Cisco Systems Cisco Systems This document proposes extensions to [RFC2544] throughput search by defining a new methodology called Multiple Loss Ratio search (MLRsearch). MLRsearch aims to minimize search duration, support multiple loss ratio searches, and enhance result repeatability and comparability. The primary reason for extending [RFC2544] is to address the challenges of evaluating and testing the data planes of software- based networking systems. To give users more freedom, MLRsearch provides additional configuration options such as allowing multiple short trials per load instead of one large trial, tolerating a certain percentage of trial results with higher loss, and supporting the search for multiple goals with varying loss ratios.