.. タイトル: QoS DSCP 計算および構成ジェネレーター
.. スラグ: qos-dscp-calculator
.. 日付: 2026-02-02 16:00:00 UTC
.. タグ: ネットワーキング、QOS、dscp、電卓、ツール
.. カテゴリ: ツール
..リンク:
.. 説明: DSCP 計算機、帯域幅割り当てプランナー、およびマルチベンダー構成ジェネレーターを備えた対話型 QoS 設計ツール
.. タイプ: テキスト
<link href="/assets/css/tools-common.css" rel="stylesheet"/>
<style>
        * {
            box-sizing: border-box;
        }

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            margin: 0;
            padding: 0;
        }

        .calc-container {
            max-width: 1000px;
            margin: 20px auto;
            padding: 20px;
        }

        .calc-header {
            margin-bottom: 30px;
            padding: 25px;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            border-radius: 12px;
            box-shadow: 0 4px 6px rgba(0,0,0,0.1);
            color: white;
        }

        .calc-header h2 {
            margin-top: 0;
            color: white;
            font-size: 28px;
            margin-bottom: 10px;
        }

        .calc-header p {
            margin: 10px 0 20px 0;
            opacity: 0.95;
            font-size: 15px;
        }

        /* DSCP Converter in Header */
        .dscp-converter-compact {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 15px;
            margin-top: 20px;
        }

        .input-group {
            display: flex;
            flex-direction: column;
        }

        .input-group label {
            margin-bottom: 8px;
            font-weight: 600;
            font-size: 14px;
            color: rgba(255,255,255,0.95);
        }

        .input-group input,
        .input-group select {
            padding: 14px;
            font-size: 16px;
            border: 2px solid rgba(255,255,255,0.3);
            border-radius: 6px;
            font-family: 'Courier New', monospace;
            background: rgba(255,255,255,0.95);
            transition: all 0.3s ease;
        }

        .input-group input:focus,
        .input-group select:focus {
            outline: none;
            border-color: #4CAF50;
            background: white;
            box-shadow: 0 0 0 3px rgba(76, 175, 80, 0.1);
        }

        .dscp-info {
            margin-top: 15px;
            padding: 12px;
            background: rgba(255,255,255,0.15);
            border-radius: 6px;
            font-size: 14px;
        }

        .dscp-info strong {
            color: white;
        }

        /* Quick Reference Table */
        .quick-reference {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
            gap: 8px;
            margin-top: 15px;
        }

        .dscp-chip {
            background: rgba(255,255,255,0.15);
            padding: 8px 12px;
            border-radius: 6px;
            cursor: pointer;
            transition: all 0.2s ease;
            text-align: center;
            border: 2px solid transparent;
            color: inherit;
            font-family: inherit;
            width: 100%;
        }

        .dscp-chip:hover {
            background: rgba(255,255,255,0.25);
            border-color: rgba(255,255,255,0.4);
        }

        .dscp-chip:focus {
            outline: none;
            background: rgba(255,255,255,0.3);
            border-color: #4CAF50;
            box-shadow: 0 0 0 3px rgba(76, 175, 80, 0.3);
        }

        .dscp-chip:active {
            transform: scale(0.98);
        }

        .dscp-chip .name {
            font-weight: bold;
            font-size: 13px;
        }

        .dscp-chip .value {
            font-size: 11px;
            opacity: 0.9;
            margin-top: 2px;
        }

        /* Section Tabs */
        .tabs {
            display: none; /* Hidden by default, shown after pathway selection */
            background: rgba(255,255,255,0.1);
            border-radius: 8px;
            margin-top: 20px;
            overflow: hidden;
        }

        .tabs.show {
            display: flex;
        }

        .tab {
            flex: 1;
            padding: 12px 20px;
            text-align: center;
            cursor: pointer;
            font-weight: 600;
            transition: all 0.3s;
            color: rgba(255,255,255,0.8);
            border: none;
            background: transparent;
        }

        .tab:hover {
            background: rgba(255,255,255,0.15);
            color: white;
        }

        .tab.active {
            background: white;
            color: #667eea;
        }

        .tab-content {
            display: none;
        }

        .tab-content.active {
            display: block;
        }

        /* Sections */
        .section {
            margin-bottom: 30px;
            background: white;
            border: 1px solid #e0e0e0;
            border-radius: 8px;
            padding: 20px;
            box-shadow: 0 2px 4px rgba(0,0,0,0.05);
        }

        .section h3 {
            margin-top: 0;
            margin-bottom: 20px;
            color: #333;
            border-left: 5px solid #667eea;
            padding-left: 15px;
            font-size: 20px;
        }

        .section-header {
            background: linear-gradient(135deg, #4CAF50 0%, #45a049 100%);
            color: white;
            padding: 15px 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-radius: 8px 8px 0 0;
            margin: -20px -20px 20px -20px;
        }

        .section-header h3 {
            margin: 0;
            font-size: 18px;
            border: none;
            padding: 0;
            color: white;
        }

        /* Policy Designer */
        .traffic-class {
            background: #f8f9fa;
            padding: 15px;
            margin-bottom: 15px;
            border-radius: 8px;
            border-left: 4px solid #667eea;
        }

        .traffic-class-header {
            display: flex;
            gap: 15px;
            margin-bottom: 10px;
            flex-wrap: wrap;
        }

        .traffic-class-header input,
        .traffic-class-header select {
            flex: 1;
            min-width: 150px;
            padding: 10px;
            border: 2px solid #ced4da;
            border-radius: 6px;
            font-size: 14px;
        }

        .traffic-class-header input:focus,
        .traffic-class-header select:focus {
            outline: none;
            border-color: #667eea;
        }

        .remove-class-btn {
            background: #dc3545;
            color: white;
            border: none;
            padding: 8px 16px;
            border-radius: 4px;
            cursor: pointer;
            font-size: 14px;
        }

        .remove-class-btn:hover {
            background: #c82333;
        }

        .btn {
            padding: 12px 24px;
            border: none;
            border-radius: 6px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 2px 4px rgba(0,0,0,0.2);
        }

        .btn-primary {
            background: #4CAF50;
            color: white;
        }

        .btn-primary:hover {
            background: #45a049;
            transform: translateY(-1px);
            box-shadow: 0 4px 8px rgba(0,0,0,0.3);
        }

        .btn-secondary {
            background: #6c757d;
            color: white;
        }

        .btn-secondary:hover {
            background: #5a6268;
        }

        .alert {
            padding: 15px 20px;
            border-radius: 8px;
            margin-bottom: 20px;
            border-left: 4px solid;
        }

        .alert-info {
            background: #d1ecf1;
            border-color: #17a2b8;
            color: #0c5460;
        }

        .alert-warning {
            background: #fff3cd;
            border-color: #ffc107;
            color: #856404;
        }

        .alert-success {
            background: #d4edda;
            border-color: #28a745;
            color: #155724;
        }

        .bandwidth-summary {
            background: white;
            padding: 20px;
            border-radius: 8px;
            margin-top: 20px;
            border: 2px solid #667eea;
        }

        .bandwidth-bar-container {
            margin: 20px 0;
        }

        .bandwidth-bar {
            height: 40px;
            display: flex;
            border-radius: 6px;
            overflow: hidden;
            border: 2px solid #dee2e6;
        }

        .bandwidth-segment {
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-weight: bold;
            font-size: 12px;
            transition: all 0.3s ease;
        }

        /* Latency Calculator */
        .latency-calculator {
            background: white;
            padding: 20px;
            border-radius: 8px;
            margin-top: 20px;
            border: 2px solid #17a2b8;
        }

        .latency-class {
            background: #f8f9fa;
            padding: 20px;
            margin-bottom: 15px;
            border-radius: 8px;
            border-left: 4px solid #17a2b8;
        }

        .latency-class-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 15px;
            flex-wrap: wrap;
            gap: 10px;
        }

        .latency-class-name {
            font-weight: 600;
            font-size: 16px;
            color: #333;
        }

        .latency-result {
            font-size: 24px;
            font-weight: bold;
            font-family: 'Courier New', monospace;
        }

        .latency-result.good {
            color: #28a745;
        }

        .latency-result.warning {
            color: #ffc107;
        }

        .latency-result.critical {
            color: #dc3545;
        }

        .slider-container {
            margin-top: 15px;
        }

        .slider-label {
            display: flex;
            justify-content: space-between;
            margin-bottom: 8px;
            font-size: 14px;
            color: #666;
        }

        .slider-input {
            width: 100%;
            height: 8px;
            border-radius: 4px;
            background: #dee2e6;
            outline: none;
            -webkit-appearance: none;
        }

        .slider-input::-webkit-slider-thumb {
            -webkit-appearance: none;
            appearance: none;
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background: #17a2b8;
            cursor: pointer;
            box-shadow: 0 2px 4px rgba(0,0,0,0.2);
        }

        .slider-input::-moz-range-thumb {
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background: #17a2b8;
            cursor: pointer;
            box-shadow: 0 2px 4px rgba(0,0,0,0.2);
            border: none;
        }

        .slider-input:hover::-webkit-slider-thumb {
            background: #138496;
        }

        .slider-input:hover::-moz-range-thumb {
            background: #138496;
        }

        .latency-details {
            margin-top: 10px;
            padding-top: 10px;
            border-top: 1px solid #dee2e6;
            font-size: 13px;
            color: #666;
        }

        .config-output {
            background: #2d2d2d;
            color: #f8f8f2;
            padding: 20px;
            border-radius: 6px;
            font-family: 'Courier New', monospace;
            font-size: 13px;
            line-height: 1.6;
            overflow-x: auto;
            margin-top: 15px;
        }

        .copy-btn {
            background: #4CAF50;
            color: white;
            border: none;
            padding: 8px 16px;
            border-radius: 4px;
            cursor: pointer;
            font-size: 14px;
            margin-top: 10px;
        }

        .copy-btn:hover {
            background: #45a049;
        }

        .vendor-selector {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            margin-bottom: 20px;
        }

        .vendor-btn {
            padding: 10px 20px;
            background: white;
            border: 2px solid #667eea;
            color: #667eea;
            border-radius: 6px;
            cursor: pointer;
            font-weight: 600;
            transition: all 0.2s ease;
        }

        .vendor-btn:hover {
            background: #f0f0ff;
        }

        .vendor-btn.active {
            background: #667eea;
            color: white;
        }

        .hidden {
            display: none;
        }

        /* Getting Started Section */
        .getting-started {
            background: rgba(255,255,255,0.95);
            padding: 25px;
            border-radius: 8px;
            margin-top: 20px;
            border: 2px solid rgba(255,255,255,0.3);
        }

        .getting-started h3 {
            margin-top: 0;
            color: white;
            font-size: 20px;
        }

        .pathway-cards {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 15px;
            margin-top: 15px;
        }

        .pathway-card {
            background: white;
            padding: 20px;
            border-radius: 8px;
            cursor: pointer;
            transition: all 0.3s ease;
            border: 2px solid #dee2e6;
            text-align: center;
        }

        .pathway-card:hover {
            border-color: #667eea;
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(102, 126, 234, 0.2);
        }

        .pathway-card:focus {
            outline: none;
            border-color: #667eea;
            box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.3);
        }

        .pathway-icon {
            font-size: 36px;
            margin-bottom: 10px;
        }

        .pathway-title {
            font-weight: bold;
            color: #333;
            margin-bottom: 8px;
            font-size: 16px;
        }

        .pathway-desc {
            color: #666;
            font-size: 13px;
        }

        /* Collapsible DSCP Converter */
        .dscp-converter-toggle {
            background: rgba(255,255,255,0.2);
            border: 2px solid rgba(255,255,255,0.3);
            padding: 12px 20px;
            border-radius: 8px;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-top: 20px;
            transition: all 0.2s ease;
            color: white;
            font-weight: 600;
        }

        .dscp-converter-toggle:hover {
            background: rgba(255,255,255,0.3);
        }

        .dscp-converter-toggle:focus {
            outline: none;
            box-shadow: 0 0 0 3px rgba(76, 175, 80, 0.3);
        }

        .toggle-icon {
            transition: transform 0.3s ease;
        }

        .toggle-icon.open {
            transform: rotate(180deg);
        }

        .dscp-converter-content {
            margin-top: 15px;
            display: none;
        }

        .dscp-converter-content.show {
            display: block;
            animation: slideDown 0.3s ease;
        }

        @keyframes slideDown {
            from {
                opacity: 0;
                transform: translateY(-10px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* Responsive Design */
        @media (max-width: 768px) {
            .calc-container {
                padding: 12px;
                margin: 10px auto;
            }

            .dscp-converter-compact {
                grid-template-columns: 1fr;
                gap: 12px;
            }

            .quick-reference {
                grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
                gap: 6px;
            }

            .dscp-chip {
                padding: 6px 10px;
                font-size: 12px;
            }

            .dscp-chip .name {
                font-size: 12px;
            }

            .dscp-chip .value {
                font-size: 10px;
            }

            .tabs {
                flex-direction: column;
            }

            .tab {
                padding: 10px 15px;
                border-right: none;
                border-bottom: 2px solid transparent;
            }

            .tab.active {
                border-right: none;
                border-bottom: 2px solid white;
            }

            .traffic-class-header {
                flex-direction: column;
            }

            .traffic-class-header input,
            .traffic-class-header select {
                width: 100%;
            }

            .section {
                padding: 15px;
            }

            .section h3 {
                font-size: 18px;
            }

            /* Minimum touch target size for mobile accessibility */
            .btn, button, .tab, .dscp-chip {
                min-height: 44px;
                min-width: 44px;
            }
        }

        @media (max-width: 480px) {
            .calc-container {
                padding: 8px;
            }

            .calc-header h2 {
                font-size: 22px;
            }

            .calc-header p {
                font-size: 14px;
            }

            .input-group label {
                font-size: 13px;
            }

            .input-group input,
            .input-group select {
                font-size: 14px;
                padding: 10px;
            }

            .btn {
                width: 100%;
                padding: 10px 16px;
                font-size: 14px;
            }
        }
    </style>

<body>
<div class="calc-container">
<div class="calc-header">
<h2>🎯 QoS DSCP 計算機および構成ジェネレーター</h2>
<p>DSCP 値の変換、QoS ポリシーの設計、統合ネットワーク用のマルチベンダー構成の生成</p>
「はじめに」セクション
<div class="getting-started" id="gettingStarted">
<h3 style="color: #333;">👋 何がしたいですか？</h3>
<div class="pathway-cards">
<button aria-label="Start with a pre-built QoS template" class="pathway-card" onclick="selectPathway('template')">
<div class="pathway-icon">📋</div>
<div class="pathway-title">テンプレートを使用する</div>
<div class="pathway-desc">ヘルスケア、教育、またはエンタープライズ テンプレートから始める</div>
</button>
<button aria-label="Convert DSCP values between formats" class="pathway-card" onclick="selectPathway('converter')">
<div class="pathway-icon">🔄</div>
<div class="pathway-title">DSCP 値の変換</div>
<div class="pathway-desc">10進数、16進数、2進数間の素早い変換</div>
</button>
<button aria-label="Design a custom QoS policy" class="pathway-card" onclick="selectPathway('design')">
<div class="pathway-icon">🎨</div>
<div class="pathway-title">カスタムポリシーの設計</div>
<div class="pathway-desc">独自の QoS 構成を最初から構築する</div>
</button>
</div>
</div>
折りたたみ可能な DSCP コンバータ
<button aria-controls="converterContent" aria-expanded="false" class="dscp-converter-toggle" id="converterToggle" onclick="toggleConverter()" style="display: none;">
<span>🔄 クイック DSCP コンバーター</span>
<span class="toggle-icon" id="toggleIcon">▼</span>
</button>
<div class="dscp-converter-content" id="converterContent">
<div class="dscp-converter-compact">
<div class="input-group">
<label for="dscpDecimal">10 進数 (0 ～ 63):</label>
<input id="dscpDecimal" max="63" min="0" type="number" value="46"/>
</div>
<div class="input-group">
<label for="dscpHex">16 進数:</label>
<input id="dscpHex" maxlength="4" type="text" value="0x2E"/>
</div>
<div class="input-group">
<label for="dscpBinary">バイナリ (6 ビット):</label>
<input id="dscpBinary" maxlength="6" type="text" value="101110"/>
</div>
<div class="input-group">
<label for="dscpName">規格名:</label>
<select id="dscpName">
<option value="">選択してください...</option>
</select>
</div>
</div>
<div class="dscp-info">
<strong>現在の値:</strong> <span id="currentValue">DSCP 46 (EF - 優先転送)</span><br/>
<strong>使用事例：</strong> <span id="useCase">音声トラフィック (VoIP)</span>
</div>
<div id="tosDisplay" style="margin-top: 15px; padding: 12px; background: #f0f0f0; border-radius: 6px; font-family: monospace;">
<strong>IP ToS バイトの内訳:</strong><br/>
<div style="display: grid; grid-template-columns: repeat(8, 1fr); gap: 2px; margin-top: 8px;">
<div style="border: 1px solid #999; padding: 4px; text-align: center; background: #e3f2fd; font-weight: bold;">D</div>
<div style="border: 1px solid #999; padding: 4px; text-align: center; background: #e3f2fd; font-weight: bold;">D</div>
<div style="border: 1px solid #999; padding: 4px; text-align: center; background: #e3f2fd; font-weight: bold;">D</div>
<div style="border: 1px solid #999; padding: 4px; text-align: center; background: #e3f2fd; font-weight: bold;">D</div>
<div style="border: 1px solid #999; padding: 4px; text-align: center; background: #e3f2fd; font-weight: bold;">D</div>
<div style="border: 1px solid #999; padding: 4px; text-align: center; background: #e3f2fd; font-weight: bold;">D</div>
<div style="border: 1px solid #999; padding: 4px; text-align: center; background: #fff9c4; font-weight: bold;">E</div>
<div style="border: 1px solid #999; padding: 4px; text-align: center; background: #fff9c4; font-weight: bold;">E</div>
</div>
<div style="font-size: 12px; margin-top: 8px; color: #666;">DSCP (ビット 7 ～ 2):<strong id="tosDisplayDscp"></strong> = <strong id="tosDisplayDscpDec"></strong>|
                    ECN (ビット 1 ～ 0):<strong id="tosDisplayEcn"></strong>|
                    IP 優先順位:<strong id="tosDisplayIpp"></strong>
</div>
</div>
簡単な共通値
<div style="margin-top: 15px;">
<label style="display: block; margin-bottom: 8px; font-weight: 600; font-size: 14px;">共通値のクイック選択:</label>
<div aria-label="Quick DSCP value selection" class="quick-reference" role="group">
<button aria-label="Select EF - Expedited Forwarding, DSCP 46, for Voice traffic" class="dscp-chip" onclick="setDSCP(46)">
<div class="name">EF</div>
<div class="value">46 / ボイス</div>
</button>
<button aria-label="Select AF41 - Assured Forwarding 41, DSCP 34, for Video traffic" class="dscp-chip" onclick="setDSCP(34)">
<div class="name">AF41</div>
<div class="value">34 / ビデオ</div>
</button>
<button aria-label="Select AF31 - Assured Forwarding 31, DSCP 26, for Streaming traffic" class="dscp-chip" onclick="setDSCP(26)">
<div class="name">AF31</div>
<div class="value">26 / ストリーミング</div>
</button>
<button aria-label="Select CS3 - Class Selector 3, DSCP 24, for Signaling traffic" class="dscp-chip" onclick="setDSCP(24)">
<div class="name">CS3</div>
<div class="value">24 / 信号伝達</div>
</button>
<button aria-label="Select AF21 - Assured Forwarding 21, DSCP 18, for High Data traffic" class="dscp-chip" onclick="setDSCP(18)">
<div class="name">AF21</div>
<div class="value">18 / ハイデータ</div>
</button>
<button aria-label="Select BE - Best Effort, DSCP 0, for Best Effort traffic" class="dscp-chip" onclick="setDSCP(0)">
<div class="name">なれ</div>
<div class="value">0 / ベストエフォート</div>
</button>
</div>
</div>
</div> dscp-converter-content の終了
追加機能のタブ
<div class="tabs">
<button class="tab active" data-tab="policy">ポリシーデザイナー</button>
<button class="tab" data-tab="config">構成ジェネレータ</button>
<button class="tab" data-tab="reference">完全なリファレンス</button>
</div>
</div>
セッションコントロール
<div class="session-controls" id="sessionControls">
<span class="session-status" id="sessionStatus">保存されていません</span>
<button class="btn btn-small btn-secondary" onclick="clearSession()">保存データをクリア</button>
</div>
バナーを復元する
<div aria-live="polite" class="alert alert-info" id="restoreBanner" role="status" style="display: none;">
<strong>前回のセッションが見つかりました!</strong>
<button class="btn btn-small btn-primary" onclick="restoreSession()" style="margin: 0 10px;">復元する</button>
<button class="btn btn-small btn-secondary" onclick="dismissRestore()">新たに始める</button>
</div>
パネルの使い方
<div class="how-to-use">
<div class="how-to-use-header">
<span>📖 このツールの使用方法</span>
<span class="toggle-icon">▼</span>
</div>
<div class="how-to-use-content">
<ul>
<li><strong>DSCPコンバータ:</strong>ヘッダー内の 10 進数、16 進数、バイナリ名、および標準名の間で変換します。</li>
<li><strong>ポリシーテンプレート:</strong>一般的なシナリオ (ヘルスケア、教育、エンタープライズ) 向けに事前構成されたポリシーをロードします</li>
<li><strong>ポリシー設計者:</strong>トラフィック クラスを作成し、DSCP 値を割り当て、帯域幅の割合を割り当てます。</li>
<li><strong>レイテンシ計算ツール:</strong>キューの深さを調整して、各クラスの遅延の影響をリアルタイムで確認します</li>
<li><strong>構成ジェネレーター:</strong>Cisco、Juniper、Arista、Aruba のルーター/スイッチ構成を生成</li>
<li><strong>完全なリファレンス:</strong>すべての標準 DSCP 値と使用例のクイックルックアップテーブル</li>
</ul>
</div>
</div>
タブ 1: ポリシーデザイナー
<div class="tab-content active" id="policy">
<div class="section">
<h3>QoSポリシーデザイナー</h3>
<div class="alert alert-info">
<strong>ℹ️情報:</strong>トラフィック クラスと帯域幅の割り当てを定義します。合計が 100% を超えてはなりません。チャートは自動的に更新されます。</div>
ポリシーテンプレート (P0 機能)
<div style="margin-bottom: 20px; padding: 15px; background: #f8f9fa; border-radius: 8px;">
<label style="display: block; margin-bottom: 10px; font-weight: 600;">ポリシー テンプレートのロード:<span class="tooltip-trigger" data-tooltip="Pre-configured policies optimized for common network scenarios.">?</span>
</label>
<select id="templateSelect" onchange="loadTemplate(this.value)" style="width: 100%; max-width: 400px; padding: 10px; border: 2px solid #ced4da; border-radius: 6px;">
<option value="">-- テンプレートを選択 --</option>
<option value="healthcare">ヘルスケア (音声クリティカル)</option>
<option value="education">教育 (ビデオ中心)</option>
<option value="enterprise">エンタープライズ (バランス型)</option>
<option value="retail">小売（ゲスト + 法人）</option>
<option value="datacenter">データセンター (東西)</option>
</select>
</div>
<div style="margin-bottom: 20px;">
<label style="display: block; margin-bottom: 10px; font-weight: 600;">リンク速度 (Mbps):<span class="tooltip-trigger" data-tooltip="Network link capacity - used for bandwidth calculations.">?</span>
</label>
<input id="linkSpeed" max="100000" min="1" style="width: 200px; padding: 10px; border: 2px solid #ced4da; border-radius: 6px;" type="number" value="1000"/>
</div>
<div id="trafficClasses"></div>
<div style="margin-top: 20px;">
<button class="btn btn-primary" id="addClass">+ トラフィッククラスを追加</button>
</div>
<div class="bandwidth-summary" id="bandwidthSummary" style="display: none;">
<h4 style="margin-top: 0;">帯域幅の割り当て</h4>
<div aria-live="assertive" class="alert alert-warning hidden" id="totalWarning" role="alert">
<strong>⚠️警告:</strong>合計帯域幅割り当てが 100% を超えています。パーセンテージを調整します。</div>
<div aria-live="polite" class="alert alert-success hidden" id="totalSuccess" role="status">
<strong>✅ 有効:</strong>合計の割り当ては、<span id="totalPercent">0</span>% - 制限内。</div>
<div aria-atomic="true" aria-live="polite" class="bandwidth-bar-container">
<div aria-label="Bandwidth allocation visualization" class="bandwidth-bar" id="bandwidthBar" role="img"></div>
</div>
<div style="margin-top: 20px;">
<div style="display: flex; justify-content: space-between; margin-bottom: 10px;">
<strong>割り当てられた合計:</strong>
<span id="totalAllocated">0Mbps(0%)</span>
</div>
<div style="display: flex; justify-content: space-between;">
<strong>残り：</strong>
<span id="remaining">1000Mbps(100%)</span>
</div>
</div>
</div>
レイテンシーの影響計算ツール
<div aria-atomic="true" aria-live="polite" class="latency-calculator" id="latencyCalculator" style="display: none;">
<h4 style="margin-top: 0;">⏱️ レイテンシーの影響計算ツール</h4>
<div class="alert alert-info">
<strong>ℹ️情報:</strong>トラフィック クラスごとにキューの深さを調整して、最悪の場合のキュー遅延を確認します。音声は 20 ミリ秒未満、ビデオは 50 ミリ秒未満に抑える必要があります。</div>
<div id="latencyClasses"></div>
<div style="margin-top: 20px; padding: 15px; background: #f8f9fa; border-radius: 6px;">
<h5 style="margin-top: 0;">計算式:</h5>
<code style="background: white; padding: 10px; display: block; border-radius: 4px;">
                            Delay (ms) = (Queue Depth × Packet Size × 8) / (Link Speed × 1,000,000)
                        </code>
<p style="margin-bottom: 0; margin-top: 10px; font-size: 14px; color: #666;">キュー内のすべてのパケットがパケットより先に送信されなければならないという最悪のシナリオを想定しています。</p>
</div>
</div>
</div>
</div>
タブ 2: 構成ジェネレーター
<div class="tab-content" id="config">
<div class="section">
<h3>構成ジェネレーター</h3>
<div class="alert alert-warning">
<strong>⚠️注意:</strong>生成された構成はテンプレートです。運用環境に展開する前に、必ずラボ環境でレビューとテストを行ってください。</div>
<p style="margin-bottom: 20px;">[ポリシー デザイナー] タブでポリシーを設計し、以下でベンダー プラットフォームを選択して構成を生成します。</p>
<h4 style="margin-bottom: 15px;">ベンダー プラットフォームを選択します:</h4>
<div class="vendor-selector">
<button class="vendor-btn active" data-vendor="cisco-ios">Cisco IOS/IOS-XE</button>
<button class="vendor-btn" data-vendor="cisco-nxos">シスコNXOS</button>
<button class="vendor-btn" data-vendor="juniper">ジュニパー JunOS</button>
<button class="vendor-btn" data-vendor="arista">アリスタ EOS</button>
<button class="vendor-btn" data-vendor="aruba">アルバ AOS-CX</button>
</div>
<button class="btn btn-primary" id="generateConfig">構成の生成</button>
<div aria-atomic="false" aria-live="polite" class="hidden" id="configOutput">
<div class="config-output" id="configText"></div>
<button class="copy-btn" onclick="copyConfig()">📋 クリップボードにコピー</button>
</div>
</div>
</div>
タブ 3: 完全なリファレンス
<div class="tab-content" id="reference">
<div class="section">
<h3>DSCP 早見表</h3>
<div style="overflow-x: auto;">
<table style="width: 100%; border-collapse: collapse;">
<thead>
<tr style="background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); color: white;">
<th style="padding: 12px; text-align: left;">名前</th>
<th style="padding: 12px; text-align: left;">10進数</th>
<th style="padding: 12px; text-align: left;">16進数</th>
<th style="padding: 12px; text-align: left;">バイナリ</th>
<th style="padding: 12px; text-align: left;">使用事例</th>
</tr>
</thead>
<tbody id="referenceTable"></tbody>
</table>
</div>
</div>
</div>
</div>
<script>
    let calculationTimeout;
    let trafficClassesData = [];
    let selectedVendor = 'cisco-ios';

    // DSCP Standard Values (Complete RFC 3260 + RFC 5865)
    const dscpStandards = [
        { name: 'CS7', decimal: 56, useCase: 'System control traffic' },
        { name: 'CS6', decimal: 48, useCase: 'Network control and routing' },
        { name: 'EF', decimal: 46, useCase: 'Voice traffic (VoIP)' },
        { name: 'VA', decimal: 44, useCase: 'Voice Admit (RFC 5865)' },
        { name: 'CS5', decimal: 40, useCase: 'Signaling and network control' },
        { name: 'AF41', decimal: 34, useCase: 'Video conferencing' },
        { name: 'AF42', decimal: 36, useCase: 'Video conferencing' },
        { name: 'AF43', decimal: 38, useCase: 'Video conferencing' },
        { name: 'CS4', decimal: 32, useCase: 'Real-time interactive traffic' },
        { name: 'AF31', decimal: 26, useCase: 'Streaming video' },
        { name: 'AF32', decimal: 28, useCase: 'Streaming video' },
        { name: 'AF33', decimal: 30, useCase: 'Streaming video' },
        { name: 'CS3', decimal: 24, useCase: 'Call signaling' },
        { name: 'AF21', decimal: 18, useCase: 'High priority data' },
        { name: 'AF22', decimal: 20, useCase: 'High priority data' },
        { name: 'AF23', decimal: 22, useCase: 'High priority data' },
        { name: 'CS2', decimal: 16, useCase: 'OAM & management traffic' },
        { name: 'AF11', decimal: 10, useCase: 'Medium priority data' },
        { name: 'AF12', decimal: 12, useCase: 'Medium priority data' },
        { name: 'AF13', decimal: 14, useCase: 'Medium priority data' },
        { name: 'CS1', decimal: 8, useCase: 'Scavenger/Bulk' },
        { name: 'CS0/BE', decimal: 0, useCase: 'Best effort' }
    ];

    // Generate ToS Byte Display
    function generateToSByteDisplay(decimal) {
        // Create 8-bit ToS byte with DSCP in bits 7-2, ECN in bits 1-0
        const binary6bit = decimal.toString(2).padStart(6, '0');
        const binary8bit = binary6bit + '00'; // Assume ECN bits = 00

        // Extract IP Precedence (bits 7-5)
        const ipPrecedence = parseInt(binary8bit.substring(0, 3), 2);

        return {
            tosFullByte: binary8bit,
            dscpBits: binary6bit,
            ecnBits: '00',
            ipPrecedence: ipPrecedence
        };
    }

    // Pathway selection functions
    function selectPathway(pathway) {
        const gettingStarted = document.getElementById('gettingStarted');
        const converterToggle = document.getElementById('converterToggle');
        const tabsContainer = document.querySelector('.tabs');

        // Hide getting started
        gettingStarted.style.display = 'none';

        if (pathway === 'template') {
            // Show template selector and policy designer tab
            tabsContainer.classList.add('show');
            switchTab('policy');
            // Scroll to template selector
            setTimeout(() => {
                document.getElementById('templateSelect').scrollIntoView({ behavior: 'smooth', block: 'start' });
            }, 100);
        } else if (pathway === 'converter') {
            // Show DSCP converter
            converterToggle.style.display = 'flex';
            toggleConverter();
        } else if (pathway === 'design') {
            // Show tabs and go to policy designer
            tabsContainer.classList.add('show');
            converterToggle.style.display = 'flex';
            switchTab('policy');
        }
    }

    function toggleConverter() {
        const content = document.getElementById('converterContent');
        const toggle = document.getElementById('converterToggle');
        const icon = document.getElementById('toggleIcon');

        const isOpen = content.classList.contains('show');

        if (isOpen) {
            content.classList.remove('show');
            icon.classList.remove('open');
            toggle.setAttribute('aria-expanded', 'false');
        } else {
            content.classList.add('show');
            icon.classList.add('open');
            toggle.setAttribute('aria-expanded', 'true');
        }
    }

    // Initialize
    function init() {
        populateDSCPSelect();
        populateReferenceTable();
        setupEventListeners();
        updateDSCPDisplay();
        addTrafficClass(); // Add one default class
    }

    // Populate DSCP select dropdown
    function populateDSCPSelect() {
        const select = document.getElementById('dscpName');
        dscpStandards.forEach(dscp => {
            const option = document.createElement('option');
            option.value = dscp.decimal;
            option.textContent = `${dscp.name} (${dscp.decimal})`;
            select.appendChild(option);
        });
    }

    // Populate reference table
    function populateReferenceTable() {
        const tbody = document.getElementById('referenceTable');
        dscpStandards.forEach((dscp, index) => {
            const binary = dscp.decimal.toString(2).padStart(6, '0');
            const hex = '0x' + dscp.decimal.toString(16).toUpperCase().padStart(2, '0');
            const row = tbody.insertRow();
            row.style.background = index % 2 === 0 ? '#f8f9fa' : 'white';
            row.innerHTML = `
                <td style="padding: 10px; font-weight: bold;">${dscp.name}</td>
                <td style="padding: 10px; font-family: 'Courier New', monospace;">${dscp.decimal}</td>
                <td style="padding: 10px; font-family: 'Courier New', monospace;">${hex}</td>
                <td style="padding: 10px; font-family: 'Courier New', monospace;">${binary}</td>
                <td style="padding: 10px;">${dscp.useCase}</td>
            `;
        });
    }

    // Setup event listeners
    function setupEventListeners() {
        // DSCP converter inputs
        document.getElementById('dscpDecimal').addEventListener('input', () => {
            const val = parseInt(document.getElementById('dscpDecimal').value) || 0;
            setDSCP(Math.max(0, Math.min(63, val)));
        });

        document.getElementById('dscpHex').addEventListener('input', () => {
            const val = document.getElementById('dscpHex').value.replace('0x', '').replace('0X', '');
            if (val === '') return;

            // Validate hex format
            if (!/^[0-9A-Fa-f]{1,2}$/.test(val)) {
                return; // Silently skip invalid, let HTML5 validation handle
            }

            const decimal = parseInt(val, 16);
            if (decimal >= 0 && decimal <= 63) {
                setDSCP(decimal);
            }
        });

        document.getElementById('dscpBinary').addEventListener('input', () => {
            const val = document.getElementById('dscpBinary').value;
            if (val === '') return;

            // Validate binary format
            if (!/^[01]{1,6}$/.test(val)) {
                // Show error message
                const errorMsg = document.getElementById('conversionError') ||
                    (function() {
                        const div = document.createElement('div');
                        div.id = 'conversionError';
                        div.style.cssText = 'color: #c62828; font-size: 13px; margin-top: 8px; padding: 8px; background: #ffebee; border-radius: 4px;';
                        document.getElementById('converterContent').insertBefore(div, document.getElementById('dscpInfo'));
                        return div;
                    })();

                errorMsg.textContent = 'Binary must be 1-6 digits containing only 0s and 1s (e.g., 101110)';
                errorMsg.style.display = 'block';
                return;
            }

            // Clear error
            const errorMsg = document.getElementById('conversionError');
            if (errorMsg) errorMsg.style.display = 'none';

            // Pad to 6 bits and convert
            const padded = val.padStart(6, '0');
            const decimal = parseInt(padded, 2);
            setDSCP(decimal);
        });

        document.getElementById('dscpName').addEventListener('change', (e) => {
            if (e.target.value) {
                setDSCP(parseInt(e.target.value));
            }
        });

        // Tab switching
        document.querySelectorAll('.tab').forEach(tab => {
            tab.addEventListener('click', (e) => {
                const targetTab = e.target.dataset.tab;
                switchTab(targetTab);
            });
        });

        // Policy designer
        document.getElementById('addClass').addEventListener('click', addTrafficClass);
        document.getElementById('linkSpeed').addEventListener('input', updateBandwidthDisplay);

        // Config generator
        document.querySelectorAll('.vendor-btn').forEach(btn => {
            btn.addEventListener('click', (e) => {
                document.querySelectorAll('.vendor-btn').forEach(b => b.classList.remove('active'));
                e.target.classList.add('active');
                selectedVendor = e.target.dataset.vendor;
            });
        });

        document.getElementById('generateConfig').addEventListener('click', generateConfiguration);
    }

    // Set DSCP value and update all fields
    function setDSCP(decimal) {
        decimal = Math.max(0, Math.min(63, decimal));

        document.getElementById('dscpDecimal').value = decimal;
        document.getElementById('dscpHex').value = '0x' + decimal.toString(16).toUpperCase().padStart(2, '0');
        document.getElementById('dscpBinary').value = decimal.toString(2).padStart(6, '0');

        // Find matching standard name
        const match = dscpStandards.find(d => d.decimal === decimal);
        if (match) {
            document.getElementById('dscpName').value = decimal;
            document.getElementById('currentValue').textContent = `DSCP ${decimal} (${match.name})`;
            document.getElementById('useCase').textContent = match.useCase;
        } else {
            document.getElementById('dscpName').value = '';
            document.getElementById('currentValue').textContent = `DSCP ${decimal} (Custom)`;
            document.getElementById('useCase').textContent = 'Custom DSCP value';
        }

        // Update ToS byte display
        const tosInfo = generateToSByteDisplay(decimal);
        document.getElementById('tosDisplayDscp').textContent = tosInfo.dscpBits;
        document.getElementById('tosDisplayDscpDec').textContent = decimal;
        document.getElementById('tosDisplayEcn').textContent = tosInfo.ecnBits;
        document.getElementById('tosDisplayIpp').textContent = tosInfo.ipPrecedence + ' (Legacy IPP)';
    }

    // Update DSCP display
    function updateDSCPDisplay() {
        setDSCP(46); // Default to EF
    }

    // Switch tab
    function switchTab(tabName) {
        document.querySelectorAll('.tab').forEach(t => t.classList.remove('active'));
        document.querySelectorAll('.tab-content').forEach(c => c.classList.remove('active'));

        document.querySelector(`.tab[data-tab="${tabName}"]`).classList.add('active');
        document.getElementById(tabName).classList.add('active');
    }

    // Add traffic class
    function addTrafficClass() {
        const id = Date.now();
        trafficClassesData.push({
            id: id,
            name: `Class ${trafficClassesData.length + 1}`,
            dscp: 0,
            bandwidth: 10
        });

        renderTrafficClasses();
        updateBandwidthDisplay();
    }

    // Render traffic classes
    function renderTrafficClasses() {
        const container = document.getElementById('trafficClasses');
        container.innerHTML = trafficClassesData.map(tc => `
            <div class="traffic-class">
                <div class="traffic-class-header">
                    <input type="text" value="${tc.name}" onchange="updateClass(${tc.id}, 'name', this.value)" placeholder="Class Name">
                    <select onchange="updateClass(${tc.id}, 'dscp', this.value)">
                        ${dscpStandards.map(d => `
                            <option value="${d.decimal}" ${tc.dscp == d.decimal ? 'selected' : ''}>${d.name} (${d.decimal})</option>
                        `).join('')}
                    </select>
                    <input type="number" value="${tc.bandwidth}" onchange="updateClass(${tc.id}, 'bandwidth', this.value)" placeholder="%" min="0" max="100" style="width: 100px;">
                    <button class="remove-class-btn" onclick="removeClass(${tc.id})">Remove</button>
                </div>
            </div>
        `).join('');
    }

    // Update traffic class
    function updateClass(id, field, value) {
        const tc = trafficClassesData.find(t => t.id === id);
        if (tc) {
            tc[field] = field === 'bandwidth' || field === 'dscp' ? parseFloat(value) : value;
            updateBandwidthDisplay();
        }
    }

    // Remove traffic class
    function removeClass(id) {
        trafficClassesData = trafficClassesData.filter(t => t.id !== id);
        renderTrafficClasses();
        updateBandwidthDisplay();
    }

    // Update bandwidth display
    function updateBandwidthDisplay() {
        if (trafficClassesData.length === 0) {
            document.getElementById('bandwidthSummary').style.display = 'none';
            return;
        }

        document.getElementById('bandwidthSummary').style.display = 'block';

        const linkSpeed = parseFloat(document.getElementById('linkSpeed').value) || 1000;
        const totalPercent = trafficClassesData.reduce((sum, tc) => sum + tc.bandwidth, 0);
        const totalMbps = (totalPercent / 100) * linkSpeed;
        const remaining = linkSpeed - totalMbps;
        const remainingPercent = 100 - totalPercent;

        // Update displays
        document.getElementById('totalPercent').textContent = totalPercent.toFixed(1);
        document.getElementById('totalAllocated').textContent = `${totalMbps.toFixed(0)} Mbps (${totalPercent.toFixed(1)}%)`;
        document.getElementById('remaining').textContent = `${remaining.toFixed(0)} Mbps (${remainingPercent.toFixed(1)}%)`;

        // Show/hide warnings
        if (totalPercent > 100) {
            document.getElementById('totalWarning').classList.remove('hidden');
            document.getElementById('totalSuccess').classList.add('hidden');
        } else {
            document.getElementById('totalWarning').classList.add('hidden');
            document.getElementById('totalSuccess').classList.remove('hidden');
        }

        // Update bandwidth bar
        const bar = document.getElementById('bandwidthBar');
        const colors = ['#667eea', '#4CAF50', '#ffc107', '#17a2b8', '#e83e8c', '#fd7e14'];
        bar.innerHTML = trafficClassesData.map((tc, i) => `
            <div class="bandwidth-segment" style="width: ${tc.bandwidth}%; background: ${colors[i % colors.length]};">
                ${tc.bandwidth}%
            </div>
        `).join('');

        // Update latency calculator
        updateLatencyCalculator();
    }

    // Update latency calculator
    function updateLatencyCalculator() {
        if (trafficClassesData.length === 0) {
            document.getElementById('latencyCalculator').style.display = 'none';
            return;
        }

        document.getElementById('latencyCalculator').style.display = 'block';
        renderLatencyClasses();
    }

    // Render latency classes
    function renderLatencyClasses() {
        const container = document.getElementById('latencyClasses');

        // Default packet sizes for common traffic types (in bytes)
        const packetSizes = {
            46: 200,   // EF - Voice (small packets)
            34: 1500,  // AF41 - Video
            26: 1500,  // AF31 - Streaming
            24: 200,   // CS3 - Signaling (small packets)
            18: 1500,  // AF21 - High Data
            10: 1500,  // AF11 - Medium Data
            0: 1500    // BE - Best Effort
        };

        container.innerHTML = trafficClassesData.map((tc, i) => {
            // Initialize queue depth if not set
            if (!tc.queueDepth) tc.queueDepth = 10;

            const packetSize = packetSizes[tc.dscp] || 1500;
            const linkSpeed = parseFloat(document.getElementById('linkSpeed').value) || 1000;

            // Calculate latency: (Queue Depth × Packet Size × 8 bits/byte) / (Link Speed in Mbps × 1,000,000)
            const latencyMs = (tc.queueDepth * packetSize * 8) / (linkSpeed * 1000);

            // Determine color based on thresholds
            let latencyClass = 'good';
            let threshold = 'Good';
            if (tc.dscp === 46) { // Voice
                if (latencyMs > 20) {
                    latencyClass = 'critical';
                    threshold = 'Critical (>20ms for voice)';
                } else if (latencyMs > 10) {
                    latencyClass = 'warning';
                    threshold = 'Warning (>10ms for voice)';
                } else {
                    threshold = 'Good (<10ms for voice)';
                }
            } else if (tc.dscp >= 26 && tc.dscp <= 38) { // Video
                if (latencyMs > 50) {
                    latencyClass = 'critical';
                    threshold = 'Critical (>50ms for video)';
                } else if (latencyMs > 30) {
                    latencyClass = 'warning';
                    threshold = 'Warning (>30ms for video)';
                } else {
                    threshold = 'Good (<30ms for video)';
                }
            } else { // Data
                if (latencyMs > 100) {
                    latencyClass = 'warning';
                    threshold = 'High latency (>100ms)';
                } else {
                    threshold = 'Acceptable';
                }
            }

            // Add status icon based on latency class
            let statusIcon = '✓';
            if (latencyClass === 'critical') statusIcon = '✗';
            else if (latencyClass === 'warning') statusIcon = '⚠';

            return `
                <div class="latency-class">
                    <div class="latency-class-header">
                        <div class="latency-class-name">${tc.name}</div>
                        <div class="latency-result ${latencyClass}" id="latency-${tc.id}">
                            ${statusIcon} ${latencyMs.toFixed(2)} ms
                        </div>
                    </div>
                    <div class="slider-container">
                        <div class="slider-label">
                            <span>Queue Depth (packets):</span>
                            <span id="queueDepth-${tc.id}">${tc.queueDepth}</span>
                        </div>
                        <input
                            type="range"
                            class="slider-input"
                            min="1"
                            max="100"
                            value="${tc.queueDepth}"
                            oninput="updateQueueDepth(${tc.id}, this.value)"
                            aria-label="Adjust queue depth for ${tc.name}"
                        >
                    </div>
                    <div class="latency-details">
                        <strong>Status:</strong> ${statusIcon} ${threshold}<br>
                        <strong>Packet Size:</strong> ${packetSize} bytes<br>
                        <strong>Calculation:</strong> (${tc.queueDepth} packets × ${packetSize} bytes × 8 bits) / (${linkSpeed} Mbps × 1,000,000) = ${latencyMs.toFixed(2)} ms
                    </div>
                </div>
            `;
        }).join('');
    }

    // Update queue depth for latency calculation
    function updateQueueDepth(id, depth) {
        const tc = trafficClassesData.find(t => t.id === id);
        if (tc) {
            tc.queueDepth = parseInt(depth);
            document.getElementById('queueDepth-' + id).textContent = depth;
            renderLatencyClasses();
        }
    }

    // Generate configuration
    function generateConfiguration() {
        if (trafficClassesData.length === 0) {
            alert('Please add at least one traffic class in the Policy Designer tab.');
            return;
        }

        const config = generateConfigForVendor(selectedVendor);
        document.getElementById('configText').innerHTML = config;
        document.getElementById('configOutput').classList.remove('hidden');
    }

    // Generate vendor-specific config
    function generateConfigForVendor(vendor) {
        let config = '';

        if (vendor === 'cisco-ios') {
            config = `! Cisco IOS/IOS-XE QoS Configuration\n!\n`;

            // Class maps
            trafficClassesData.forEach(tc => {
                config += `class-map match-any ${tc.name.replace(/ /g, '-')}\n`;
                config += ` match dscp ${tc.dscp}\n!\n`;
            });

            // Policy map
            config += `policy-map QOS-POLICY\n`;
            trafficClassesData.forEach(tc => {
                config += ` class ${tc.name.replace(/ /g, '-')}\n`;
                config += `  bandwidth percent ${tc.bandwidth}\n`;
            });
            config += `!\n! Apply to interface\ninterface GigabitEthernet0/0\n service-policy output QOS-POLICY\n`;

        } else if (vendor === 'cisco-nxos') {
            config = `! Cisco NXOS QoS Configuration\n!\n`;
            trafficClassesData.forEach(tc => {
                config += `class-map type qos match-all ${tc.name.replace(/ /g, '-')}\n`;
                config += ` match dscp ${tc.dscp}\n!\n`;
            });

            config += `policy-map type qos QOS-POLICY\n`;
            trafficClassesData.forEach(tc => {
                config += ` class ${tc.name.replace(/ /g, '-')}\n`;
                config += `  bandwidth percent ${tc.bandwidth}\n`;
            });
            config += `!\n! Apply to interface\ninterface Ethernet1/1\n service-policy type qos output QOS-POLICY\n`;

        } else if (vendor === 'juniper') {
            config = `# Juniper JunOS QoS Configuration\n#\n`;
            config += `set class-of-service classifiers dscp QOS-CLASSIFIER {\n`;
            trafficClassesData.forEach((tc, i) => {
                config += `  forwarding-class ${tc.name.replace(/ /g, '-')} {\n`;
                config += `    loss-priority low code-points ${tc.dscp}\n`;
                config += `  }\n`;
            });
            config += `}\n`;

        } else if (vendor === 'arista') {
            config = `! Arista EOS QoS Configuration\n!\n`;
            trafficClassesData.forEach(tc => {
                config += `class-map type qos match-any ${tc.name.replace(/ /g, '-')}\n`;
                config += ` match dscp ${tc.dscp}\n!\n`;
            });

        } else if (vendor === 'aruba') {
            config = `! Aruba AOS-CX QoS Configuration\n!\n`;
            trafficClassesData.forEach(tc => {
                config += `qos dscp-map ${tc.name.replace(/ /g, '-')} code-point ${tc.dscp} local-priority ${Math.min(7, Math.floor(tc.dscp / 8))}\n`;
            });
        }

        return config;
    }

    // Copy config to clipboard
    function copyConfig() {
        const text = document.getElementById('configText').textContent;
        navigator.clipboard.writeText(text).then(() => {
            alert('Configuration copied to clipboard!');
        });
    }

    // Policy Templates (P0 Feature)
    const policyTemplates = {
        healthcare: {
            name: "Healthcare (Voice-Critical)",
            classes: [
                { name: "Voice (VoIP)", dscp: 46, bandwidth: 30 },
                { name: "Medical Imaging", dscp: 34, bandwidth: 25 },
                { name: "EMR Data", dscp: 18, bandwidth: 20 },
                { name: "Best Effort", dscp: 0, bandwidth: 25 }
            ]
        },
        education: {
            name: "Education (Video-Heavy)",
            classes: [
                { name: "Video Conferencing", dscp: 34, bandwidth: 40 },
                { name: "Voice", dscp: 46, bandwidth: 15 },
                { name: "Learning Apps", dscp: 18, bandwidth: 25 },
                { name: "Best Effort", dscp: 0, bandwidth: 20 }
            ]
        },
        enterprise: {
            name: "Enterprise (Balanced)",
            classes: [
                { name: "Voice", dscp: 46, bandwidth: 20 },
                { name: "Video", dscp: 34, bandwidth: 25 },
                { name: "Business Critical", dscp: 26, bandwidth: 25 },
                { name: "Best Effort", dscp: 0, bandwidth: 30 }
            ]
        },
        retail: {
            name: "Retail (Guest + Corporate)",
            classes: [
                { name: "POS Systems", dscp: 34, bandwidth: 30 },
                { name: "Corporate Voice", dscp: 46, bandwidth: 15 },
                { name: "Corporate Data", dscp: 18, bandwidth: 25 },
                { name: "Guest WiFi", dscp: 0, bandwidth: 30 }
            ]
        },
        datacenter: {
            name: "Data Center (East-West)",
            classes: [
                { name: "Storage Replication", dscp: 26, bandwidth: 35 },
                { name: "Database", dscp: 18, bandwidth: 30 },
                { name: "Application", dscp: 10, bandwidth: 25 },
                { name: "Best Effort", dscp: 0, bandwidth: 10 }
            ]
        }
    };

    function loadTemplate(templateKey) {
        if (!templateKey) return;

        const template = policyTemplates[templateKey];
        if (!template) return;

        // Clear existing classes
        trafficClassesData = [];

        // Load template classes
        template.classes.forEach(tc => {
            trafficClassesData.push({
                id: Date.now() + Math.random(),
                name: tc.name,
                dscp: tc.dscp,
                bandwidth: tc.bandwidth,
                queueDepth: 10 // Default queue depth
            });
        });

        // Update displays
        renderTrafficClasses();
        updateBandwidthDisplay();

        // Reset template selector
        document.getElementById('templateSelect').value = '';

        // Show success message
        const alert = document.createElement('div');
        alert.className = 'alert alert-success fade-in';
        alert.innerHTML = `<strong>✓ Template Loaded:</strong> ${template.name} policy applied successfully.`;
        alert.style.marginTop = '15px';

        const templateSelect = document.getElementById('templateSelect').parentElement;
        templateSelect.appendChild(alert);

        setTimeout(() => {
            alert.remove();
        }, 3000);
    }

    // Session Management (P0 Feature)
    let sessionManager;

    function initializeSessionManagement() {
        sessionManager = new SessionManager('qos-calculator');

        // Check for previous session
        const savedData = sessionManager.promptRestore();

        // Start auto-save
        sessionManager.startAutoSave(() => {
            return {
                linkSpeed: document.getElementById('linkSpeed').value,
                trafficClasses: trafficClassesData,
                selectedVendor: selectedVendor
            };
        });
    }

    function restoreSession() {
        const data = sessionManager.load();
        if (data) {
            if (data.linkSpeed) {
                document.getElementById('linkSpeed').value = data.linkSpeed;
            }

            if (data.trafficClasses && data.trafficClasses.length > 0) {
                trafficClassesData = data.trafficClasses;
                renderTrafficClasses();
                updateBandwidthDisplay();
            }

            if (data.selectedVendor) {
                selectedVendor = data.selectedVendor;
                document.querySelectorAll('.vendor-btn').forEach(btn => {
                    if (btn.dataset.vendor === selectedVendor) {
                        btn.classList.add('active');
                    } else {
                        btn.classList.remove('active');
                    }
                });
            }

            document.getElementById('restoreBanner').style.display = 'none';
        }
    }

    function dismissRestore() {
        document.getElementById('restoreBanner').style.display = 'none';
    }

    function clearSession() {
        if (confirm('Clear all saved data?')) {
            sessionManager.clear();
            document.getElementById('linkSpeed').value = 1000;
            trafficClassesData = [];
            renderTrafficClasses();
            updateBandwidthDisplay();
        }
    }

    function formatNumber(num) {
        return num.toString().replace(/\B(?=(\d{3})+(?!\d))/g, ',');
    }

    function animateCards(containerSelector, delay) {
        const cards = document.querySelectorAll(`${containerSelector} .result-card, ${containerSelector} .latency-class`);
        cards.forEach((card, index) => {
            setTimeout(() => {
                card.classList.add('fade-in');
            }, index * delay);
        });
    }

    // Initialize on load
    init();

    // Load common utilities after DOM is ready
    const commonScript = document.createElement('script');
    commonScript.src = '/assets/js/tools-common.js';
    commonScript.onload = () => {
        initializeSessionManagement();
    };
    document.head.appendChild(commonScript);
    </script></body>