Paper: Performance Monitoring in Encrypted Networks: PDMv2 (Nalini Elkins, Mike Ackermann, Mohit P. Tahiliani, Dhruv Dhody, Prof. Tommaso Pecorella)
slides-mtenws-paper-performance-monitoring-in-encrypted-networks-pdmv-elkins-ackermann-tahiliani-dhody-pecorella-00

Our proposal is to provide performance information in a uniform way for connections using protocols which encrypt the application payload, such as TLS, without the need to decrypt the payload. This preserves the privacy of the payload. PDMv2 also provides performance information for connections which encrypt the Transport Layer header, such as QUIC, again while preserving the privacy of the payload as well as Transport Header.