937 lines
55 KiB
HTML
937 lines
55 KiB
HTML
|
<!DOCTYPE HTML>
|
|||
|
|
<html lang="en" class="light sidebar-visible" dir="ltr">
|
|||
|
|
<head>
|
|||
|
|
<!-- Book generated using mdBook -->
|
|||
|
|
<meta charset="UTF-8">
|
|||
|
|
<title>Creation of a simple tsn network - Eden-sim - User Guide</title>
|
|||
|
|
|
|||
|
|
|
|||
|
|
<!-- Custom HTML head -->
|
|||
|
|
|
|||
|
|
<meta name="description" content="">
|
|||
|
|
<meta name="viewport" content="width=device-width, initial-scale=1">
|
|||
|
|
<meta name="theme-color" content="#ffffff">
|
|||
|
|
|
|||
|
|
<link rel="icon" href="../favicon-de23e50b.svg">
|
|||
|
|
<link rel="shortcut icon" href="../favicon-8114d1fc.png">
|
|||
|
|
<link rel="stylesheet" href="../css/variables-8adf115d.css">
|
|||
|
|
<link rel="stylesheet" href="../css/general-2459343d.css">
|
|||
|
|
<link rel="stylesheet" href="../css/chrome-ae938929.css">
|
|||
|
|
<link rel="stylesheet" href="../css/print-9e4910d8.css" media="print">
|
|||
|
|
|
|||
|
|
<!-- Fonts -->
|
|||
|
|
<link rel="stylesheet" href="../fonts/fonts-9644e21d.css">
|
|||
|
|
|
|||
|
|
<!-- Highlight.js Stylesheets -->
|
|||
|
|
<link rel="stylesheet" id="mdbook-highlight-css" href="../highlight-493f70e1.css">
|
|||
|
|
<link rel="stylesheet" id="mdbook-tomorrow-night-css" href="../tomorrow-night-4c0ae647.css">
|
|||
|
|
<link rel="stylesheet" id="mdbook-ayu-highlight-css" href="../ayu-highlight-3fdfc3ac.css">
|
|||
|
|
|
|||
|
|
<!-- Custom theme stylesheets -->
|
|||
|
|
|
|||
|
|
|
|||
|
|
<!-- Provide site root and default themes to javascript -->
|
|||
|
|
<script>
|
|||
|
|
const path_to_root = "../";
|
|||
|
|
const default_light_theme = "light";
|
|||
|
|
const default_dark_theme = "navy";
|
|||
|
|
window.path_to_searchindex_js = "../searchindex-43c2d326.js";
|
|||
|
|
</script>
|
|||
|
|
<!-- Start loading toc.js asap -->
|
|||
|
|
<script src="../toc-81bc4348.js"></script>
|
|||
|
|
</head>
|
|||
|
|
<body>
|
|||
|
|
<div id="mdbook-help-container">
|
|||
|
|
<div id="mdbook-help-popup">
|
|||
|
|
<h2 class="mdbook-help-title">Keyboard shortcuts</h2>
|
|||
|
|
<div>
|
|||
|
|
<p>Press <kbd>←</kbd> or <kbd>→</kbd> to navigate between chapters</p>
|
|||
|
|
<p>Press <kbd>S</kbd> or <kbd>/</kbd> to search in the book</p>
|
|||
|
|
<p>Press <kbd>?</kbd> to show this help</p>
|
|||
|
|
<p>Press <kbd>Esc</kbd> to hide this help</p>
|
|||
|
|
</div>
|
|||
|
|
</div>
|
|||
|
|
</div>
|
|||
|
|
<div id="mdbook-body-container">
|
|||
|
|
<!-- Work around some values being stored in localStorage wrapped in quotes -->
|
|||
|
|
<script>
|
|||
|
|
try {
|
|||
|
|
let theme = localStorage.getItem('mdbook-theme');
|
|||
|
|
let sidebar = localStorage.getItem('mdbook-sidebar');
|
|||
|
|
|
|||
|
|
if (theme.startsWith('"') && theme.endsWith('"')) {
|
|||
|
|
localStorage.setItem('mdbook-theme', theme.slice(1, theme.length - 1));
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
if (sidebar.startsWith('"') && sidebar.endsWith('"')) {
|
|||
|
|
localStorage.setItem('mdbook-sidebar', sidebar.slice(1, sidebar.length - 1));
|
|||
|
|
}
|
|||
|
|
} catch (e) { }
|
|||
|
|
</script>
|
|||
|
|
|
|||
|
|
<!-- Set the theme before any content is loaded, prevents flash -->
|
|||
|
|
<script>
|
|||
|
|
const default_theme = window.matchMedia("(prefers-color-scheme: dark)").matches ? default_dark_theme : default_light_theme;
|
|||
|
|
let theme;
|
|||
|
|
try { theme = localStorage.getItem('mdbook-theme'); } catch(e) { }
|
|||
|
|
if (theme === null || theme === undefined) { theme = default_theme; }
|
|||
|
|
const html = document.documentElement;
|
|||
|
|
html.classList.remove('light')
|
|||
|
|
html.classList.add(theme);
|
|||
|
|
html.classList.add("js");
|
|||
|
|
</script>
|
|||
|
|
|
|||
|
|
<input type="checkbox" id="mdbook-sidebar-toggle-anchor" class="hidden">
|
|||
|
|
|
|||
|
|
<!-- Hide / unhide sidebar before it is displayed -->
|
|||
|
|
<script>
|
|||
|
|
let sidebar = null;
|
|||
|
|
const sidebar_toggle = document.getElementById("mdbook-sidebar-toggle-anchor");
|
|||
|
|
if (document.body.clientWidth >= 1080) {
|
|||
|
|
try { sidebar = localStorage.getItem('mdbook-sidebar'); } catch(e) { }
|
|||
|
|
sidebar = sidebar || 'visible';
|
|||
|
|
} else {
|
|||
|
|
sidebar = 'hidden';
|
|||
|
|
sidebar_toggle.checked = false;
|
|||
|
|
}
|
|||
|
|
if (sidebar === 'visible') {
|
|||
|
|
sidebar_toggle.checked = true;
|
|||
|
|
} else {
|
|||
|
|
html.classList.remove('sidebar-visible');
|
|||
|
|
}
|
|||
|
|
</script>
|
|||
|
|
|
|||
|
|
<nav id="mdbook-sidebar" class="sidebar" aria-label="Table of contents">
|
|||
|
|
<!-- populated by js -->
|
|||
|
|
<mdbook-sidebar-scrollbox class="sidebar-scrollbox"></mdbook-sidebar-scrollbox>
|
|||
|
|
<noscript>
|
|||
|
|
<iframe class="sidebar-iframe-outer" src="../toc.html"></iframe>
|
|||
|
|
</noscript>
|
|||
|
|
<div id="mdbook-sidebar-resize-handle" class="sidebar-resize-handle">
|
|||
|
|
<div class="sidebar-resize-indicator"></div>
|
|||
|
|
</div>
|
|||
|
|
</nav>
|
|||
|
|
|
|||
|
|
<div id="mdbook-page-wrapper" class="page-wrapper">
|
|||
|
|
|
|||
|
|
<div class="page">
|
|||
|
|
<div id="mdbook-menu-bar-hover-placeholder"></div>
|
|||
|
|
<div id="mdbook-menu-bar" class="menu-bar sticky">
|
|||
|
|
<div class="left-buttons">
|
|||
|
|
<label id="mdbook-sidebar-toggle" class="icon-button" for="mdbook-sidebar-toggle-anchor" title="Toggle Table of Contents" aria-label="Toggle Table of Contents" aria-controls="mdbook-sidebar">
|
|||
|
|
<span class=fa-svg><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 448 512"><!--! Font Awesome Free 6.2.0 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License) Copyright 2022 Fonticons, Inc. --><path d="M0 96C0 78.3 14.3 64 32 64H416c17.7 0 32 14.3 32 32s-14.3 32-32 32H32C14.3 128 0 113.7 0 96zM0 256c0-17.7 14.3-32 32-32H416c17.7 0 32 14.3 32 32s-14.3 32-32 32H32c-17.7 0-32-14.3-32-32zM448 416c0 17.7-14.3 32-32 32H32c-17.7 0-32-14.3-32-32s14.3-32 32-32H416c17.7 0 32 14.3 32 32z"/></svg></span>
|
|||
|
|
</label>
|
|||
|
|
<button id="mdbook-theme-toggle" class="icon-button" type="button" title="Change theme" aria-label="Change theme" aria-haspopup="true" aria-expanded="false" aria-controls="mdbook-theme-list">
|
|||
|
|
<span class=fa-svg><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 576 512"><!--! Font Awesome Free 6.2.0 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License) Copyright 2022 Fonticons, Inc. --><path d="M371.3 367.1c27.3-3.9 51.9-19.4 67.2-42.9L600.2 74.1c12.6-19.5 9.4-45.3-7.6-61.2S549.7-4.4 531.1 9.6L294.4 187.2c-24 18-38.2 46.1-38.4 76.1L371.3 367.1zm-19.6 25.4l-116-104.4C175.9 290.3 128 339.6 128 400c0 3.9 .2 7.8 .6 11.6c1.8 17.5-10.2 36.4-27.8 36.4H96c-17.7 0-32 14.3-32 32s14.3 32 32 32H240c61.9 0 112-50.1 112-112c0-2.5-.1-5-.2-7.5z"/></svg></span>
|
|||
|
|
</button>
|
|||
|
|
<ul id="mdbook-theme-list" class="theme-popup" aria-label="Themes" role="menu">
|
|||
|
|
<li role="none"><button role="menuitem" class="theme" id="mdbook-theme-default_theme">Auto</button></li>
|
|||
|
|
<li role="none"><button role="menuitem" class="theme" id="mdbook-theme-light">Light</button></li>
|
|||
|
|
<li role="none"><button role="menuitem" class="theme" id="mdbook-theme-rust">Rust</button></li>
|
|||
|
|
<li role="none"><button role="menuitem" class="theme" id="mdbook-theme-coal">Coal</button></li>
|
|||
|
|
<li role="none"><button role="menuitem" class="theme" id="mdbook-theme-navy">Navy</button></li>
|
|||
|
|
<li role="none"><button role="menuitem" class="theme" id="mdbook-theme-ayu">Ayu</button></li>
|
|||
|
|
</ul>
|
|||
|
|
<button id="mdbook-search-toggle" class="icon-button" type="button" title="Search (`/`)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="/ s" aria-controls="mdbook-searchbar">
|
|||
|
|
<span class=fa-svg><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><!--! Font Awesome Free 6.2.0 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License) Copyright 2022 Fonticons, Inc. --><path d="M416 208c0 45.9-14.9 88.3-40 122.7L502.6 457.4c12.5 12.5 12.5 32.8 0 45.3s-32.8 12.5-45.3 0L330.7 376c-34.4 25.2-76.8 40-122.7 40C93.1 416 0 322.9 0 208S93.1 0 208 0S416 93.1 416 208zM208 352c79.5 0 144-64.5 144-144s-64.5-144-144-144S64 128.5 64 208s64.5 144 144 144z"/></svg></span>
|
|||
|
|
</button>
|
|||
|
|
</div>
|
|||
|
|
|
|||
|
|
<h1 class="menu-title">Eden-sim - User Guide</h1>
|
|||
|
|
|
|||
|
|
<div class="right-buttons">
|
|||
|
|
<a href="../print.html" title="Print this book" aria-label="Print this book">
|
|||
|
|
<span class=fa-svg id="print-button"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><!--! Font Awesome Free 6.2.0 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License) Copyright 2022 Fonticons, Inc. --><path d="M128 0C92.7 0 64 28.7 64 64v96h64V64H354.7L384 93.3V160h64V93.3c0-17-6.7-33.3-18.7-45.3L400 18.7C388 6.7 371.7 0 354.7 0H128zM384 352v32 64H128V384 368 352H384zm64 32h32c17.7 0 32-14.3 32-32V256c0-35.3-28.7-64-64-64H64c-35.3 0-64 28.7-64 64v96c0 17.7 14.3 32 32 32H64v64c0 35.3 28.7 64 64 64H384c35.3 0 64-28.7 64-64V384zm-16-88c-13.3 0-24-10.7-24-24s10.7-24 24-24s24 10.7 24 24s-10.7 24-24 24z"/></svg></span>
|
|||
|
|
</a>
|
|||
|
|
|
|||
|
|
</div>
|
|||
|
|
</div>
|
|||
|
|
|
|||
|
|
<div id="mdbook-search-wrapper" class="hidden">
|
|||
|
|
<form id="mdbook-searchbar-outer" class="searchbar-outer">
|
|||
|
|
<div class="search-wrapper">
|
|||
|
|
<input type="search" id="mdbook-searchbar" name="searchbar" placeholder="Search this book ..." aria-controls="mdbook-searchresults-outer" aria-describedby="searchresults-header">
|
|||
|
|
<div class="spinner-wrapper">
|
|||
|
|
<span class=fa-svg id="fa-spin"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><!--! Font Awesome Free 6.2.0 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License) Copyright 2022 Fonticons, Inc. --><path d="M304 48c0-26.5-21.5-48-48-48s-48 21.5-48 48s21.5 48 48 48s48-21.5 48-48zm0 416c0-26.5-21.5-48-48-48s-48 21.5-48 48s21.5 48 48 48s48-21.5 48-48zM48 304c26.5 0 48-21.5 48-48s-21.5-48-48-48s-48 21.5-48 48s21.5 48 48 48zm464-48c0-26.5-21.5-48-48-48s-48 21.5-48 48s21.5 48 48 48s48-21.5 48-48zM142.9 437c18.7-18.7 18.7-49.1 0-67.9s-49.1-18.7-67.9 0s-18.7 49.1 0 67.9s49.1 18.7 67.9 0zm0-294.2c18.7-18.7 18.7-49.1 0-67.9S93.7 56.2 75 75s-18.7 49.1 0 67.9s49.1 18.7 67.9 0zM369.1 437c18.7 18.7 49.1 18.7 67.9 0s18.7-49.1 0-67.9s-49.1-18.7-67.9 0s-18.7 49.1 0 67.9z"/></svg></span>
|
|||
|
|
</div>
|
|||
|
|
</div>
|
|||
|
|
</form>
|
|||
|
|
<div id="mdbook-searchresults-outer" class="searchresults-outer hidden">
|
|||
|
|
<div id="mdbook-searchresults-header" class="searchresults-header"></div>
|
|||
|
|
<ul id="mdbook-searchresults">
|
|||
|
|
</ul>
|
|||
|
|
</div>
|
|||
|
|
</div>
|
|||
|
|
|
|||
|
|
<!-- Apply ARIA attributes after the sidebar and the sidebar toggle button are added to the DOM -->
|
|||
|
|
<script>
|
|||
|
|
document.getElementById('mdbook-sidebar-toggle').setAttribute('aria-expanded', sidebar === 'visible');
|
|||
|
|
document.getElementById('mdbook-sidebar').setAttribute('aria-hidden', sidebar !== 'visible');
|
|||
|
|
Array.from(document.querySelectorAll('#mdbook-sidebar a')).forEach(function(link) {
|
|||
|
|
link.setAttribute('tabIndex', sidebar === 'visible' ? 0 : -1);
|
|||
|
|
});
|
|||
|
|
</script>
|
|||
|
|
|
|||
|
|
<div id="mdbook-content" class="content">
|
|||
|
|
<main>
|
|||
|
|
<h1 id="creation-of-a-simple-tsn-network"><a class="header" href="#creation-of-a-simple-tsn-network">Creation of a simple tsn network</a></h1>
|
|||
|
|
<h2 id="introduction"><a class="header" href="#introduction">Introduction</a></h2>
|
|||
|
|
<p>In this chapter, we will explore how to transform the Ethernet network simulation script from the previous chapter into a TSN network simulation script. Then, we will discuss how to instantiate and configure the various TSN mechanisms supported by the simulation library.</p>
|
|||
|
|
<p>Note that the operation and configuration of TSN mechanisms will not be explained in depth. This chapter assumes that the reader is familiar with the details of the mechanisms implemented.</p>
|
|||
|
|
<h2 id="from-ethernet-to-tsn-simulation"><a class="header" href="#from-ethernet-to-tsn-simulation">From Ethernet to TSN simulation</a></h2>
|
|||
|
|
<p>Let’s start by importing two new objects: TsnNode and TsnNetDevice.</p>
|
|||
|
|
<pre><code class="language-c++">[...]
|
|||
|
|
#include "ns3/tsn-node.h"
|
|||
|
|
#include "ns3/tsn-net-device.h"
|
|||
|
|
[...]
|
|||
|
|
</code></pre>
|
|||
|
|
<p>Next, it is necessary to replace the node and EthernetNetDevice objects with their TSN versions in order to instantiate the various TSN mechanisms described below.</p>
|
|||
|
|
<pre><code class="language-c++">[...]
|
|||
|
|
//Create four nodes
|
|||
|
|
Ptr<TsnNode> n0 = CreateObject<TsnNode>();
|
|||
|
|
Names::Add("ES1", n0);
|
|||
|
|
Ptr<TsnNode> n1 = CreateObject<TsnNode>();
|
|||
|
|
Names::Add("ES2", n1);
|
|||
|
|
Ptr<TsnNode> n2 = CreateObject<TsnNode>();
|
|||
|
|
Names::Add("ES3", n2);
|
|||
|
|
Ptr<TsnNode> n3 = CreateObject<TsnNode>();
|
|||
|
|
Names::Add("SW", n3);
|
|||
|
|
|
|||
|
|
//Create and add a netDevice to each end-station node
|
|||
|
|
Ptr<TsnNetDevice> net0 = CreateObject<TsnNetDevice>();
|
|||
|
|
n0->AddDevice(net0);
|
|||
|
|
Names::Add("ES1#01", net0);
|
|||
|
|
Ptr<TsnNetDevice> net1 = CreateObject<TsnNetDevice>();
|
|||
|
|
n1->AddDevice(net1);
|
|||
|
|
Names::Add("ES2#01", net1);
|
|||
|
|
Ptr<TsnNetDevice> net2 = CreateObject<TsnNetDevice>();
|
|||
|
|
n2->AddDevice(net2);
|
|||
|
|
Names::Add("ES3#01", net2);
|
|||
|
|
//Create and add a netDevice to each switch port
|
|||
|
|
Ptr<TsnNetDevice> swnet0 = CreateObject<TsnNetDevice>();
|
|||
|
|
n3->AddDevice(swnet0);
|
|||
|
|
Names::Add("SW#01", swnet0);
|
|||
|
|
Ptr<TsnNetDevice> swnet1 = CreateObject<TsnNetDevice>();
|
|||
|
|
n3->AddDevice(swnet1);
|
|||
|
|
Names::Add("SW#02", swnet1);
|
|||
|
|
Ptr<TsnNetDevice> swnet2 = CreateObject<TsnNetDevice>();
|
|||
|
|
n3->AddDevice(swnet2);
|
|||
|
|
Names::Add("SW#03", swnet2);
|
|||
|
|
[...]
|
|||
|
|
</code></pre>
|
|||
|
|
<p>At this stage, it is possible to run a simulation, but the result will be identical to a simple Ethernet network.</p>
|
|||
|
|
<p>To simplify the illustration of the latency control mechanisms (CBS and TAS), we can make the following modifications to the application:</p>
|
|||
|
|
<pre><code class="language-c++">[...]
|
|||
|
|
//Application description
|
|||
|
|
//ES1 -> ES3 with priority 1
|
|||
|
|
Ptr<EthernetGenerator> app0 = CreateObject<EthernetGenerator>();
|
|||
|
|
app0->Setup(net0);
|
|||
|
|
app0->SetAttribute("Address", AddressValue(net2->GetAddress()));
|
|||
|
|
app0->SetAttribute("BurstSize", UintegerValue(5));
|
|||
|
|
app0->SetAttribute("PayloadSize", UintegerValue(1400));
|
|||
|
|
app0->SetAttribute("Period", TimeValue(Seconds(5)));
|
|||
|
|
app0->SetAttribute("VlanID", UintegerValue(1));
|
|||
|
|
app0->SetAttribute("PCP", UintegerValue(1));
|
|||
|
|
n0->AddApplication(app0);
|
|||
|
|
app0->SetStartTime(Seconds(0));
|
|||
|
|
app0->SetStopTime(Seconds(10));
|
|||
|
|
[...]
|
|||
|
|
</code></pre>
|
|||
|
|
<p>The output of a simulation should look like this:</p>
|
|||
|
|
<pre><code class="language-console">[0/2] Re-checking globbed directories...
|
|||
|
|
[2/2] Linking CXX executable ../build/scratch/ns3.40-book-default
|
|||
|
|
Start of the simulation
|
|||
|
|
+0s ES1:ES1#01 : Pkt #0 sent!
|
|||
|
|
+0s ES1:ES1#01 : Pkt #1 sent!
|
|||
|
|
+0s ES1:ES1#01 : Pkt #2 sent!
|
|||
|
|
+0s ES1:ES1#01 : Pkt #3 sent!
|
|||
|
|
+0s ES1:ES1#01 : Pkt #4 sent!
|
|||
|
|
+0.000233905s ES3:ES3#01 : Pkt #0 received!
|
|||
|
|
+0.000349265s ES3:ES3#01 : Pkt #1 received!
|
|||
|
|
+0.000464625s ES3:ES3#01 : Pkt #2 received!
|
|||
|
|
+0.000579985s ES3:ES3#01 : Pkt #3 received!
|
|||
|
|
+0.000695345s ES3:ES3#01 : Pkt #4 received!
|
|||
|
|
+5s ES1:ES1#01 : Pkt #5 sent!
|
|||
|
|
+5s ES1:ES1#01 : Pkt #6 sent!
|
|||
|
|
+5s ES1:ES1#01 : Pkt #7 sent!
|
|||
|
|
+5s ES1:ES1#01 : Pkt #8 sent!
|
|||
|
|
+5s ES1:ES1#01 : Pkt #9 sent!
|
|||
|
|
+5.00023s ES3:ES3#01 : Pkt #5 received!
|
|||
|
|
+5.00035s ES3:ES3#01 : Pkt #6 received!
|
|||
|
|
+5.00046s ES3:ES3#01 : Pkt #7 received!
|
|||
|
|
+5.00058s ES3:ES3#01 : Pkt #8 received!
|
|||
|
|
+5.0007s ES3:ES3#01 : Pkt #9 received!
|
|||
|
|
End of the simulation
|
|||
|
|
</code></pre>
|
|||
|
|
<h2 id="cbs"><a class="header" href="#cbs">CBS</a></h2>
|
|||
|
|
<p>To instantiate a CBS, we must first add its dependency.</p>
|
|||
|
|
<pre><code class="language-c++">#include "ns3/cbs.h"
|
|||
|
|
</code></pre>
|
|||
|
|
<p>It is then possible to instantiate a CBS and link it to an output port queue. In the following example, we instantiate the CBS on the output port of the transmitting end station.</p>
|
|||
|
|
<pre><code class="language-c++">[...]
|
|||
|
|
//Create 2 output port FIFOs for each netDevice.
|
|||
|
|
Ptr<Cbs> cbs = CreateObject<Cbs>();
|
|||
|
|
cbs->SetTsnNetDevice(net0);
|
|||
|
|
cbs->SetAttribute("IdleSlope", DataRateValue(DataRate("20Kb/s")));
|
|||
|
|
cbs->SetAttribute("portTransmitRate", DataRateValue(DataRate("100Mb/s")));
|
|||
|
|
net0->SetQueue(CreateObject<DropTailQueue<Packet>>()); //FIFO 0
|
|||
|
|
net0->SetQueue(CreateObject<DropTailQueue<Packet>>(), cbs); //FIFO 1
|
|||
|
|
|
|||
|
|
for (int i=0; i<2; i++){
|
|||
|
|
net1->SetQueue(CreateObject<DropTailQueue<Packet>>());
|
|||
|
|
net2->SetQueue(CreateObject<DropTailQueue<Packet>>());
|
|||
|
|
swnet0->SetQueue(CreateObject<DropTailQueue<Packet>>());
|
|||
|
|
swnet1->SetQueue(CreateObject<DropTailQueue<Packet>>());
|
|||
|
|
swnet2->SetQueue(CreateObject<DropTailQueue<Packet>>());
|
|||
|
|
}
|
|||
|
|
[...]
|
|||
|
|
</code></pre>
|
|||
|
|
<p>When launching the simulation, we can now see that the reception of burst frames is spread out over time due to the waiting time imposed by the CBS credit reload on the emission port.</p>
|
|||
|
|
<pre><code class="language-console">[0/2] Re-checking globbed directories...
|
|||
|
|
[2/2] Linking CXX executable ../build/scratch/ns3.40-book-default
|
|||
|
|
Start of the simulation
|
|||
|
|
+0s ES1:ES1#01 : Pkt #0 sent!
|
|||
|
|
+0s ES1:ES1#01 : Pkt #1 sent!
|
|||
|
|
+0s ES1:ES1#01 : Pkt #2 sent!
|
|||
|
|
+0s ES1:ES1#01 : Pkt #3 sent!
|
|||
|
|
+0s ES1:ES1#01 : Pkt #4 sent!
|
|||
|
|
+0.000233905s ES3:ES3#01 : Pkt #0 received!
|
|||
|
|
+0.577031s ES3:ES3#01 : Pkt #1 received!
|
|||
|
|
+1.15383s ES3:ES3#01 : Pkt #2 received!
|
|||
|
|
+1.73063s ES3:ES3#01 : Pkt #3 received!
|
|||
|
|
+2.30743s ES3:ES3#01 : Pkt #4 received!
|
|||
|
|
+5s ES1:ES1#01 : Pkt #5 sent!
|
|||
|
|
+5s ES1:ES1#01 : Pkt #6 sent!
|
|||
|
|
+5s ES1:ES1#01 : Pkt #7 sent!
|
|||
|
|
+5s ES1:ES1#01 : Pkt #8 sent!
|
|||
|
|
+5s ES1:ES1#01 : Pkt #9 sent!
|
|||
|
|
+5.00023s ES3:ES3#01 : Pkt #5 received!
|
|||
|
|
+5.57703s ES3:ES3#01 : Pkt #6 received!
|
|||
|
|
+6.15383s ES3:ES3#01 : Pkt #7 received!
|
|||
|
|
+6.73063s ES3:ES3#01 : Pkt #8 received!
|
|||
|
|
+7.30743s ES3:ES3#01 : Pkt #9 received!
|
|||
|
|
End of the simulation
|
|||
|
|
</code></pre>
|
|||
|
|
<h2 id="tas"><a class="header" href="#tas">TAS</a></h2>
|
|||
|
|
<p>To instanciate TAS, we need to add a clock to the TsnNode, add GCL entries to the net device and add 8 FIFOs to the output ports. It can be done as follows:</p>
|
|||
|
|
<pre><code class="language-c++">[...]
|
|||
|
|
//Add a perfect clock to the SW node
|
|||
|
|
n3->AddClock(CreateObject<Clock>());
|
|||
|
|
[...]
|
|||
|
|
//Create 8 output port FIFOs for each netDevice.
|
|||
|
|
Ptr<Cbs> cbs = CreateObject<Cbs>();
|
|||
|
|
cbs->SetTsnNetDevice(net0);
|
|||
|
|
cbs->SetAttribute("IdleSlope", DataRateValue(DataRate("20Kb/s")));
|
|||
|
|
cbs->SetAttribute("portTransmitRate", DataRateValue(DataRate("100Mb/s")));
|
|||
|
|
net0->SetQueue(CreateObject<DropTailQueue<Packet>>()); //FIFO 0
|
|||
|
|
net0->SetQueue(CreateObject<DropTailQueue<Packet>>(), cbs); //FIFO 1
|
|||
|
|
for (int i=0; i<6; i++){
|
|||
|
|
net0->SetQueue(CreateObject<DropTailQueue<Packet>>()); //FIFO 0
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
for (int i=0; i<8; i++){
|
|||
|
|
net1->SetQueue(CreateObject<DropTailQueue<Packet>>());
|
|||
|
|
net2->SetQueue(CreateObject<DropTailQueue<Packet>>());
|
|||
|
|
swnet0->SetQueue(CreateObject<DropTailQueue<Packet>>());
|
|||
|
|
swnet1->SetQueue(CreateObject<DropTailQueue<Packet>>());
|
|||
|
|
swnet2->SetQueue(CreateObject<DropTailQueue<Packet>>());
|
|||
|
|
}
|
|||
|
|
[...]
|
|||
|
|
//Configure TAS schedule
|
|||
|
|
swnet2->AddGclEntry(Time(Seconds(2)), 0); //All gates are close
|
|||
|
|
swnet2->AddGclEntry(Time(Seconds(3)), 2); //Only the gate of the FIFO 1 is open
|
|||
|
|
swnet2->StartTas();
|
|||
|
|
[...]
|
|||
|
|
</code></pre>
|
|||
|
|
<p>In this example, a TAS schedule is added to the switch’s output port, used by the flow. This schedule is designed to delay the frames of the two bursts by approximately two seconds compared to the previous example. The result obtained is as follows.</p>
|
|||
|
|
<pre><code class="language-console">[0/2] Re-checking globbed directories...
|
|||
|
|
[2/2] Linking CXX executable ../build/scratch/ns3.40-book-default
|
|||
|
|
Start of the simulation
|
|||
|
|
+0s ES1:ES1#01 : Pkt #0 sent!
|
|||
|
|
+0s ES1:ES1#01 : Pkt #1 sent!
|
|||
|
|
+0s ES1:ES1#01 : Pkt #2 sent!
|
|||
|
|
+0s ES1:ES1#01 : Pkt #3 sent!
|
|||
|
|
+0s ES1:ES1#01 : Pkt #4 sent!
|
|||
|
|
+2.00011s ES3:ES3#01 : Pkt #0 received!
|
|||
|
|
+2.00023s ES3:ES3#01 : Pkt #1 received!
|
|||
|
|
+2.00035s ES3:ES3#01 : Pkt #2 received!
|
|||
|
|
+2.00046s ES3:ES3#01 : Pkt #3 received!
|
|||
|
|
+2.30743s ES3:ES3#01 : Pkt #4 received!
|
|||
|
|
+5s ES1:ES1#01 : Pkt #5 sent!
|
|||
|
|
+5s ES1:ES1#01 : Pkt #6 sent!
|
|||
|
|
+5s ES1:ES1#01 : Pkt #7 sent!
|
|||
|
|
+5s ES1:ES1#01 : Pkt #8 sent!
|
|||
|
|
+5s ES1:ES1#01 : Pkt #9 sent!
|
|||
|
|
+7.00011s ES3:ES3#01 : Pkt #5 received!
|
|||
|
|
+7.00023s ES3:ES3#01 : Pkt #6 received!
|
|||
|
|
+7.00035s ES3:ES3#01 : Pkt #7 received!
|
|||
|
|
+7.00046s ES3:ES3#01 : Pkt #8 received!
|
|||
|
|
+7.30743s ES3:ES3#01 : Pkt #9 received!
|
|||
|
|
End of the simulation
|
|||
|
|
</code></pre>
|
|||
|
|
<h2 id="gptp"><a class="header" href="#gptp">gPTP</a></h2>
|
|||
|
|
<p>To synchronize the nodes in our network using gPTP, several changes must be made. Let’s start with the includes.</p>
|
|||
|
|
<pre><code class="language-c++">[...]
|
|||
|
|
#include "ns3/clock-constant-drift.h"
|
|||
|
|
#include "ns3/gPTP.h"
|
|||
|
|
#include "ns3/ethernet-header2.h"
|
|||
|
|
[...]
|
|||
|
|
</code></pre>
|
|||
|
|
<p>Next, let’s modify the callbacks that log packet transmission and reception so that events are only logged if the VLAN ID matches the VLAN ID of the flows going from ES1 to ES3. This change prevents the output from being flooded with logs concerning the transmission or reception of synchronization frames. We also add a callback to log the difference between the perfect clock (the simulation time) and the device clock after each correction to verify that gPTP is working properly.</p>
|
|||
|
|
<pre><code class="language-c++">//A callback to log the pkt emission
|
|||
|
|
static void
|
|||
|
|
MacTxCallback(std::string context, Ptr<const Packet> p)
|
|||
|
|
{
|
|||
|
|
Ptr<Packet> pkt = p->Copy();
|
|||
|
|
EthernetHeader2 ethHeader;
|
|||
|
|
pkt->RemoveHeader(ethHeader);
|
|||
|
|
if (ethHeader.GetVid() == 1) {
|
|||
|
|
NS_LOG_INFO((Simulator::Now()).As(Time::S) << " \t" << context << " : Pkt #" << p->GetUid() << " sent!");
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
//A callback to log the pkt reception
|
|||
|
|
static void
|
|||
|
|
MacRxCallback(std::string context, Ptr<const Packet> p)
|
|||
|
|
{
|
|||
|
|
Ptr<Packet> pkt = p->Copy();
|
|||
|
|
EthernetHeader2 ethHeader;
|
|||
|
|
pkt->RemoveHeader(ethHeader);
|
|||
|
|
if (ethHeader.GetVid() == 1) {
|
|||
|
|
NS_LOG_INFO((Simulator::Now()).As(Time::S) << " \t" << context << " : Pkt #" << p->GetUid() << " received!");
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
//A callback to log clock offset after correction
|
|||
|
|
static void
|
|||
|
|
ClockAfterCorrectionCallback(std::string context, Time clockValue)
|
|||
|
|
{
|
|||
|
|
NS_LOG_INFO("[GPTP] At " << Simulator::Now() << " on "<< context << " clock value after correction = " << clockValue.GetNanoSeconds() << "ns (error = "<< (Simulator::Now()-clockValue).GetNanoSeconds() << "ns)");
|
|||
|
|
}
|
|||
|
|
</code></pre>
|
|||
|
|
<p>Next, we replace the perfect clock previously instantiated on n3(SW) in the TAS section with clock instantiation on the various network devices. Note that the clock instantiated on ES1(n0) is a perfect clock (i.e., it corresponds to the simulation time) since it acts as the Grandmaster.</p>
|
|||
|
|
<pre><code class="language-c++">[...]
|
|||
|
|
Ptr<TsnNode> n3 = CreateObject<TsnNode>();
|
|||
|
|
Names::Add("SW", n3);
|
|||
|
|
|
|||
|
|
//Create and add clocks to TsnNodes
|
|||
|
|
Ptr<Clock> c0 = CreateObject<Clock>(); //perfect clock because Grandmaster
|
|||
|
|
n0->SetMainClock(c0);
|
|||
|
|
Ptr<ConstantDriftClock> c1 = CreateObject<ConstantDriftClock>();
|
|||
|
|
c1->SetAttribute("InitialOffset", TimeValue(Seconds(20)));
|
|||
|
|
c1->SetAttribute("DriftRate", DoubleValue(-50));
|
|||
|
|
c1->SetAttribute("Granularity", TimeValue(NanoSeconds(10)));
|
|||
|
|
n1->SetMainClock(c1);
|
|||
|
|
Ptr<ConstantDriftClock> c2 = CreateObject<ConstantDriftClock>();
|
|||
|
|
c2->SetAttribute("InitialOffset", TimeValue(Seconds(3)));
|
|||
|
|
c2->SetAttribute("DriftRate", DoubleValue(2));
|
|||
|
|
c2->SetAttribute("Granularity", TimeValue(NanoSeconds(10)));
|
|||
|
|
n2->SetMainClock(c2);
|
|||
|
|
Ptr<ConstantDriftClock> c3 = CreateObject<ConstantDriftClock>();
|
|||
|
|
c3->SetAttribute("InitialOffset", TimeValue(Seconds(0.5)));
|
|||
|
|
c3->SetAttribute("DriftRate", DoubleValue(-25));
|
|||
|
|
c3->SetAttribute("Granularity", TimeValue(NanoSeconds(10)));
|
|||
|
|
n3->SetMainClock(c3);
|
|||
|
|
|
|||
|
|
[...]
|
|||
|
|
</code></pre>
|
|||
|
|
<p>Then, we add and configure the gPTP instances on the different nodes. Note that the implementation of gPTP in Eden-sim only supports static configuration of gPTP (i.e. no BTCA).</p>
|
|||
|
|
<pre><code class="language-c++"> [...]
|
|||
|
|
swnet2->SetQueue(CreateObject<DropTailQueue<Packet>>());
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
Ptr<GPTP> gPTP0 = CreateObject<GPTP>();
|
|||
|
|
gPTP0->SetNode(n0);
|
|||
|
|
gPTP0->SetMainClock(c0);
|
|||
|
|
gPTP0->AddDomain(0);
|
|||
|
|
gPTP0->AddPort(net0, GPTP::MASTER, 0);
|
|||
|
|
gPTP0->SetAttribute("SyncInterval", TimeValue(Seconds(0.125))); //This line is not mandatory because 0.125s is the default value
|
|||
|
|
gPTP0->SetAttribute("PdelayInterval", TimeValue(Seconds(1))); //This line is not mandatory because 1s is the default value
|
|||
|
|
gPTP0->SetAttribute("Priority", UintegerValue(7));
|
|||
|
|
n0->AddApplication(gPTP0);
|
|||
|
|
gPTP0->SetStartTime(Seconds(0));
|
|||
|
|
Ptr<GPTP> gPTP1 = CreateObject<GPTP>();
|
|||
|
|
gPTP1->SetNode(n1);
|
|||
|
|
gPTP1->SetMainClock(c1);
|
|||
|
|
gPTP1->AddDomain(0);
|
|||
|
|
gPTP1->AddPort(net1, GPTP::SLAVE, 0);
|
|||
|
|
gPTP1->SetAttribute("Priority", UintegerValue(7));
|
|||
|
|
n1->AddApplication(gPTP1);
|
|||
|
|
gPTP1->SetStartTime(Seconds(0));
|
|||
|
|
Ptr<GPTP> gPTP2 = CreateObject<GPTP>();
|
|||
|
|
gPTP2->SetNode(n2);
|
|||
|
|
gPTP2->SetMainClock(c2);
|
|||
|
|
gPTP2->AddDomain(0);
|
|||
|
|
gPTP2->AddPort(net2, GPTP::SLAVE, 0);
|
|||
|
|
gPTP2->SetAttribute("Priority", UintegerValue(7));
|
|||
|
|
n2->AddApplication(gPTP2);
|
|||
|
|
gPTP2->SetStartTime(Seconds(0));
|
|||
|
|
Ptr<GPTP> gPTP3 = CreateObject<GPTP>();
|
|||
|
|
gPTP3->SetNode(n3);
|
|||
|
|
gPTP3->SetMainClock(c3);
|
|||
|
|
gPTP3->AddDomain(0);
|
|||
|
|
gPTP3->AddPort(swnet0, GPTP::SLAVE, 0);
|
|||
|
|
gPTP3->AddPort(swnet1, GPTP::MASTER, 0);
|
|||
|
|
gPTP3->AddPort(swnet2, GPTP::MASTER, 0);
|
|||
|
|
gPTP3->SetAttribute("Priority", UintegerValue(7));
|
|||
|
|
n3->AddApplication(gPTP3);
|
|||
|
|
gPTP3->SetStartTime(Seconds(0));
|
|||
|
|
</code></pre>
|
|||
|
|
<p>And finally, we add the callbacks.</p>
|
|||
|
|
<pre><code class="language-c++">[...]
|
|||
|
|
net2->TraceConnectWithoutContext("MacRx", MakeBoundCallback(&MacRxCallback, context));
|
|||
|
|
//Callback to display clock offset after correction
|
|||
|
|
gPTP1->TraceConnectWithoutContext("ClockAfterCorrection", MakeBoundCallback(&ClockAfterCorrectionCallback, Names::FindName(n1)));
|
|||
|
|
gPTP2->TraceConnectWithoutContext("ClockAfterCorrection", MakeBoundCallback(&ClockAfterCorrectionCallback, Names::FindName(n2)));
|
|||
|
|
gPTP3->TraceConnectWithoutContext("ClockAfterCorrection", MakeBoundCallback(&ClockAfterCorrectionCallback, Names::FindName(n3)));
|
|||
|
|
[...]
|
|||
|
|
</code></pre>
|
|||
|
|
<p>When running the simulation, we can observe that gPTP effectively mitigates clock drift thanks to periodic synchronization on SW and ES2. However, we note that there is no gPTP log for ES3. This is due to the TAS configuration, which never opens the FIFO7 gate used by synchronization messages. Of course, such a configuration has no place in a network that is intended to be functional, but in this example it illustrates the impact of the TAS configuration on gPTP packets.</p>
|
|||
|
|
<h2 id="stream-identification"><a class="header" href="#stream-identification">Stream Identification</a></h2>
|
|||
|
|
<p>Before using PSFP or FRER, it is necessary to implement an identification function. In this section, we will use a null Stream identification function on the switch port connected to ES1. This function will then be used in the following two sections to implement PSFP in order to validate the flow contract and to replicate frames using FRER.</p>
|
|||
|
|
<p>Let’s start by importing this function.</p>
|
|||
|
|
<pre><code class="language-c++">[...]
|
|||
|
|
#include "ns3/stream-identification-function-null.h"
|
|||
|
|
[...]
|
|||
|
|
</code></pre>
|
|||
|
|
<p>Next, let’s create and add the identification function on port swnet0 in input and outfacing mode.</p>
|
|||
|
|
<pre><code class="language-c++">[...]
|
|||
|
|
swnet2->StartTas();
|
|||
|
|
|
|||
|
|
//Add a stream identification function
|
|||
|
|
Ptr<NullStreamIdentificationFunction> sif0 = CreateObject<NullStreamIdentificationFunction>();
|
|||
|
|
uint16_t StreamHandle = 10;
|
|||
|
|
sif0->SetAttribute("VlanID", UintegerValue(1));
|
|||
|
|
sif0->SetAttribute("Address", AddressValue(net2->GetAddress()));
|
|||
|
|
n3->AddStreamIdentificationFunction(StreamHandle, sif0, {swnet0}, {}, {}, {});
|
|||
|
|
[...]
|
|||
|
|
</code></pre>
|
|||
|
|
<h2 id="psfp"><a class="header" href="#psfp">PSFP</a></h2>
|
|||
|
|
<p>Now that we have an identification function capable of identifying frames going from ES1 to ES3 with VLAN ID 1, we can set up a PSFP instance to validate compliance with a network usage contract. Currently, the simulator implements the stream filter and the flow meter. They can be added and configured as follows.</p>
|
|||
|
|
<pre><code class="language-c++">[...]
|
|||
|
|
n3->AddStreamIdentificationFunction(StreamHandle, sif0, {swnet0}, {}, {}, {});
|
|||
|
|
|
|||
|
|
//PSFP configuration
|
|||
|
|
Ptr<StreamFilterInstance> sfi0 = CreateObject<StreamFilterInstance>();
|
|||
|
|
sfi0->SetAttribute("StreamHandle", IntegerValue(StreamHandle));
|
|||
|
|
sfi0->SetAttribute("Priority", IntegerValue(-1)); //-1 = wildcard
|
|||
|
|
sfi0->SetAttribute("MaxSDUSize", UintegerValue(1422));
|
|||
|
|
n3->AddStreamFilter(sfi0);
|
|||
|
|
Ptr<FlowMeterInstance> fm0 = CreateObject<FlowMeterInstance>();
|
|||
|
|
fm0->SetAttribute("CIR", DataRateValue(DataRate("20Kb/s")));
|
|||
|
|
fm0->SetAttribute("CBS", UintegerValue(1400));
|
|||
|
|
fm0->SetAttribute("DropOnYellow", BooleanValue(true));
|
|||
|
|
fm0->SetAttribute("MarkAllFramesRedEnable", BooleanValue(false));
|
|||
|
|
uint16_t fmid = n3->AddFlowMeter(fm0);
|
|||
|
|
sfi0->AddFlowMeterInstanceId(fmid);
|
|||
|
|
[...]
|
|||
|
|
</code></pre>
|
|||
|
|
<p>After these changes, running the simulation does not produce a different output from previous runs. However, by changing the parameters of the emitting application to increase its bandwidth consumption (e.g., increasing the packet size) or by increasing the idle slope of the CBS, it is possible to observe that packets that do not comply with the contract are never received as they are discarded.</p>
|
|||
|
|
<h2 id="frer"><a class="header" href="#frer">FRER</a></h2>
|
|||
|
|
<p>And finally, let’s instantiate FRER. However, the topology we are working with in this chapter does not have multiple paths between ES1 and ES3. So in this section, we will replicate the frames on the output ports of the switch connected to ES2 and ES3 to illustrate the philosophy behind FRER instantiation. We will only detail the replication part. The elimination part is detailed in the example contrib/tsn/examples/tsn-switched-withFRER.cc, which has a topology much more suited to the use of FRER.</p>
|
|||
|
|
<p>Replication with FRER is based on two functions: Sequence Generation Function and Sequence Encode/Decode Function. These two functions are created and configured as follows.</p>
|
|||
|
|
<pre><code class="language-c++">[...]
|
|||
|
|
sfi0->AddFlowMeterInstanceId(fmid);
|
|||
|
|
|
|||
|
|
//Sequencing : Sequence generation
|
|||
|
|
Ptr<SequenceGenerationFunction> seqf0 = CreateObject<SequenceGenerationFunction>();
|
|||
|
|
seqf0->SetAttribute("Direction", BooleanValue(false)); //in-facing
|
|||
|
|
seqf0->SetStreamHandle({StreamHandle});
|
|||
|
|
n3->AddSequenceGenerationFunction(seqf0);
|
|||
|
|
//Sequence encode
|
|||
|
|
Ptr<SequenceEncodeDecodeFunction> seqEnc0 = CreateObject<SequenceEncodeDecodeFunction>();
|
|||
|
|
seqEnc0->SetAttribute("Direction", BooleanValue(false)); //in-facing
|
|||
|
|
seqEnc0->SetAttribute("Active", BooleanValue(true));
|
|||
|
|
seqEnc0->SetStreamHandle({StreamHandle});
|
|||
|
|
seqEnc0->SetPort(swnet0);
|
|||
|
|
n3->AddSequenceEncodeDecodeFunction(seqEnc0);
|
|||
|
|
|
|||
|
|
//Add a forwarding table entry
|
|||
|
|
sw->AddForwardingTableEntry(Mac48Address::ConvertFrom(net2->GetAddress()), 1, {swnet1, swnet2});
|
|||
|
|
[...]
|
|||
|
|
</code></pre>
|
|||
|
|
<p>With this configuration, replication is achieved by forwarding to two different ports. This simplifies configuration by not using the FRER splitting function. However, it is necessary to change the configuration of the forwarding table as shown in the previous listing.</p>
|
|||
|
|
<p>In order to validate the correct operation of the replication (i.e., the addition of the R-TAG), modify the callbacks as follows to display the frame size at transmission and reception.</p>
|
|||
|
|
<pre><code class="language-c++">[...]
|
|||
|
|
//A callback to log the pkt emission
|
|||
|
|
static void
|
|||
|
|
MacTxCallback(std::string context, Ptr<const Packet> p)
|
|||
|
|
{
|
|||
|
|
Ptr<Packet> pkt = p->Copy();
|
|||
|
|
EthernetHeader2 ethHeader;
|
|||
|
|
pkt->RemoveHeader(ethHeader);
|
|||
|
|
if (ethHeader.GetVid() == 1) {
|
|||
|
|
NS_LOG_INFO((Simulator::Now()).As(Time::S) << " \t" << context << " : Pkt #" << p->GetUid() << "(" << p->GetSize() << "bytes) sent!");
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
//A callback to log the pkt reception
|
|||
|
|
static void
|
|||
|
|
MacRxCallback(std::string context, Ptr<const Packet> p)
|
|||
|
|
{
|
|||
|
|
Ptr<Packet> pkt = p->Copy();
|
|||
|
|
EthernetHeader2 ethHeader;
|
|||
|
|
pkt->RemoveHeader(ethHeader);
|
|||
|
|
if (ethHeader.GetVid() == 1) {
|
|||
|
|
NS_LOG_INFO((Simulator::Now()).As(Time::S) << " \t" << context << " : Pkt #" << p->GetUid() << "(" << p->GetSize() << "bytes) received!");
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
[...]
|
|||
|
|
</code></pre>
|
|||
|
|
<p>And now, when running the simulation script, we observe an increase in frame size of 6 bytes (the size of R-TAG) between transmission and reception, as illustrated below.</p>
|
|||
|
|
<pre><code class="language-console">[...]
|
|||
|
|
+5s ES1:ES1#01 : Pkt #215(1422bytes) sent!
|
|||
|
|
[...]
|
|||
|
|
+7.30743s ES3:ES3#01 : Pkt #215(1428bytes) received!
|
|||
|
|
[...]
|
|||
|
|
</code></pre>
|
|||
|
|
<h2 id="conclusion-and-final-simulation-script"><a class="header" href="#conclusion-and-final-simulation-script">Conclusion and final simulation script</a></h2>
|
|||
|
|
<p>In this section, we have implemented the various TSN mechanisms of Eden-sim.</p>
|
|||
|
|
<p>Note that the examples found in contrib/tsn/examples/ illustrate more complicated configurations and implement different traces to log information about the mechanism’s operation. These examples are a good means of further exploring the uses of these TSN mechanisms.</p>
|
|||
|
|
<p>Here is the script at the end of this chapter:</p>
|
|||
|
|
<pre><code class="language-c++">#include "ns3/simulator.h"
|
|||
|
|
#include "ns3/core-module.h"
|
|||
|
|
#include "ns3/node.h"
|
|||
|
|
#include "ns3/drop-tail-queue.h"
|
|||
|
|
|
|||
|
|
#include "ns3/tsn-node.h"
|
|||
|
|
#include "ns3/tsn-net-device.h"
|
|||
|
|
#include "ns3/cbs.h"
|
|||
|
|
#include "ns3/ethernet-channel.h"
|
|||
|
|
#include "ns3/switch-net-device.h"
|
|||
|
|
#include "ns3/ethernet-generator.h"
|
|||
|
|
#include "ns3/clock-constant-drift.h"
|
|||
|
|
#include "ns3/gPTP.h"
|
|||
|
|
#include "ns3/ethernet-header2.h"
|
|||
|
|
#include "ns3/stream-identification-function-null.h"
|
|||
|
|
|
|||
|
|
using namespace ns3;
|
|||
|
|
NS_LOG_COMPONENT_DEFINE("Chapter 3");
|
|||
|
|
|
|||
|
|
//A callback to log the pkt emission
|
|||
|
|
static void
|
|||
|
|
MacTxCallback(std::string context, Ptr<const Packet> p)
|
|||
|
|
{
|
|||
|
|
Ptr<Packet> pkt = p->Copy();
|
|||
|
|
EthernetHeader2 ethHeader;
|
|||
|
|
pkt->RemoveHeader(ethHeader);
|
|||
|
|
if (ethHeader.GetVid() == 1) {
|
|||
|
|
NS_LOG_INFO((Simulator::Now()).As(Time::S) << " \t" << context << " : Pkt #" << p->GetUid() << "(" << p->GetSize() << "bytes) sent!");
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
//A callback to log the pkt reception
|
|||
|
|
static void
|
|||
|
|
MacRxCallback(std::string context, Ptr<const Packet> p)
|
|||
|
|
{
|
|||
|
|
Ptr<Packet> pkt = p->Copy();
|
|||
|
|
EthernetHeader2 ethHeader;
|
|||
|
|
pkt->RemoveHeader(ethHeader);
|
|||
|
|
if (ethHeader.GetVid() == 1) {
|
|||
|
|
NS_LOG_INFO((Simulator::Now()).As(Time::S) << " \t" << context << " : Pkt #" << p->GetUid() << "(" << p->GetSize() << "bytes) received!");
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
//A callback to log clock offset after correction
|
|||
|
|
static void
|
|||
|
|
ClockAfterCorrectionCallback(std::string context, Time clockValue)
|
|||
|
|
{
|
|||
|
|
NS_LOG_INFO("[GPTP] At " << Simulator::Now() << " on "<< context << " clock value after correction = " << clockValue.GetNanoSeconds() << "ns (error = "<< (Simulator::Now()-clockValue).GetNanoSeconds() << "ns)");
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
int
|
|||
|
|
main(int argc, char* argv[])
|
|||
|
|
{
|
|||
|
|
//Enable logging
|
|||
|
|
LogComponentEnable("Chapter 3", LOG_LEVEL_INFO);
|
|||
|
|
|
|||
|
|
//Create four nodes
|
|||
|
|
Ptr<TsnNode> n0 = CreateObject<TsnNode>();
|
|||
|
|
Names::Add("ES1", n0);
|
|||
|
|
Ptr<TsnNode> n1 = CreateObject<TsnNode>();
|
|||
|
|
Names::Add("ES2", n1);
|
|||
|
|
Ptr<TsnNode> n2 = CreateObject<TsnNode>();
|
|||
|
|
Names::Add("ES3", n2);
|
|||
|
|
Ptr<TsnNode> n3 = CreateObject<TsnNode>();
|
|||
|
|
Names::Add("SW", n3);
|
|||
|
|
|
|||
|
|
//Create and add clocks to TsnNodes
|
|||
|
|
Ptr<Clock> c0 = CreateObject<Clock>(); //perfect clock because Grandmaster
|
|||
|
|
n0->SetMainClock(c0);
|
|||
|
|
Ptr<ConstantDriftClock> c1 = CreateObject<ConstantDriftClock>();
|
|||
|
|
c1->SetAttribute("InitialOffset", TimeValue(Seconds(20)));
|
|||
|
|
c1->SetAttribute("DriftRate", DoubleValue(-50));
|
|||
|
|
c1->SetAttribute("Granularity", TimeValue(NanoSeconds(10)));
|
|||
|
|
n1->SetMainClock(c1);
|
|||
|
|
Ptr<ConstantDriftClock> c2 = CreateObject<ConstantDriftClock>();
|
|||
|
|
c2->SetAttribute("InitialOffset", TimeValue(Seconds(3)));
|
|||
|
|
c2->SetAttribute("DriftRate", DoubleValue(2));
|
|||
|
|
c2->SetAttribute("Granularity", TimeValue(NanoSeconds(10)));
|
|||
|
|
n2->SetMainClock(c2);
|
|||
|
|
Ptr<ConstantDriftClock> c3 = CreateObject<ConstantDriftClock>();
|
|||
|
|
c3->SetAttribute("InitialOffset", TimeValue(Seconds(0.5)));
|
|||
|
|
c3->SetAttribute("DriftRate", DoubleValue(-25));
|
|||
|
|
c3->SetAttribute("Granularity", TimeValue(NanoSeconds(10)));
|
|||
|
|
n3->SetMainClock(c3);
|
|||
|
|
|
|||
|
|
|
|||
|
|
//Create and add a netDevice to each end-station node
|
|||
|
|
Ptr<TsnNetDevice> net0 = CreateObject<TsnNetDevice>();
|
|||
|
|
net0->SetAttribute("DataRate", DataRateValue(DataRate("100Mb/s")));
|
|||
|
|
n0->AddDevice(net0);
|
|||
|
|
Names::Add("ES1#01", net0);
|
|||
|
|
Ptr<TsnNetDevice> net1 = CreateObject<TsnNetDevice>();
|
|||
|
|
net1->SetAttribute("DataRate", DataRateValue(DataRate("100Mb/s")));
|
|||
|
|
n1->AddDevice(net1);
|
|||
|
|
Names::Add("ES2#01", net1);
|
|||
|
|
Ptr<TsnNetDevice> net2 = CreateObject<TsnNetDevice>();
|
|||
|
|
net2->SetAttribute("DataRate", DataRateValue(DataRate("100Mb/s")));
|
|||
|
|
n2->AddDevice(net2);
|
|||
|
|
Names::Add("ES3#01", net2);
|
|||
|
|
//Create and add a netDevice to each switch port
|
|||
|
|
Ptr<TsnNetDevice> swnet0 = CreateObject<TsnNetDevice>();
|
|||
|
|
swnet0->SetAttribute("DataRate", DataRateValue(DataRate("100Mb/s")));
|
|||
|
|
n3->AddDevice(swnet0);
|
|||
|
|
Names::Add("SW#01", swnet0);
|
|||
|
|
Ptr<TsnNetDevice> swnet1 = CreateObject<TsnNetDevice>();
|
|||
|
|
swnet1->SetAttribute("DataRate", DataRateValue(DataRate("100Mb/s")));
|
|||
|
|
n3->AddDevice(swnet1);
|
|||
|
|
Names::Add("SW#02", swnet1);
|
|||
|
|
Ptr<TsnNetDevice> swnet2 = CreateObject<TsnNetDevice>();
|
|||
|
|
swnet2->SetAttribute("DataRate", DataRateValue(DataRate("100Mb/s")));
|
|||
|
|
n3->AddDevice(swnet2);
|
|||
|
|
Names::Add("SW#03", swnet2);
|
|||
|
|
|
|||
|
|
//Create Ethernet Channels and connect switch to the end-stations
|
|||
|
|
Ptr<EthernetChannel> channel0 = CreateObject<EthernetChannel>();
|
|||
|
|
channel0->SetAttribute("Delay", TimeValue(NanoSeconds(50)));
|
|||
|
|
net0->Attach(channel0);
|
|||
|
|
swnet0->Attach(channel0);
|
|||
|
|
Ptr<EthernetChannel> channel1 = CreateObject<EthernetChannel>();
|
|||
|
|
channel1->SetAttribute("Delay", TimeValue(NanoSeconds(75)));
|
|||
|
|
net1->Attach(channel1);
|
|||
|
|
swnet1->Attach(channel1);
|
|||
|
|
Ptr<EthernetChannel> channel2 = CreateObject<EthernetChannel>();
|
|||
|
|
channel2->SetAttribute("Delay", TimeValue(NanoSeconds(100)));
|
|||
|
|
net2->Attach(channel2);
|
|||
|
|
swnet2->Attach(channel2);
|
|||
|
|
|
|||
|
|
//Create and add a switch net device to the switch node
|
|||
|
|
Ptr<SwitchNetDevice> sw = CreateObject<SwitchNetDevice>();
|
|||
|
|
sw->SetAttribute("MinForwardingLatency", TimeValue(MicroSeconds(2)));
|
|||
|
|
sw->SetAttribute("MaxForwardingLatency", TimeValue(MicroSeconds(5)));
|
|||
|
|
n3->AddDevice(sw);
|
|||
|
|
sw->AddSwitchPort(swnet0);
|
|||
|
|
sw->AddSwitchPort(swnet1);
|
|||
|
|
sw->AddSwitchPort(swnet2);
|
|||
|
|
|
|||
|
|
//Allocate Mac addresses to the netDevices
|
|||
|
|
net0->SetAddress(Mac48Address::Allocate());
|
|||
|
|
net1->SetAddress(Mac48Address::Allocate());
|
|||
|
|
net2->SetAddress(Mac48Address::Allocate());
|
|||
|
|
sw->SetAddress(Mac48Address::Allocate());
|
|||
|
|
|
|||
|
|
//Create 8 output port FIFOs for each netDevice.
|
|||
|
|
Ptr<Cbs> cbs = CreateObject<Cbs>();
|
|||
|
|
cbs->SetTsnNetDevice(net0);
|
|||
|
|
cbs->SetAttribute("IdleSlope", DataRateValue(DataRate("20Kb/s")));
|
|||
|
|
cbs->SetAttribute("portTransmitRate", DataRateValue(DataRate("100Mb/s")));
|
|||
|
|
net0->SetQueue(CreateObject<DropTailQueue<Packet>>()); //FIFO 0
|
|||
|
|
net0->SetQueue(CreateObject<DropTailQueue<Packet>>(), cbs); //FIFO 1
|
|||
|
|
for (int i=0; i<6; i++){
|
|||
|
|
net0->SetQueue(CreateObject<DropTailQueue<Packet>>()); //FIFO 0
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
for (int i=0; i<8; i++){
|
|||
|
|
net1->SetQueue(CreateObject<DropTailQueue<Packet>>());
|
|||
|
|
net2->SetQueue(CreateObject<DropTailQueue<Packet>>());
|
|||
|
|
swnet0->SetQueue(CreateObject<DropTailQueue<Packet>>());
|
|||
|
|
swnet1->SetQueue(CreateObject<DropTailQueue<Packet>>());
|
|||
|
|
swnet2->SetQueue(CreateObject<DropTailQueue<Packet>>());
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
//Add and configure gPTP
|
|||
|
|
Ptr<GPTP> gPTP0 = CreateObject<GPTP>();
|
|||
|
|
gPTP0->SetNode(n0);
|
|||
|
|
gPTP0->SetMainClock(c0);
|
|||
|
|
gPTP0->AddDomain(0);
|
|||
|
|
gPTP0->AddPort(net0, GPTP::MASTER, 0);
|
|||
|
|
gPTP0->SetAttribute("SyncInterval", TimeValue(Seconds(0.125))); //This line is not mandatory because 0.125s is the default value
|
|||
|
|
gPTP0->SetAttribute("PdelayInterval", TimeValue(Seconds(1))); //This line is not mandatory because 1s is the default value
|
|||
|
|
gPTP0->SetAttribute("Priority", UintegerValue(7));
|
|||
|
|
n0->AddApplication(gPTP0);
|
|||
|
|
gPTP0->SetStartTime(Seconds(0));
|
|||
|
|
Ptr<GPTP> gPTP1 = CreateObject<GPTP>();
|
|||
|
|
gPTP1->SetNode(n1);
|
|||
|
|
gPTP1->SetMainClock(c1);
|
|||
|
|
gPTP1->AddDomain(0);
|
|||
|
|
gPTP1->AddPort(net1, GPTP::SLAVE, 0);
|
|||
|
|
gPTP1->SetAttribute("Priority", UintegerValue(7));
|
|||
|
|
n1->AddApplication(gPTP1);
|
|||
|
|
gPTP1->SetStartTime(Seconds(0));
|
|||
|
|
Ptr<GPTP> gPTP2 = CreateObject<GPTP>();
|
|||
|
|
gPTP2->SetNode(n2);
|
|||
|
|
gPTP2->SetMainClock(c2);
|
|||
|
|
gPTP2->AddDomain(0);
|
|||
|
|
gPTP2->AddPort(net2, GPTP::SLAVE, 0);
|
|||
|
|
gPTP2->SetAttribute("Priority", UintegerValue(7));
|
|||
|
|
n2->AddApplication(gPTP2);
|
|||
|
|
gPTP2->SetStartTime(Seconds(0));
|
|||
|
|
Ptr<GPTP> gPTP3 = CreateObject<GPTP>();
|
|||
|
|
gPTP3->SetNode(n3);
|
|||
|
|
gPTP3->SetMainClock(c3);
|
|||
|
|
gPTP3->AddDomain(0);
|
|||
|
|
gPTP3->AddPort(swnet0, GPTP::SLAVE, 0);
|
|||
|
|
gPTP3->AddPort(swnet1, GPTP::MASTER, 0);
|
|||
|
|
gPTP3->AddPort(swnet2, GPTP::MASTER, 0);
|
|||
|
|
gPTP3->SetAttribute("Priority", UintegerValue(7));
|
|||
|
|
n3->AddApplication(gPTP3);
|
|||
|
|
gPTP3->SetStartTime(Seconds(0));
|
|||
|
|
|
|||
|
|
//Configure TAS schedule
|
|||
|
|
swnet2->AddGclEntry(Time(Seconds(2)), 0); //All gates are close
|
|||
|
|
swnet2->AddGclEntry(Time(Seconds(3)), 2); //Only the gate of the FIFO 1 is open
|
|||
|
|
swnet2->StartTas();
|
|||
|
|
|
|||
|
|
//Add a stream identification function
|
|||
|
|
Ptr<NullStreamIdentificationFunction> sif0 = CreateObject<NullStreamIdentificationFunction>();
|
|||
|
|
uint16_t StreamHandle = 10;
|
|||
|
|
sif0->SetAttribute("VlanID", UintegerValue(1));
|
|||
|
|
sif0->SetAttribute("Address", AddressValue(net2->GetAddress()));
|
|||
|
|
n3->AddStreamIdentificationFunction(StreamHandle, sif0, {swnet0}, {}, {}, {});
|
|||
|
|
|
|||
|
|
//PSFP configuration
|
|||
|
|
Ptr<StreamFilterInstance> sfi0 = CreateObject<StreamFilterInstance>();
|
|||
|
|
sfi0->SetAttribute("StreamHandle", IntegerValue(StreamHandle));
|
|||
|
|
sfi0->SetAttribute("Priority", IntegerValue(-1)); //-1 = wildcard
|
|||
|
|
sfi0->SetAttribute("MaxSDUSize", UintegerValue(1422));
|
|||
|
|
n3->AddStreamFilter(sfi0);
|
|||
|
|
Ptr<FlowMeterInstance> fm0 = CreateObject<FlowMeterInstance>();
|
|||
|
|
fm0->SetAttribute("CIR", DataRateValue(DataRate("20Kb/s")));
|
|||
|
|
fm0->SetAttribute("CBS", UintegerValue(1400));
|
|||
|
|
fm0->SetAttribute("DropOnYellow", BooleanValue(true));
|
|||
|
|
fm0->SetAttribute("MarkAllFramesRedEnable", BooleanValue(false));
|
|||
|
|
uint16_t fmid = n3->AddFlowMeter(fm0);
|
|||
|
|
sfi0->AddFlowMeterInstanceId(fmid);
|
|||
|
|
|
|||
|
|
//Sequencing : Sequence generation
|
|||
|
|
Ptr<SequenceGenerationFunction> seqf0 = CreateObject<SequenceGenerationFunction>();
|
|||
|
|
seqf0->SetAttribute("Direction", BooleanValue(false)); //in-facing
|
|||
|
|
seqf0->SetStreamHandle({StreamHandle});
|
|||
|
|
n3->AddSequenceGenerationFunction(seqf0);
|
|||
|
|
//Sequence encode
|
|||
|
|
Ptr<SequenceEncodeDecodeFunction> seqEnc0 = CreateObject<SequenceEncodeDecodeFunction>();
|
|||
|
|
seqEnc0->SetAttribute("Direction", BooleanValue(false)); //in-facing
|
|||
|
|
seqEnc0->SetAttribute("Active", BooleanValue(true));
|
|||
|
|
seqEnc0->SetStreamHandle({StreamHandle});
|
|||
|
|
seqEnc0->SetPort(swnet0);
|
|||
|
|
n3->AddSequenceEncodeDecodeFunction(seqEnc0);
|
|||
|
|
|
|||
|
|
//Add a forwarding table entry
|
|||
|
|
sw->AddForwardingTableEntry(Mac48Address::ConvertFrom(net2->GetAddress()), 1, {swnet1, swnet2});
|
|||
|
|
|
|||
|
|
//Application description
|
|||
|
|
//ES1 -> ES3 with priority 1
|
|||
|
|
Ptr<EthernetGenerator> app0 = CreateObject<EthernetGenerator>();
|
|||
|
|
app0->Setup(net0);
|
|||
|
|
app0->SetAttribute("Address", AddressValue(net2->GetAddress()));
|
|||
|
|
app0->SetAttribute("BurstSize", UintegerValue(5));
|
|||
|
|
app0->SetAttribute("PayloadSize", UintegerValue(1400));
|
|||
|
|
app0->SetAttribute("Period", TimeValue(Seconds(5)));
|
|||
|
|
app0->SetAttribute("VlanID", UintegerValue(1));
|
|||
|
|
app0->SetAttribute("PCP", UintegerValue(1));
|
|||
|
|
n0->AddApplication(app0);
|
|||
|
|
app0->SetStartTime(Seconds(0));
|
|||
|
|
app0->SetStopTime(Seconds(10));
|
|||
|
|
|
|||
|
|
//Callback declarations
|
|||
|
|
//Callback to display the packet sent log
|
|||
|
|
std::string context = Names::FindName(n0) + ":" + Names::FindName(net0);
|
|||
|
|
net0->TraceConnectWithoutContext("MacTx", MakeBoundCallback(&MacTxCallback, context));
|
|||
|
|
//Callback to display the packet received log
|
|||
|
|
context = Names::FindName(n2) + ":" + Names::FindName(net2);
|
|||
|
|
net2->TraceConnectWithoutContext("MacRx", MakeBoundCallback(&MacRxCallback, context));
|
|||
|
|
//Callback to display clock offset after correction
|
|||
|
|
gPTP1->TraceConnectWithoutContext("ClockAfterCorrection", MakeBoundCallback(&ClockAfterCorrectionCallback, Names::FindName(n1)));
|
|||
|
|
gPTP2->TraceConnectWithoutContext("ClockAfterCorrection", MakeBoundCallback(&ClockAfterCorrectionCallback, Names::FindName(n2)));
|
|||
|
|
gPTP3->TraceConnectWithoutContext("ClockAfterCorrection", MakeBoundCallback(&ClockAfterCorrectionCallback, Names::FindName(n3)));
|
|||
|
|
|
|||
|
|
|
|||
|
|
//Execute the simulation
|
|||
|
|
NS_LOG_INFO("Start of the simulation");
|
|||
|
|
Simulator::Stop(Seconds(10));
|
|||
|
|
Simulator::Run();
|
|||
|
|
Simulator::Destroy();
|
|||
|
|
NS_LOG_INFO("End of the simulation");
|
|||
|
|
return 0;
|
|||
|
|
}
|
|||
|
|
</code></pre>
|
|||
|
|
|
|||
|
|
</main>
|
|||
|
|
|
|||
|
|
<nav class="nav-wrapper" aria-label="Page navigation">
|
|||
|
|
<!-- Mobile navigation buttons -->
|
|||
|
|
<a rel="prev" href="../getting_stated/network_customization.html" class="mobile-nav-chapters previous" title="Previous chapter" aria-label="Previous chapter" aria-keyshortcuts="Left">
|
|||
|
|
<span class=fa-svg><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 320 512"><!--! Font Awesome Free 6.2.0 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License) Copyright 2022 Fonticons, Inc. --><path d="M41.4 233.4c-12.5 12.5-12.5 32.8 0 45.3l160 160c12.5 12.5 32.8 12.5 45.3 0s12.5-32.8 0-45.3L109.3 256 246.6 118.6c12.5-12.5 12.5-32.8 0-45.3s-32.8-12.5-45.3 0l-160 160z"/></svg></span>
|
|||
|
|
</a>
|
|||
|
|
|
|||
|
|
|
|||
|
|
<div style="clear: both"></div>
|
|||
|
|
</nav>
|
|||
|
|
</div>
|
|||
|
|
</div>
|
|||
|
|
|
|||
|
|
<nav class="nav-wide-wrapper" aria-label="Page navigation">
|
|||
|
|
<a rel="prev" href="../getting_stated/network_customization.html" class="nav-chapters previous" title="Previous chapter" aria-label="Previous chapter" aria-keyshortcuts="Left">
|
|||
|
|
<span class=fa-svg><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 320 512"><!--! Font Awesome Free 6.2.0 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License) Copyright 2022 Fonticons, Inc. --><path d="M41.4 233.4c-12.5 12.5-12.5 32.8 0 45.3l160 160c12.5 12.5 32.8 12.5 45.3 0s12.5-32.8 0-45.3L109.3 256 246.6 118.6c12.5-12.5 12.5-32.8 0-45.3s-32.8-12.5-45.3 0l-160 160z"/></svg></span>
|
|||
|
|
</a>
|
|||
|
|
|
|||
|
|
</nav>
|
|||
|
|
|
|||
|
|
</div>
|
|||
|
|
|
|||
|
|
<template id=fa-eye><span class=fa-svg><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 576 512"><!--! Font Awesome Free 6.2.0 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License) Copyright 2022 Fonticons, Inc. --><path d="M288 32c-80.8 0-145.5 36.8-192.6 80.6C48.6 156 17.3 208 2.5 243.7c-3.3 7.9-3.3 16.7 0 24.6C17.3 304 48.6 356 95.4 399.4C142.5 443.2 207.2 480 288 480s145.5-36.8 192.6-80.6c46.8-43.5 78.1-95.4 93-131.1c3.3-7.9 3.3-16.7 0-24.6c-14.9-35.7-46.2-87.7-93-131.1C433.5 68.8 368.8 32 288 32zM432 256c0 79.5-64.5 144-144 144s-144-64.5-144-144s64.5-144 144-144s144 64.5 144 144zM288 192c0 35.3-28.7 64-64 64c-11.5 0-22.3-3-31.6-8.4c-.2 2.8-.4 5.5-.4 8.4c0 53 43 96 96 96s96-43 96-96s-43-96-96-96c-2.8 0-5.6 .1-8.4 .4c5.3 9.3 8.4 20.1 8.4 31.6z"/></svg></span></template>
|
|||
|
|
<template id=fa-eye-slash><span class=fa-svg><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 640 512"><!--! Font Awesome Free 6.2.0 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License) Copyright 2022 Fonticons, Inc. --><path d="M38.8 5.1C28.4-3.1 13.3-1.2 5.1 9.2S-1.2 34.7 9.2 42.9l592 464c10.4 8.2 25.5 6.3 33.7-4.1s6.3-25.5-4.1-33.7L525.6 386.7c39.6-40.6 66.4-86.1 79.9-118.4c3.3-7.9 3.3-16.7 0-24.6c-14.9-35.7-46.2-87.7-93-131.1C465.5 68.8 400.8 32 320 32c-68.2 0-125 26.3-169.3 60.8L38.8 5.1zM223.1 149.5C248.6 126.2 282.7 112 320 112c79.5 0 144 64.5 144 144c0 24.9-6.3 48.3-17.4 68.7L408 294.5c5.2-11.8 8-24.8 8-38.5c0-53-43-96-96-96c-2.8 0-5.6 .1-8.4 .4c5.3 9.3 8.4 20.1 8.4 31.6c0 10.2-2.4 19.8-6.6 28.3l-90.3-70.8zm223.1 298L373 389.9c-16.4 6.5-34.3 10.1-53 10.1c-79.5 0-144-64.5-144-144c0-6.9 .5-13.6 1.4-20.2L83.1 161.5C60.3 191.2 44 220.8 34.5 243.7c-3.3 7.9-3.3 16.7 0 24.6c14.9 35.7 46.2 87.7 93 131.1C174.5 443.2 239.2 480 320 480c47.8 0 89.9-12.9 126.2-32.5z"/></svg></span></template>
|
|||
|
|
<template id=fa-copy><span class=fa-svg><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><!--! Font Awesome Free 6.2.0 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License) Copyright 2022 Fonticons, Inc. --><path d="M502.6 70.63l-61.25-61.25C435.4 3.371 427.2 0 418.7 0H255.1c-35.35 0-64 28.66-64 64l.0195 256C192 355.4 220.7 384 256 384h192c35.2 0 64-28.8 64-64V93.25C512 84.77 508.6 76.63 502.6 70.63zM464 320c0 8.836-7.164 16-16 16H255.1c-8.838 0-16-7.164-16-16L239.1 64.13c0-8.836 7.164-16 16-16h128L384 96c0 17.67 14.33 32 32 32h47.1V320zM272 448c0 8.836-7.164 16-16 16H63.1c-8.838 0-16-7.164-16-16L47.98 192.1c0-8.836 7.164-16 16-16H160V128H63.99c-35.35 0-64 28.65-64 64l.0098 256C.002 483.3 28.66 512 64 512h192c35.2 0 64-28.8 64-64v-32h-47.1L272 448z"/></svg></span></template>
|
|||
|
|
<template id=fa-play><span class=fa-svg><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 384 512"><!--! Font Awesome Free 6.2.0 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License) Copyright 2022 Fonticons, Inc. --><path d="M73 39c-14.8-9.1-33.4-9.4-48.5-.9S0 62.6 0 80V432c0 17.4 9.4 33.4 24.5 41.9s33.7 8.1 48.5-.9L361 297c14.3-8.7 23-24.2 23-41s-8.7-32.2-23-41L73 39z"/></svg></span></template>
|
|||
|
|
<template id=fa-clock-rotate-left><span class=fa-svg><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><!--! Font Awesome Free 6.2.0 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License) Copyright 2022 Fonticons, Inc. --><path d="M75 75L41 41C25.9 25.9 0 36.6 0 57.9V168c0 13.3 10.7 24 24 24H134.1c21.4 0 32.1-25.9 17-41l-30.8-30.8C155 85.5 203 64 256 64c106 0 192 86 192 192s-86 192-192 192c-40.8 0-78.6-12.7-109.7-34.4c-14.5-10.1-34.4-6.6-44.6 7.9s-6.6 34.4 7.9 44.6C151.2 495 201.7 512 256 512c141.4 0 256-114.6 256-256S397.4 0 256 0C185.3 0 121.3 28.7 75 75zm181 53c-13.3 0-24 10.7-24 24V256c0 6.4 2.5 12.5 7 17l72 72c9.4 9.4 24.6 9.4 33.9 0s9.4-24.6 0-33.9l-65-65V152c0-13.3-10.7-24-24-24z"/></svg></span></template>
|
|||
|
|
|
|||
|
|
<!-- Livereload script (if served using the cli tool) -->
|
|||
|
|
<script>
|
|||
|
|
const wsProtocol = location.protocol === 'https:' ? 'wss:' : 'ws:';
|
|||
|
|
const wsAddress = wsProtocol + "//" + location.host + "/" + "__livereload";
|
|||
|
|
const socket = new WebSocket(wsAddress);
|
|||
|
|
socket.onmessage = function (event) {
|
|||
|
|
if (event.data === "reload") {
|
|||
|
|
socket.close();
|
|||
|
|
location.reload();
|
|||
|
|
}
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
window.onbeforeunload = function() {
|
|||
|
|
socket.close();
|
|||
|
|
}
|
|||
|
|
</script>
|
|||
|
|
|
|||
|
|
|
|||
|
|
<script>
|
|||
|
|
window.playground_copyable = true;
|
|||
|
|
</script>
|
|||
|
|
|
|||
|
|
|
|||
|
|
<script src="../elasticlunr-ef4e11c1.min.js"></script>
|
|||
|
|
<script src="../mark-09e88c2c.min.js"></script>
|
|||
|
|
<script src="../searcher-c2a407aa.js"></script>
|
|||
|
|
|
|||
|
|
<script src="../clipboard-1626706a.min.js"></script>
|
|||
|
|
<script src="../highlight-abc7f01d.js"></script>
|
|||
|
|
<script src="../book-a0b12cfe.js"></script>
|
|||
|
|
|
|||
|
|
<!-- Custom JS scripts -->
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
</div>
|
|||
|
|
</body>
|
|||
|
|
</html>
|