@techreport{ietf-pcn-psdm-encoding-02, number = {draft-ietf-pcn-psdm-encoding-02}, type = {Internet-Draft}, institution = {Internet Engineering Task Force}, publisher = {Internet Engineering Task Force}, note = {Work in Progress}, url = {https://datatracker.ietf.org/doc/draft-ietf-pcn-psdm-encoding/02/}, author = {Michael Menth and Jozef Babiarz and Toby Moncaster and Bob Briscoe}, title = {{PCN Encoding for Packet-Specific Dual Marking (PSDM Encoding)}}, pagetotal = 11, year = 2012, month = mar, day = 12, abstract = {Pre-congestion notification (PCN) is a link-specific and load- dependent packet re-marking mechanism and provides in Differentiated Services networks feedback to egress nodes about load conditions within the domain. It is used to support admission control and flow termination decision in a simple way. This document proposes how PCN marks can be encoded into the IP header for packet-specific dual marking (PSDM). PSDM encoding provides three different codepoints: not-ETM, not-ThM, and PM. Excess-traffic-marking may re-mark not- ETM-packets to PM and threshold-marking may re-mark not-ThM-packets to PM.}, }