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---
title: 101 Switching Protocols
slug: Web/HTTP/Status/101
tags:
- HTTP
- HTTP Status Code
- Informational
- Reference
- WebSockets
translation_of: Web/HTTP/Status/101
---
<div>{{HTTPSidebar}}</div>
<p>HTTP <code><strong>101 Switching Protocols</strong></code>는 클라이언트가 {{HTTPHeader("Upgrade")}} 헤더를 통해 요청한 것에 따라 서버가 프로토콜을 바꾼다는 것을 알려주는 응답 코드입니다.</p>
<p>서버는 어떤 프로토콜로 바꾸는지를 응답의 {{HTTPHeader("Upgrade")}} 헤더에 담습니다. 구체적인 절차는 <a href="/en-US/docs/Web/HTTP/Protocol_upgrade_mechanism">프로토콜 업데이트 메커니즘</a>에 기술되어 있습니다.</p>
<h2 id="상태">상태</h2>
<pre class="syntaxbox">101 Switching Protocols</pre>
<h2 id="예제">예제</h2>
<p><code><strong>101 Switching Protocols</strong></code>는 <a href="/ko/docs/Web/API/WebSockets_API">WebSockets</a>와 함께 사용할 수 있습니다.</p>
<pre>HTTP/1.1 101 Switching Protocols
Upgrade: websocket
Connection: Upgrade</pre>
<h2 id="명세">명세</h2>
<table class="standard-table">
<tbody>
<tr>
<th scope="col">Specification</th>
<th scope="col">Title</th>
</tr>
<tr>
<td>{{RFC("7231", "101 Switching Protocol" , "6.2.2")}}</td>
<td>Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content</td>
</tr>
</tbody>
</table>
<h2 id="같이_보기">같이 보기</h2>
<ul>
<li><a href="/en-US/docs/Web/HTTP/Protocol_upgrade_mechanism">Protocol upgrade mechanism</a></li>
<li><a href="/en-US/docs/Web/API/WebSockets_API">WebSockets</a></li>
<li>{{HTTPHeader("Upgrade")}}</li>
<li>{{HTTPStatus("426")}} <code>Upgrade Required</code></li>
</ul>
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