Which technology on a CX 6200 helps keep a legacy layer-2 application communicating across layer-3 sites?

Which technology on a CX 6200 helps keep a legacy layer-2 application communicating across layer-3 sites?

• A. Inclusive Multicast Ethernet Tag (IMET)
• B. Ethernet over IP (EoIP)
• C. Generic Routing Encapsulation (GRE)
• D. Static VXLAN

Answer: (A)

Extending a Layer 2 domain over a Layer 3 fabric to keep a legacy L2 application communicating across sites is what this is about. Inclusive Multicast Ethernet Tag (IMET) on the CX 6200 is built to enable that by using multicast to deliver Ethernet frames across the fabric so all participating switches can see the same L2 traffic, including broadcast and unknown unicast frames. This lets the VLAN carrying the legacy application behave like a single Layer 2 domain even though the sites are connected through Layer 3, preserving MAC learning and ARP behavior without needing complex per-site tunnels. The other options are tunneling/overlay approaches that carry L2 frames across an underlay but don’t provide the same integrated multicast-enabled L2 extension across multiple sites with minimal configuration. They can work, but IMET is specifically designed to maintain L2 connectivity for a legacy application across a Layer 3 network in Aruba CX environments.

Extending a Layer 2 domain over a Layer 3 fabric to keep a legacy L2 application communicating across sites is what this is about. Inclusive Multicast Ethernet Tag (IMET) on the CX 6200 is built to enable that by using multicast to deliver Ethernet frames across the fabric so all participating switches can see the same L2 traffic, including broadcast and unknown unicast frames. This lets the VLAN carrying the legacy application behave like a single Layer 2 domain even though the sites are connected through Layer 3, preserving MAC learning and ARP behavior without needing complex per-site tunnels.

The other options are tunneling/overlay approaches that carry L2 frames across an underlay but don’t provide the same integrated multicast-enabled L2 extension across multiple sites with minimal configuration. They can work, but IMET is specifically designed to maintain L2 connectivity for a legacy application across a Layer 3 network in Aruba CX environments.