From 37190b05b522890388d22f55d11d456635e89559 Mon Sep 17 00:00:00 2001
From: bt <bt@rctt.net>
Date: Sun, 29 Mar 2026 22:11:02 +0200
Subject: [docs] Use sequence diagram for sequential operations description

---
 docs/rfc.html | 41 +++++++++++++++++++++++++----------------
 1 file changed, 25 insertions(+), 16 deletions(-)

(limited to 'docs/rfc.html')

diff --git a/docs/rfc.html b/docs/rfc.html
index 62a6738..86eaadf 100644
--- a/docs/rfc.html
+++ b/docs/rfc.html
@@ -1802,22 +1802,31 @@ specific operation (for example incoming message) cannot interrupt this process.
           <h4 id="name-connection-initialisation">
 <a href="#section-2.5.1" class="section-number selfRef">2.5.1. </a><a href="#name-connection-initialisation" class="section-name selfRef">Connection initialisation</a>
           </h4>
-<ul class="compact">
-<li class="compact" id="section-2.5.1-1.1">Client: Initialise TCP connection.<a href="#section-2.5.1-1.1" class="pilcrow">¶</a>
-</li>
-            <li class="compact" id="section-2.5.1-1.2">Client:  Send <em>handshake</em>.<a href="#section-2.5.1-1.2" class="pilcrow">¶</a>
-</li>
-            <li class="compact" id="section-2.5.1-1.3">Server: If <em>major</em> version of protocol differs close the connection.<a href="#section-2.5.1-1.3" class="pilcrow">¶</a>
-</li>
-            <li class="compact" id="section-2.5.1-1.4">Server: Otherwise send <em>handshake</em>.<a href="#section-2.5.1-1.4" class="pilcrow">¶</a>
-</li>
-            <li class="compact" id="section-2.5.1-1.5">Client: Send <em>auth</em>.<a href="#section-2.5.1-1.5" class="pilcrow">¶</a>
-</li>
-            <li class="compact" id="section-2.5.1-1.6">Server: If user credentials does not match send <em>error</em> with <em>auth_failed</em>.<a href="#section-2.5.1-1.6" class="pilcrow">¶</a>
-</li>
-            <li class="compact" id="section-2.5.1-1.7">Server: Otherwise send <em>success</em>.<a href="#section-2.5.1-1.7" class="pilcrow">¶</a>
-</li>
-          </ul>
+<div class="lang-ascii-art sourcecode" id="section-2.5.1-1">
+<pre>+--------+                   +--------+
+| Client |                   | Server |
++----+---+                   +----+---+
+     |                            |
+     | Initialise TCP connection  |
+     +---------------------------&gt;|
+     |                            |
+     | Send [Handshake]           |
+     +---------------------------&gt;|
+     |                            |
+     |                            +- If [ver_major] does not match server
+     |                            |  protocol version close the connection
+     |                            |
+     | Send [Auth]                |
+     +---------------------------&gt;|
+     |                            |
+     | Send [Error 0x01]          |
+     |&lt;---------------------------+- If [username] or [password] does not match
+     |                            |  and close the connection
+     |                            |
+     | Send [Sucesss]             |
+     |&lt;---------------------------+
+</pre><a href="#section-2.5.1-1" class="pilcrow">¶</a>
+</div>
 </section>
 </div>
 </section>
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