX and about other problems with the release, but a small recap is in order. Founded in 2007, Nicira was bought by VMware in 2012 for its SDN platform. This consists of deep integration that combines the open VXLAN standard with vSphere’s vShield-like products …
