Technical Summary
This document specifies how PCN-marks are to be encoded into the IP
header by re-using the Explicit Congestion Notification (ECN)
codepoints within a PCN-domain. This encoding provides for up to
three different PCN marking states using a single DSCP: not-marked
(NM), threshold-marked (ThM) and excess-traffic-marked (ETM).
Hence,
it is called the 3-in-1 PCN encoding. This document obsoletes
RFC5696.
Working Group Summary
the working group supported this revision of RFC 5696
Document Quality
the future of PCN is yet to be determined but if PCN is to succeed
this ID is an important part of the technology
There is one downref normative reference to an informational RFC
but since the RFC is an architecture document that seems OK
Personnel
Document Shepherd: Scott Bradner
Responsible Area Director: Martin Stiemerling