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Juniper's New SDN Strategy and Contrail's Starring Role I SDNCentral. SDN showdown: Examining the differences between VMware's NSX and Cisco's ACI. The arrival of Software Defined Networking (SDN), which is often talked about as a game changing technology, is pitting two industry kingpins and former allies against each other: Cisco and VMware.

SDN showdown: Examining the differences between VMware's NSX and Cisco's ACI

Although the companies are coming at SDN from different directions, their software defined aspirations virtually guarantee confrontation. So now that both have laid their SDN cards on the table, it’s time to compare and contrast their approaches. VMware jumped on SDN early with the $1.2 billion acquisition of startup Nicira mid- 2012. Nicira’s network virtualization strategy fit well into VMware’s overall product set, allowing for a tight coupling with products such as vSphere.

Just over a year after the Nicira acquisition, VMware announced its network virtualization platform called NSX in August 2013. Juniper Contrail by Juniper Networks. Cisco ACI Architecture – Simplified. SDN Overview Software defined networking can be defined as a new approach to design, implement and manage networks that is based on the concept of separating the network control plane and data plane, where the control plane provides an abstracted centralized view of the network.

Cisco ACI Architecture – Simplified

As a result, SDN provide the ability of administering traffic and deploying services centrally to address changing business needs, without having to touch each individual switch or router in the forwarding plane. Announcing vCloud Connector 2.0 - One Network, One Catalog, One Cloud. By: Mathew Lodge Today, VMware introduced vCloud Connector 2.0, the latest version of our tool for reliably and efficiently transferring virtual machines and data between vClouds.

Announcing vCloud Connector 2.0 - One Network, One Catalog, One Cloud

VMware’s vCloud platform is unique in that deploying applications and data to any cloud is a core capability. Rather than building an application so it can run in just one cloud, your application can run without changes in any vCloud, whether your own, or from one of our 160+ vCloud service providers. vCloud Connector is the tool that simplifies the movement and management of applications and data between clouds. In version 2.0, we have made that process even simpler: One network: move your application between clouds while retaining the same IP and Ethernet MAC address. What is a Distributed Firewall? : BRAD HEDLUND. In the post “What is Network Virtualization?”

What is a Distributed Firewall? : BRAD HEDLUND

I described a model where the application’s complete L2-L7 virtual network is decoupled from hardware and moved into a software abstraction layer for the express purpose of automation and business agility. In this post I’ll focus on network security, and describe an imminent firewall form factor enabled by Network Virtualization — the Distributed Firewall. If InfoSec ruled the world … well, OK, maybe not the world … if InfoSec ruled the data center network design, and if money was no object, we would probably have something like this. Every server in the data center directly connected to its own port on one massive firewall. Every packet sent from every server would be inspected against a stateful security policy before going anywhere. Let’s pretend money was not the issue. You design a monstrous power sucking stateful firewall chassis with thousands of line-rate ports.

Go ahead and pinch yourself now. List of SDN Controller Vendors & SDN Controllers. List of SDN Controller Vendors & SDN Controllers. 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.

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

The learning process is quite similar to a transparent bridge function. As transparent bridges learn based on the packets received on the bridge ports, the VTEP also learn based on the inner and outer header of the packets received. Let’s take an example to illustrate the VTEP learning process. Example Deployment with Two Hosts As shown in the diagram above there are two Hosts (Host1, Host 2) on which VTEPs are configured, and each host has one virtual machine connected to logical layer 2 network, identified as VXLAN 5001. Initial State of the Forwarding Table How do the forwarding tables get populated? We will take an example of virtual machine on Host 1 trying to communicate with the virtual machine on the Host 2. Host 2 VTEP – Forwarding table entry The diagram above shows the packet flow:

JDSU Perspectives - NFV and SDN...More Than Just Acronyms. Avec Cisco ONE, l'équipementier riposte à Open Flow. Le switch vituel Nexus 1000v de Cisco est associé à ONE Pour contrer l'offensive de la technologie OpenFlow, déjà adoptée par HP, Brocade, Ciena ou encore Juniper, Cisco a décidé de riposter avec sa propre solution baptisée Cisco ONE.

Avec Cisco ONE, l'équipementier riposte à Open Flow

Au cours de la conférence utilisateur CiscoLive qui a lieu cette semaine à San Diego (du 10 au 14 juin), Cisco a dévoilé ses orientations et son projet d'architecture visant à l'intégration de fonctions programmables dans les switch maison, qui, selon l'entreprise, vont au-delà des modèles OpenFlow et Software-Defined Networking (SDN) proposés par la plupart de ses concurrents. Rappelons qu'OpenFlow est un protocole qui permet d'accéder, de manipuler et de tester les routeurs et les commutateurs pour diriger le trafic sur les réseaux. Une belle épine dans le pied de Cisco donc. The Systems Engineer organized chaos: What is Openflow. The OpenFlow standard is no longer anything new but rather a new low level protocol that network vendors are implementing in upcoming hardware.

The Systems Engineer organized chaos: What is Openflow

For these who would like to find out more about how it works and what it does the 'Origins and Evolution of OpenFlow/SDN - Martin Casado' video will give you a quick introduction. Below I put as well some of my notes I found interesting.What is OpenflowOpenflow is an interface to the switch.It relays on the existing hardware you have; the hardware will still perform the same. functions it was originally designed for but we are going to have better manageability interface.It allows us to decouple data plane from control plane.