Arista launches new security feature to cover growing East-to-West data center traffic
Five years ago, almost all of the traffic in a data center moved in a North-South direction. Traffic moved from one server through the different tiers of a network, passed through the core, and then up to another server. Enabling security and application optimization services with this model was fairly simple. Put a big, honking firewall or ADC in the core of the network and all traffic would pass through these devices.However, the past few years have seen an explosion in East-West traffic, primarily driven by servers and virtual machines (VMs) talking to each other and to database systems, storage systems, and other applications in the data center. Typically, East-West traffic never passes through the core of the network, where it can have the benefit of security inspection. Also, the volume of East-West traffic is rapidly becoming a much higher percentage relative to North-South. This makes it easier for a piece of malware that may have breached an unpatched server to spread laterally. To read this article in full or to leave a comment, please click here
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