County web and app VMs on the same cluster send east-west traffic to a hardware firewall in another building and back. Which traditional challenge is that, and how does virtual networking address it?
Select an answer to reveal the explanation.
Short Explanation
Hairpinning is the long detour out to another building just to inspect two VMs that already sit on the same cluster. A distributed firewall checks at the vNIC, like a guard at each apartment door. The county should not send neighbor-to-neighbor mail across town and back.
Full Explanation
Traditional east-west security often hairpins VM-to-VM traffic to a centralized hardware firewall, adding latency and core load even when both VMs share a cluster. The NSX-T distributed firewall inspects at the virtual NIC or hypervisor, so that traffic need not leave the host for policy. Carbon Black and Horizon protocols do not replace that distributed network inspection. Hairpinning is a problem to eliminate, not an NSX requirement.