When discussing private cloud, questions often come up about how the big boys are doing it; Google, Amazon, Microsoft, etc. The thinking is that the large scale data centers they are running can teach us lessons about smaller scale infrastructure for private clouds, which, on the surface, seems to make sense. Take the lessons learned in big data centers about scale, efficiency and reliability and apply them to smaller scale private cloud deployments. This method is not however without problems. Very little of what the large public cloud providers do is actually applicable to a private cloud. The reason for this is twofold: scale and application. Read the full post on Network Computing: http://www.networkcomputing.com/private-cloud/232602398
Concepts
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Reassesing ‘Vendor Lock-In’
Lock in is an oft discussed consideration when making technology decisions. I tend to see it used more by vendors seeding Fear Uncertainty and Doubt (FUD), but I also see it in the native decision making processes of many of my customers. Let’s take a look at it, starting with…
NVGRE
The most viable competitor to VXLAN is NVGRE which was proposed by Microsoft, Intel, HP and Dell. It is another encapsulation technique intended to allow virtual network overlays across the physical network. Both techniques also remove the scalability issues with VLANs which are bound at a max of 4096. NVGRE…
Network Overlays: An Introduction
While network overlays are not a new concept, they have come back into the limelight, thanks to drivers brought on by large-scale virtualization. Several standards have been proposed to enable virtual networks to be layered over a physical network infrastructure: VXLAN, NVGRE, and SST. While each proposed standard uses different…