div></div><div id=endnotes-container aria-hidden=true><h2>Links</h2><ol id=endnotes></ol></div></div><div class=toc-container><nav class=toc aria-label="Table of Contents"><div id=toc><ol><li role=none aria-label=Metrics><a href=#metrics>Metrics</a><ol><li role=none aria-label="Proxy-level metrics"><a href=#proxy-level-metrics>Proxy-level metrics</a><li role=none aria-label="Service-level metrics"><a href=#service-level-metrics>Service-level metrics</a><li role=none aria-label="Control plane metrics"><a hre