Inside Products NITK Surathkal NITK Surathkal NITK Surathkal NITK Surathkal RFC8250 describes an optional Destination Option (DO) header embedded in each packet to provide sequence numbers and timing information as a basis for measurements. As kernel implementation can be complex and time-consuming, this document describes the implementation of the Performance and Diagnostic Metrics (PDM) extension header using eBPF in the Linux kernel's Traffic Control (TC) subsystem. The document also provides a performance analysis of the eBPF implementation in comparison to the traditional kernel implementation.