I have a basic to moderate understanding of VLAN's and their pros and cons as they relate to network segmentation but I'm wondering where to start as one moves into virtualized environments.
From a security perspective, how does traditional VLAN segmentation stand up to products/solutions focused on virtual environments, such as VMWare's vCloud Networking and Security product? When you're working with collocated VM's what strategies/technologies do you rely on to segment VM traffic?
I know this may be overly broad, but any starting points would be extremely helpful. For the sake a specific question though, perhaps a good way to put it would be - Do you consider virtual network security products to be at least as good as tradition VLAN's for the purpose of segmenting network traffic?