Sometimes looking around vendor booths at a conference is as valuable as the conference itself. That’s what one editor found at VMworld

Why VXLAN is gaining traction

The push to modernize Ethernet has come up with number of approaches, the most well-known of which is Virtual eXtensible Local Area Network (VXLAN), a framework for overlaying virtualized Layer 2 networks over Layer 3 networks.

 
(For more detail than I can handle on VXLAN, see this paper from the Internet Engineering Task Force)
 
 
 
 
 VMware is one of a number of companies backing VXLAN, arguing on this page that it offers flexibility through supporting so-called stretched clusters that cross switching and pod boundaries; streamlined network operations by running on Layer 3 networks; and cost savings by running over standard switching hardware.
 
At the conference WAN optimization appliance maker Riverbed and VMware said they are collaborating on a new VXLAN-aware Internet Protocol Flow Information Export (IPFIX) format, which would enable network and application performance monitoring, troubleshooting, and reporting.
 
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