<h1 id="udp">UDP<a aria-hidden="true" class="anchor-heading icon-link" href="#udp"></a></h1>
<p><abbr title="User Datagram Protocol">UDP</abbr> provides best effort delivery of packets, and is commonly used for latency-sensitive applications such as <abbr title="Voice over Internet Protocol">VoIP</abbr>, or online games.</p>
<h1 id="segment">Segment<a aria-hidden="true" class="anchor-heading icon-link" href="#segment"></a></h1>
<p><img src="../..//assets/diagrams/p.r.comp.net.udp.drawio-0.svg" alt="UDP datagram structure" style="width:100%;"></p>
<p>The header comprises:</p>
<ul>
<li><strong>Source port</strong> specifies the source of the traffic.</li>
<li><strong>Destination port</strong> specifies the destination port of the traffic.</li>
<li><strong>Length</strong> contains the total size of the segment, including the data and header sections.</li>
<li><strong>Checksum</strong> contains a CRC for verifying integrity.</li>
</ul>
<hr>
<strong>Backlinks</strong>
<ul>
<li><a href="/notes/f4578b78-ef2d-4f26-8f17-4ea8de6d227a">Networking (public)</a></li>
<li><a href="/notes/62483d26-030e-4e3f-afe3-c4de3613a46c">DNS (public)</a></li>
<li><a href="/notes/171ci4esccg4f43wiiiz7af">Jaeger (public)</a></li>
<li><a href="/notes/e8k5prg5foq8y3pvel9hvob">VXLAN (public)</a></li>
</ul>


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Hi, I'm Luke 👋

I'm a software engineer turned site reliability engineer. I'm currently big on knowledge management and learning.

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