Refer to the exhibit. Customers report occasional forwarding issues from hosts connected to R6 to hosts connected to R1. A network engineer has just updated the MPLS configuration on the network…

Configuring MPLS TE (Traffic Engineering) is used for explicit path control and resource reservation, not for identifying the actual forwarding path during troubleshooting.

MPLS OAM (Operations, Administration, and Maintenance) provides critical tools such as LSP ping and LSP traceroute, which are specifically designed to verify and identify the exact path taken by label switched packets. Implementing MPLS OAM allows engineers to effectively detect faults, verify LSP connectivity, and pinpoint where forwarding issues are occurring along the path from R6 to R1. This is crucial for troubleshooting the reported occasional forwarding problems and understanding the data plane's behavior.

MPLS VPLS (Virtual Private LAN Service) provides Layer 2 multipoint-to-multipoint VPN services, which is unrelated to path identification for troubleshooting forwarding issues.

MPLS LDP Sync ensures proper IGP and LDP convergence to prevent blackholes, but it does not provide mechanisms for identifying forwarding paths for troubleshooting.