What does the destination MAC on the outer MAC header identify in a VXLAN packet?
What does the destination MAC on the outer MAC header identify in a VXLAN packet?
In a VXLAN packet, the destination MAC address on the outer MAC header identifies the next hop. The outer MAC header is added for the underlay network to encapsulate and forward VXLAN packets within the physical network infrastructure. Therefore, the correct answer is the next hop, which is the immediate device responsible for forwarding the packet towards its final destination.
It's the next hop (voting to erase the mistake)
B seems correct
Question ask for outer MAC header. The outer MAC header is the Ethernet header added to encapsulated packets for transport across the underlay network. It guides the packet within the physical network. The inner MAC header is from the original packet and guides the packet's delivery within the overlay network. destination MAC address in the outer MAC header could indeed represent the next hop device, which is the device responsible for forwarding the packet to its final destination. This is commonly seen in standard Ethernet forwarding. destination MAC address in the inner MAC header should be the leaf switch.
Seems to be OK
Yes I agree
i think B is correct
i think B is correct
What about C? I mean, it is the next hop for the overlay, but not including the underlay. But C would identify the remote switch in both overlay and underlay. I am unsure though.
Outer MAC Header: The outer MAC header includes the source and destination MAC addresses of the VTEPs (tunnel endpoints) involved in the VXLAN communication. The destination MAC address in the outer MAC header points to the VTEP that should receive the VXLAN packet.
my fault, its a B. the next hop