--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/xml/en/docs/http/ngx_http_spdy_module.xml	Wed Mar 20 15:00:06 2013 +0400
@@ -0,0 +1,120 @@
+<?xml version="1.0"?>
+
+<!--
+  Copyright (C) Nginx, Inc.
+  -->
+
+<!DOCTYPE module SYSTEM "../../../../dtd/module.dtd">
+
+<module name="Module ngx_http_spdy_module"
+        link="/en/docs/http/ngx_http_spdy_module.html"
+        lang="en"
+        rev="1">
+
+<section id="summary">
+
+<para>
+The <literal>ngx_http_spdy_module</literal> module provides experimental
+support for <link url="http://www.chromium.org/spdy/spdy-protocol">SPDY</link>.
+Currently,
+<link url="http://www.chromium.org/spdy/spdy-protocol/spdy-protocol-draft2">draft
+2</link> of SPDY protocol is implemented.
+</para>
+
+<para>
+This module is not built by default, it should be enabled with
+the <literal>--with-http_spdy_module</literal>
+configuration parameter.
+</para>
+
+</section>
+
+
+<section id="bugs" name="Known Bugs">
+
+<para>
+The module is experimental, caveat emptor applies.
+</para>
+
+<para>
+Current implementation of SPDY protocol does not support “server push”.
+</para>
+
+<para>
+Processing of requests from SPDY connections cannot be rate
+<link doc="ngx_http_limit_req_module.xml">limited</link>.
+</para>
+
+</section>
+
+
+<section id="example" name="Example Configuration">
+
+<para>
+<example>
+server {
+    listen 443 ssl spdy;
+
+    ssl_certificate server.crt;
+    ssl_certificate_key server.key;
+    ...
+}
+</example>
+<note>
+Note that in order to accept both
+<link doc="ngx_http_ssl_module.xml">HTTPS</link> and SPDY connections
+simultaneously on the same port,
+<link url="http://www.openssl.org">OpenSSL</link> library used should support
+“Next Protocol Negotiation” TLS extension, available since OpenSSL
+version 1.0.1.
+</note>
+</para>
+
+</section>
+
+
+<section id="directives" name="Directives">
+
+<directive name="spdy_headers_comp">
+<syntax><value>level</value></syntax>
+<default>0</default>
+<context>http</context>
+<context>server</context>
+
+<para>
+Sets a header compression <value>level</value> of a response in a range from
+1 (fastest, less compression) to 9 (slowest, best compression).
+The special value 0 turns off header compression.
+</para>
+
+</directive>
+
+</section>
+
+
+<section id="variables" name="Embedded Variables">
+
+<para>
+The <literal>ngx_http_spdy_module</literal> module
+supports the following embedded variables:
+<list type="tag" compact="no">
+
+<tag-name id="var_spdy"><var>$spdy</var></tag-name>
+<tag-desc>
+SPDY protocol version for SPDY connections,
+or an empty string otherwise;
+</tag-desc>
+
+<tag-name id="var_spdy_request_priority"><var>$spdy_request_priority</var>
+</tag-name>
+<tag-desc>
+request priority for SPDY connections,
+or an empty string otherwise.
+</tag-desc>
+
+</list>
+</para>
+
+</section>
+
+</module>