Postcard-based On-Path Flow Data Telemetry using Packet Marking
Tianran Zhou, Greg Mirsky, Jongyoon Shin, Zhenbin Li, Kyungtae Lee, Haoyu Song · 1997
The document describes a packet-marking variation of the Postcard- Based Telemetry (PBT), referred to as PBT-M. Unlike the instruction- based PBT, as embodied in [I-D.ietf-ippm-ioam-direct-export], PBT-M does not require the encapsulation of a telemetry instruction header, so it avoids some of the implementation challenges of the instruction- based PBT. However, PBT-M has unique issues that need to be considered. This document serves as a scheme overview and provides design guidelines applicable to implementations in different network protocols.