Your customer needs help troubleshooting a Layer 3 network routing issue.

This is because the traceroute command is a network diagnostic tool that traces the route of packets across an IP network. It shows the path that packets take from the source device to the destination device and displays information such as the IP addresses of routers and switches along the path, the round-trip times of packets, and any packet loss or errors.1 It can help troubleshoot a Layer 3 network routing issue by identifying where the packets are dropped or delayed.