Microsoft Hyper-V 3 Deep Dive: Network Virtualization

A new IT buzzword (that is, hot on the heels of the now fairly worn "cloud") is software-defined networking. Driven by the need for data center networks to be more agile and policy driven than traditional manual switch configuration and VLANs can provide, SDN promises a world where your entire data center network is controlled via policy, and where VMs and networks are created and destroyed as the need arises. Microsoft's take on SDN comes in two products: The plumbing is built into Hyper-V in Windows Server 2012 in the form of network virtualization, while the management piece is in System Center Virtual Machine Manager 2012 SP1.

Cloud and SDN = Better Together

Businesses that look to move part of their workloads to a public cloud provider offering IaaS are often met by the requirement to change the IP address of their VMs. For many, this is not an easy task, as IP addresses of servers aren't just random numbers but often security, IPsec and firewall policies are tied to specific IPs. Finding all the locations for these and making sure they're changed is error-prone and time-consuming. This situation also makes it harder to move between cloud providers, as well as linking your internal network to one or more external clouds in a seamless manner.

To learn more and to read the entire article at its source, please refer to the following page, Hyper-V 3 Deep Dive: Network Virtualization- Virtualization Review Columns

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