Shepherd writeup

1. Summary
The document shepherd is Jen Linkova. The IRTF Chair is Colin Perkins.

The document provides an overview and and analysis of  past efforts to develop and deploy Path Aware techniques, most of which were unsuccessful or at most partially successful, in order to extract insights and lessons for path-aware networking researchers.

2. Review and Consensus
The document has been thoughtful reviewed by the RG. It passed the RG Last Call. All comments received during the previous review cycles and the RGLC are addressed in the -12 version of the document.
The research group is quite sure that publishing this document as an informational RFC will be a useful reference for future work in the PANRG as well as other RGs and IETF WGs.

3. Intellectual Property
Each author has confirmed conformance with BCP 78/79. There are no IPR disclosures on the document.

4. Other Points
There are no normative references in this document. The document introduces no new security considerations.
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