Technical Summary
This document describes a Simple Two-way Active Measurement Protocol
which enables the measurement of both one-way and round-trip
performance metrics like delay, delay variation, and packet loss.
Working Group Summary
The draft was first submitted in October 2017, has been reviewed by a fair
number of people in the IPPM working group, has had a fair number of
supporters, and no objections from the working group. The IPPM working
group is also working on a companion draft, draft-ietf-ippm-stamp-yang,
which defines a YANG data model for STAMP. This companion draft will
be sent to the IESG for publication in the future.
Document Quality
The current version of the draft is clear, seems to have resolved all the
issues, and has the consensus of the working group. One of the main
issues that was discussed in the context of this draft is the security
considerations. Two main questions were raised: one regarding the size
of the integrity protection HMAC, and the other regarding whether
encryption is required for STAMP or not. Arguments were made both ways.
After IETF 103 the authors proposed the solution that is in the current
draft with no objections from the working group: regarding the first issue,
the HMAC is based on a SHA-256 truncated to 128 bits, and regarding the
second issue, the draft does not define an encryption mechanism, but
states that encryption may be provided at higher layers.
Personnel
The document shepherd is Tal Mizrahi, and the responsible area director is Mirja Kühlewind.