Technical Summary
This document generalizes and expands Alternate-Marking methodology
to measure any kind of unicast flow whose packets can follow several
different paths in the network -- in wider terms, a multipoint-to-
multipoint network. For this reason, the technique here described is
called "Multipoint Alternate Marking". This document obsoletes
RFC8889.
Working Group Summary
This is small bis update we took through the WG quickly. It had clear
consensus, with 
about 1/3-1/2 of the active WG chiming in. Both RFC8321bis and
RFC8889bis are being taken through the process together.
Document Quality
Our adoption call of the -bis document raised the question of implementations,
and several implementations were discussed on the mailing list.
Personnel
The Shepherd is Tommy Pauly. The Responsible AD is Martin Duke.