300-410 Exam - Question 114

MPLS Layer 3 VPN services are deployed by ensuring that the label switch path (LSP) is available between the local and remote Provider Edge (PE) routers. This path is crucial for establishing the communication and routing of packets between these endpoints across the MPLS network. The LSP provides the necessary infrastructure for the correct forwarding of labelled packets from one PE router to another, ultimately ensuring successful VPN operation.