Refer to the exhibit. An engineer is designing a new data center for a customer using Cisco proprietary technology. The engineer must ensure the highest availability and bandwidth for south-to-north t

vPC between only the two Nexus 5500s provides high availability at the access layer but does not optimize bandwidth or redundancy for the uplink path to the Nexus 7K core.

vPC+ is a technology associated with FabricPath/TRILL, which is a different architectural approach than standard vPC and not the primary method for simply maximizing availability and bandwidth with Nexus 5500/7K in a traditional vPC design.

Implementing vPC (Virtual Port Channel) between the two Nexus 5500 switches and further implementing vPC between the Nexus 5500s and the Nexus 7K switches creates a robust, loop-free, and highly available architecture. This design maximizes south-to-north bandwidth by aggregating multiple physical links and provides redundancy at both access (5500) and aggregation/core (7K) layers.

vPC+ between only the two Nexus 5500s has the same shortcomings as option B and also fails to address the full south-to-north path to the Nexus 7K switches.