ist-level-5"><li class="ez-toc-heading-level-5"><a class="ez-toc-link ez-toc-heading-6" href="#Zero_Window" title="Zero Window">Zero Window</a></li><li class="ez-toc-page-1 ez-toc-heading-level-5"><a class="ez-toc-link ez-toc-heading-7" href="#Silly_Window_Syndrome" title="Silly Window Syndrome">Silly Window Syndrome</a></li></ul></li><li class="ez-toc-page-1 ez-toc-heading-level-4"><a class="ez-toc-link ez-toc-heading-8" href="#TCP%E7%9A%84%E6%8B%A5%E5%A1%9E%E5%A4%84%E7%90%86_%E2%80%93_Congestion_Handling"