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VXLANRSS

Network VXLAN

Software Defined Networking Using the VXLAN Standard - Thomas Richter, IBM - YouTube 50:55

Host interconnection provided by the physical network infrastructure has to cope with an increasing demand of resources requested by the VMs. Furthermore data centers have to host many tenants with its independently assigned network resources leading to a ...
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VXLAN – What it is, Components that Make it Work, and Benefits (VMware SMB Blog)

I’ve been asked about VXLAN by a few people recently so I wanted to put together an overview of the technology. When someone asks me what VXLAN is, I usually respond with “What is your networking background?”  VXLAN can’t be explained in an elevator ...
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Recent Videos: vCloud Networking Components Video 5:29

Mark Jones, VCI, details the networking aspects of the VMWare vCloud Networking and Security product suite, specifically discussing the virtual extensible LAN also known as VXLAN.

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VMware VXLAN and Hyper-V NVGRE compare

Software Defined Networking (SDN) is one of the big buzzwords of year.  VMware has announced their VXLAN (Virtual eXtensible LAN) technology and Microsoft is pushing NVGRE (Network Virtualization using Generic Routing Encapsulation) with their Hyper- ...
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VMware vSphere Blog: VXLAN Series – How vMotion impacts the forwarding table – Part 6

I am sorry that it took me a while to do this post on VXLAN. I was on summer vacation to India for three weeks and then got busy with the VMworld 2013 preparation. I hope you have registered for VMworld US conference. If you are interested in learning mor ...
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Unicast-Only VXLAN Finally Shipping

The long-promised unicast-only VXLAN has finally shipped with the Nexus 1000V release 4.2(1)SV2(2.1) (there must be some logic behind those numbers, but they all look like madness to me). The new Nexus 1000V release brings two significant VXLAN enhancemen ...
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The Cloudcast (.net) - Eps.88 - SDN, Overlays, NFV, VXLAN, ODF and ...WTF?  OpenFlow OpenStack

Description: Brian talks with Ivan Pepelnjak (@ioshints) about the state of networking - SDN, Overlay Networks, Network Virtualization, NFV, VXLAN, OpenFlow, OVS, Quantum, OpenStack - and how to cut through the confusion.

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VXLAN Series – How VTEP Learns and Creates Forwarding Table – Part 5

In this post I am going to describe how VTEPs learn about the virtual machines connected to the logical Layer 2 networks. The learning process is quite similar to a transparent bridge function. As transparent bridges learn based on the packets received on ...
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VXLAN Series – Multiple logical networks mapped to one Multicast group address – Part 4

In this post I am going to address a common question about the security and performance impact when multiple logical Layer 2 networks are mapped to one multicast group address. As mentioned in earlier post here, vCloud Networking and Security (vCNS) Mana ...
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VXLAN Series – Multicast usage in VXLAN – Part 3 (VMware vSphere Blog)

I covered some basics on Multicast in the last blog entry here. Let’s now take a look how multicast is utilized in VXLAN deployments. During the configuration of VXLAN, it is required to allocate a multicast address range and also define the number of log ...
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Using App Firewall with VXLAN Networks (VMware vSphere Blog)

VMware vCloud Networking and Security App Firewall is a hypervisor-based firewall that protects applications in the virtual datacenter from network-based attacks. In this blog, let’s look at how to micro-segment a VXLAN network to deploy a 3-tier applicat ...
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Physical Switch requirements for VXLAN setup (for vCloud Director 5.1.x and vShield 5.1.x) (2050697)

This article provides information on the physical switch pre-requisites for successful VXLAN operation.

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VMware vSphere Blog: VXLAN Series – Multicast Basics – Part 2

In the last post here, I provided some details on vSphere hosts configured as VTEPs in a VXLAN deployment. Also, I briefly mentioned that Multicast protocol support is required in the physical network for VXLAN to work. Before I discuss how Multicast is u ...
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VMware vSphere Blog: VXLAN Series – Different Components – Part 1

In the last six months, I have talked to many customers and partners on Virtual eXtensible Local Area Network (VXLAN). One of the things I felt was challenging was how to explain the technology to two different type of audience. On one hand, there are Vir ...
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VXLAN: Millions or Billions?

I was putting slides together for my upcoming talk and there is some confusion about VXLAN in particular, how many VLANs it provides. The VXLAN header provides a 24-bit address space called the VNI (VXLAN Network Identifier) to separate out tenant segmen ...
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VXLAN Series – Different Components – Part 1

In the last six months, I have talked to many customers and partners on Virtual eXtensible Local Area Network (VXLAN). One of the things I felt was challenging was how to explain the technology to two different type of audience. On one hand, there are Vir ...
Read More...

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VXLAN scalability challenges

VXLAN, one of the first MAC-over-IP (overlay) virtual networking solutions is definitely a major improvement over traditional VLAN-based virtual networking technologies … but not without its own scalability limitations.

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VMware VXLAN Deployment Guide – Whitepaper

Organizations worldwide have gained significant efficiency and flexibility in their datacenters as a direct result of deploying VMware server virtualization solutions. Although compute has been virtualized, network and security technologies in d ...
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