Using Differentiated Services to Tame Elephants

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This post was co-authored by Justin Pettit, Staff Engineer, Networking & Security Business Unit at VMware, and Ravi Shekhar, Distinguished Engineer, S3BU at Juniper Networks. ******************** As discussed in other blog posts and presentations, long-lived, high-bandwidth flows (elephants) can negatively affect short-lived flows (mice). Elephant flows send more data, which can lead to queuing delays for latency-sensitive mice. VMware Read more...

A Customer Perspective: VMware NSX, Micro-Segmentation & Next-Generation Security

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VMware NSX and Palo Alto Networks are transforming the data center by combining the fast provisioning of network and security services with next-generation security protection for East-West traffic. At VMworld, John Spiegel, Global IS Communications Manager for Columbia Sportswear will take the stage to discuss their architecture, their micro-segmentation use case and their experience. This is session SEC1977 taking place on Read more...

Physical Networks in the Virtualized Networking World

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[This post was co-authored by VMware’s Bruce Davie and Ken Duda from Arista Networks, and originally appeared on Network Heresy] Almost a year ago, we wrote a first post about our efforts to build virtual networks that span both virtual and physical resources. As we’ve moved beyond the first proofs of concept to customer trials for our Read more...

Geneve, VXLAN, and Network Virtualization Encapsulations

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In this post, Bruce Davie and T. Sridhar of VMware’s Networking and Security Business Unit take a look at a proposed a new encapsulation protocol that would standardize how traffic is tunneled over the physical infrastructure by network overlay software. ++++ For as long as we’ve been doing Network Virtualization, there has been debate about how best to Read more...

VMware NSX Runs Great on VCE Vblock Systems

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Last week at EMC World in Las Vegas, one of the industry’s best offerings in converged infrastructure was on display. The adoption of converged infrastructure is becoming increasingly common in many organizations. In fact, research estimates that the total addressable market for converged infrastructure will reach $402B by 2017. Companies are taking advantage of converged Read more...

Guest Post – When Pets Meet Cattle: OpenStack and VMware, Part 1

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VMware is the industry’s leading enterprise virtualization software company. So it’s not surprising that one of the most common questions asked by enterprises considering OpenStack is: “How does OpenStack integrate with VMware vSphere and VMware NSX?” In November 2013, Mirantis and VMware set forth plans to work together on integrating Mirantis OpenStack with vSphere and NSX. Now, as Read more...

Elephant Flow Mitigation via Virtual-Physical Communication

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Note: this post was developed jointly by Justin Pettit of VMware and Mark Pearson of HP, with additional content from VMware’s Martin Casado and Bruce Davie. A recent Network Heresy post “Of Mice and Elephants” discussed the impact long-lived flows (elephants) have on their short-lived peers (mice).  A quick summary is that, in a datacenter, Read more...

Seven reasons VMware NSX, Cisco UCS and Nexus are orders of magnitude more awesome together

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VMware NSX, Cisco UCS and Cisco Nexus, TOGETHER solve many of the most pressing issues at the intersection of networking and virtualization. Executive Summary VMware NSX brings industry-leading network virtualization capabilities to Cisco UCS and Cisco Nexus infrastructures, on any hypervisor, for any application, with any cloud management platform.  Adding state of the art virtual networking (VMware NSX) to Read more...

VMware NSX Partners: Best-in-Class Services For Virtual Networks

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Applications are strategic business assets and the lifeblood of data centers, and the primary role of IT operators is to ensure that applications are at all times available, fast, and secure. In order to achieve this, businesses rely on network-based services which can include basic security to sophisticated threat prevention, load balancing to assure delivery Read more...