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Infrastructure

What is SDN?

Software Defined Networking (SDN) means different things to different people. Some of the key words often associated with SDN are Automation, OpenFlow, Network virtualization and Overlay networking. Lets look at each of these in turn and see how they fit with SDN. Automation Managing large networks has always been painful, …

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Cisco Nexus ACI – Hardware Data Sheet

NOTE: All data contained on this page was taken directly from the vendors product data sheet. No validation of accuracy is offered for figures stated regarding bps or pps. The information provided is solely for a point of reference and should only be taken on a provided ‘as is’ basis …

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Virtualization

What is it? So to start with virtualization goes way back so not to waste anyone’s time the virtualization we are talking about here is based on x86 architecture. Wikipedia defines virtualization as In computing, virtualization refers to the act of creating a virtual (rather than actual) version of something, …

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Whitebox Switching

Whitebox switches have started to become more popular within large Data Centers. and if you look at the increase in Network Operating System Vendors it would seem it’s set to continue. What is it? Many people are familiar and associate the term whitebox with computer hardware such as servers, personal …

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Micro-Segmentation

What is it? Micro-Segmentation is a way to apply a granular security policy that protects and restricts access to devices in your network. Isn’t that a Firewall? You can think of it as a distributed host firewall that doesn’t sit on your host. Huh? OK, so traditionally you have a …

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Cisco ACI Overview

Cisco Application Centric Infrastructure (ACI) Cisco ACI is the Cisco’s turnkey SDN solution. Currently based on the Nexus 9000 series of switches, the ACI abstracts the underlying Data Center network to a level where it can almost be seen as a service provider network for attached client systems. The solution …

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VMware NSX Overview

What is it? Part of VMware’s Software Defined Data Center (SDDC), NSX is VMware’s network and security solution. NSX a virtual alternative to the physical network appliances located in the Data Center placing routers, firewalls and load balancers into the hypervisor. This removes the reliance on the physical network and if you read some of the literature the network team. …

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UTM

What is it? A unified Threat Management device is the swiss army knife of network security products. They are generally marketed toward the SMB market and include features such as firewall, IPS and VPN. Wait, isn’t that a NGFW? Well why have one buzz word when you can have two. …

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