City Wi-Fi for guest, staff, and IoT each required more VLANs trunked to every access layer, and the same pattern is spreading in the data center. Which traditional challenge do overlays reduce there?
Select an answer to reveal the explanation.
Short Explanation
Trunk explosion is spraying a new VLAN down every switch because each Wi-Fi class wanted its own tag. In the data center, overlays ride a small underlay instead of a fat trunk of every tenant VLAN. Guest, staff, and IoT logical nets should not each become another citywide trunk.
Full Explanation
Traditional designs extend every tenant or class-of-service VLAN as a trunk to every access or top-of-rack switch, which does not scale. Overlay networks encapsulate many logical networks across a relatively simple IP underlay and reduce VLAN and trunk sprawl in the data center. Horizon clients and per-port unique VLANs are not the overlay answer. Some underlay VLANs remain; they are not a one-to-one copy of every logical network.