 property="og:title" content="概念"><meta property="og:type" content="website"><meta property="og:description" content="一些概念，理解它们有助于您更好地了解 Istio 系统的不同部分及其使用的抽象。"><meta property="og:url" content="/v1.21/zh/docs/concepts/"><meta property="og:image" content="https://raw.githubusercontent.com/istio/istio.io/master/static/img/istio-social.png"><meta property="og:image:alt" content="The Istio sailboat logo"><meta property="og:image:width" content