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Cisco Data Center VM-FEX Technology: Cisco Data Center VM-FEX technology extends fabric
interconnect ports directly to virtual machines, eliminating software-based switching in the hypervisor. Cisco
Data Center VM-FEX technology collapses virtual and physical networking infrastructure into a single
infrastructure that is fully aware of the virtual machines’ locations and networking policies (Figure 4). Cisco
Data Center VM-FEX technology is implemented by Cisco VICs with an implementation of IEEE 802.1BR
Port Extender.
Figure 4. Cisco Data Center VM-FEX with Cisco UCS VIC 1225T