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brucedavie

Bruce Davie

Principal Engineer, Networking & Security

Biography

Bruce Davie is a Principal Engineer in the Networking and Security BU. He joined VMware as part of the Nicira acquisition, and focuses on network virtualization. He has over 25 years of networking industry experience, and was a Cisco Fellow prior to joining Nicira. At Cisco, he worked closely with leading service providers to enhance the capabilities of their networks. He led the team that developed multi-protocol label switching (MPLS) and contributed to the standards on IP quality of service. He has written over a dozen Internet RFCs and several networking textbooks. Bruce received his Ph. D. in computer science from the University of Edinburgh in 1988 and is an ACM Fellow.

Posts by Bruce Davie

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Geneve, VXLAN, and Network Virtualization Encapsulations

June 13, 2014
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Geneve, VXLAN, and Network Virtualization Encapsulations

For as long as we’ve been doing Network Virtualization, there has been debate about how best to encapsulate the data. As we pointed out in an earlier post , it’s entirely reasonable for multiple encapsulations (e.g. VXLAN and STT ) to co-exist in a single network. With the recent publication of “ Geneve ”, a new proposed encapsulation co-authored by VMware, Microsoft, Red Hat and Intel, we thought it would be helpful to clarify a few points regarding encapsulation for network virtualization. First, with all the investment made by us and our partners in developing support for VXLAN (described here ), we very much intend to continue...

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Network Virtualization in 2014

December 13, 2013
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As 2013 comes to a close, it’s time to pull out the crystal ball and make some predictions about 2014—specifically, about what we’re likely to see in the Network Virtualization space in the coming year. The safest prediction I can make is that Network Virtualization will see a significant uptick in adoption next year. That’s based in part on a simple extrapolation of what we’ve seen in 2013. We’ll end 2013 with significant customer momentum for the VMware NSX network virtualization platform. Adoption has started to spread beyond public cloud providers and technology-driven customers like eBay to large enterprises, notably the large financials. So it’s a safe bet that 2014 will be a year in which adoption moves even further into the mainstream. We’ll...

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Network Virtualization Gets Physical

August 14, 2013
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Network Virtualization Gets Physical

Network virtualization, as others have noted , is now well past the hype stage and in serious production deployments . One factor that has facilitated the adoption of network virtualization is the ease with which it can be incrementally deployed. In a typical data center, the necessary infrastructure is already in place. Servers are interconnected by a physical network that already meets the basic requirements for network virtualization: providing IP connectivity between the physical servers. And the servers are themselves virtualized, providing the ideal insertion point for network virtualization: the vswitch (virtual switch). Because the vswitch is the first hop in the data path for every packet that enters or leaves a VM,...

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Open Source, Open Interfaces, and Open Networking

February 26, 2013
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Open Source, Open Interfaces, and Open Networking

Without a doubt these are transformative times in networking. Everything we’ve known about how to build and operate networks over the last quarter century is changing: networks are evolving from interconnections of individually configured devices to software-defined, programmable networks. Some will characterize these times as “disruptive”, referring to the potential for leadership change in the networking supply chain. And while that may or may not be an eventual consequence, at VMware we see the challenge and opportunity ahead as something much larger than that. More importantly, it’s time for the industry to come together again—both customers and suppliers—to re-think and re-define how open networking will perpetuate...

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VXLAN, STT, and looking beyond the wire format

February 15, 2013
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VXLAN, STT, and looking beyond the wire format

Some months ago, we wrote a post over on Network Heresy explaining the relationship between various tunneling protocols that are used in support of network virtualization. Because this issue of the encapsulation used for network virtualization seems to keep on causing confusion, we’re providing an updated version of the post here. To boil this down to its essence, there are just two main issues: Network Virtualization is an architectural change in how networks are built and operated, and tunnel encapsulations are a small, modular part of a network virtualization solution. As encapsulations, VXLAN and STT each have their respective merits, and we see them co-existing for the next few years....

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Network Virtualization in the Software-Defined Data Center

January 4, 2013
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Network Virtualization in the Software-Defined Data Center

This post co-authored by Bruce Davie, Martin Casado, and Brad Hedlund VMware has long been known as the company that changed computing by virtualizing servers. At Nicira, we set out to disrupt networking just as VMware disrupted computing, by virtualizing networks. The analogy between network virtualization and server virtualization can be a helpful one, but it is still only an analogy, and analogies can only take you so far. The point of this post is to dig a bit deeper into network virtualization – what it is, what it means for the industry, and how VMware, in the aftermath of the Nicira acquisition, plans to change networking. Just as server virtualization introduces the abstraction of the virtual machine, network virtualization introduces the virtual network abstraction....

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