If only some devices on a network run MPLS (MPLS domain is encapsulated in the IP packet header), labels are generated only for direct routes of devices running MPLS. Labels are not generated for the routes originated from other devices running IP protocols.

Question

Quizplus · Accepted Answer

Labels are only generated for direct routes of devices running MPLS because MPLS is a layer 2 technology that operates on top of IP. Devices that do not run MPLS will not be able to understand or process MPLS labels.

If Only Some Devices on a Network Run MPLS (MPLS