https://5py.top/tags/udp/Recent content in Udp on 吾便宜Hugo -- gohugo.iozh-CN© 2026 吾便宜Wed, 10 Jun 2026 14:40:00 +0800https://5py.top/posts/quic-explained/Wed, 10 Jun 2026 14:40:00 +0800https://5py.top/posts/quic-explained/<figure class="article-illustration"> <img src="https://img.5py.top/img/wireguard-vless.svg" alt="QUIC 协议原理示意" loading="lazy" decoding="async"> </figure> <p><em>插图来源：<a href="https://storyset.com/" target="_blank" rel="noreferrer">Storyset</a></em></p> <h2 class="relative group">一句话 <div id="一句话" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100 select-none"> <a class="text-primary-300 dark:text-neutral-700 !no-underline" href="#%e4%b8%80%e5%8f%a5%e8%af%9d" aria-label="锚点">#</a> </span> </h2> <p>QUIC = 跑在 UDP 上的新一代传输协议，目标是比 TCP 更快、更稳。它火了之后，Hysteria2、TUIC 这些代理协议都跑到了它上面。</p>https://5py.top/posts/tcp-vs-udp-blocking/Fri, 29 May 2026 10:18:00 +0800https://5py.top/posts/tcp-vs-udp-blocking/<figure class="article-illustration"> <img src="https://img.5py.top/img/airport-safety.svg" alt="TCP 与 UDP 阻断症状对比" loading="lazy" decoding="async"> </figure> <p><em>插图来源：<a href="https://storyset.com/" target="_blank" rel="noreferrer">Storyset</a></em></p> <p>&ldquo;连不上了&quot;是最让人头大的描述，因为背后的原因可能完全不同。同样是阻断，TCP 被动了手脚和 UDP 被动了手脚，症状天差地别。学会分辨，能少走很多弯路。</p>https://5py.top/posts/udp-qos-troubleshoot/Sat, 11 Apr 2026 09:05:00 +0800https://5py.top/posts/udp-qos-troubleshoot/<p>去年有段时间，我的 Hysteria2 节点晚上 8 点准时变慢，测速从高峰值掉到只剩零头，换节点、换机场都没用。折腾两周才定位到：运营商在晚高峰对 UDP 做 QoS 限速。这事在 UDP 协议用户里相当常见，今天把排查清单整理出来，帮你少走弯路。</p>