MicroNugget: What is Cisco Data Center Architecture?
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In this video, Anthony Sequeira covers why Cisco’s preference in data center architecture is a layered model with access, aggregation and core layers. Designing networks with those layers enables redundancy, load balancing, and modularity — Anthony talks about each one’s defining characteristics and what devices work best with them.
Although the DCUFI exam was retired in July, 2017, anyone who can think with Cisco’s layered data center architecture can configure better networks. Some of each layer’s characteristics overlap, like security and high availability, while others are unique to their layer, like QoS — but when the access layer, aggregation layer and core layer’s functions are configured properly, a network runs better.
But understanding data center architecture is more than knowing the theory behind the layered architecture model: just as important is understanding how it can be manipulated by different devices and setups, like with the Nexus Single Tier Ethernet design or the Review Extended Fabric.
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