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Cisco ACI Cookbook by Stuart Fordham

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ACI hardware

In Figure 4, we can see a typical deployment with two spines and three leaves. The Nexus 9500 modular switches are deployed at the top of the topology and act as spines, which in a traditional three-tiered network design would be the aggregation or core switches. Line cards are used to provide the ASICs (application-specific integrated circuitry) required for ACI. There are different line cards available, so make sure you are not purchasing a card that is NX-OS mode only.

The next component is the leaf switches. These are the Nexus 9300-series switches.

The spines connect to the leaves through 40 GE ports, but the spines and leaves are never connected (spine to spine or leaf to leaf).

Figure 4

We can also extend the network, ...

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