There's a war brewing behind the scenes, one which involves Cisco, HP, and other major players. What are they fighting over? Control of data centers. But despite this battle, those same companies are working together to try and push through new Ethernet standards.
The reason for this is because those standards could make life a lot easier for all involved, especially when it comes to managing virtualized IT data centers. These types of issues are exactly what the IEEE 802.1Qbg and 802.1Qbh specifications are designed to overcome. Put simply, these standards would greatly ease the burden of policy, security, and management processing from virtual switches on NICs and blade servers, putting them back onto physical Ethernet switches.
"There needed to be a way to communicate between the hypervisor and the network," says Jon Oltsik, an analyst at Enterprise Systems Group. "When you start thinking about the complexities associated with running dozens of VMs on a physical server the sophistication of data center switching has to be there."
The downside to this is that by adding this element to the hypervisor, there would be a drastic rise in the amount of network processing overhead to the server, Oltisk warns.