.. عنوان: VLAN اور 802.1Q ٹرنکنگ اینالائزر
.. slug: vlan-trunking-analyzer
.. تاریخ: 2026-03-27 12:00:00 UTC
.. ٹیگز: نیٹ ورکنگ، vlan، 802.1q، کیلکولیٹر، ٹول
.. زمرہ: کیلکولیٹر
.. لنک:
.. تفصیل: 802.1Q ٹرنک اوور ہیڈ کا حساب لگائیں، VLAN کی اجازت شدہ فہرستوں کو پارس کریں، اور نیٹ ورک ٹرنک ڈیزائن کے لیے QinQ ڈبل ٹیگ MTU اثر کی منصوبہ بندی کریں۔
.. قسم: متن
<style>
/* ── CANONICAL DESIGN SYSTEM ─────────────────────────────────────────────── */
.calc-container { max-width: 900px; 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; opacity: 0.95; font-size: 15px; }
.input-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 15px; margin-top: 20px; }
.input-group { display: flex; flex-direction: column; }
.input-group label { margin-bottom: 8px; font-weight: 600; color: rgba(255,255,255,0.95); font-size: 14px; }
.input-group input, .input-group select, .input-group textarea {
    padding: 14px; font-size: 14px; border: 2px solid rgba(255,255,255,0.3); border-radius: 6px;
    background: rgba(255,255,255,0.95); transition: all 0.3s ease; box-sizing: border-box; font-family: inherit;
}
.input-group input:focus, .input-group select:focus, .input-group textarea:focus {
    outline: none; border-color: #4CAF50; background: white; box-shadow: 0 0 0 3px rgba(76,175,80,0.1);
}
.button-container { margin-top: 20px; display: flex; justify-content: center; gap: 10px; flex-wrap: wrap; }
.calc-button {
    padding: 14px 35px; font-size: 16px; background: #4CAF50; color: white;
    border: none; border-radius: 6px; cursor: pointer; font-weight: bold;
    transition: all 0.3s ease; box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}
.calc-button:hover  { background: #45a049; transform: translateY(-1px); box-shadow: 0 4px 8px rgba(0,0,0,0.3); }
.calc-button:active { background: #3d8b40; transform: translateY(0); }
.calc-button.secondary { background: rgba(255,255,255,0.2); }
.calc-button.secondary:hover { background: rgba(255,255,255,0.3); transform: translateY(-1px); }
.help-text { margin-top: 15px; font-size: 14px; color: rgba(255,255,255,0.9); background: rgba(0,0,0,0.1); padding: 10px 15px; border-radius: 4px; }
.result-section { background: white; border: 1px solid #e0e0e0; border-radius: 8px; margin-top: 20px; overflow: hidden; box-shadow: 0 2px 4px rgba(0,0,0,0.05); transition: all 0.3s ease; }
.result-section:hover { box-shadow: 0 4px 8px rgba(0,0,0,0.1); }
.section-header { background: linear-gradient(135deg, #4CAF50 0%, #45a049 100%); color: white; padding: 15px 20px; font-size: 18px; font-weight: bold; }
.section-content { padding: 20px; background: #fafafa; }
.result-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 15px; }
.data-row { display: flex; flex-direction: column; padding: 15px; background: white; border-radius: 6px; border-left: 4px solid #4CAF50; box-shadow: 0 1px 3px rgba(0,0,0,0.05); }
.data-label { font-weight: bold; color: #555; font-size: 13px; margin-bottom: 8px; text-transform: uppercase; letter-spacing: 0.5px; }
.data-value { color: #4CAF50; font-family: 'Courier New', monospace; font-size: 20px; font-weight: bold; }
.data-value.small { font-size: 14px; }
.info-box { margin-top: 15px; padding: 15px; background: #e3f2fd; color: #1565c0; border-radius: 8px; border-left: 4px solid #2196F3; font-size: 14px; line-height: 1.6; }
.info-box strong { color: #0d47a1; }
table { width: 100%; border-collapse: collapse; }
th { background: linear-gradient(135deg, #4CAF50 0%, #45a049 100%); color: white; padding: 10px; text-align: left; }
td { padding: 8px 10px; border-bottom: 1px solid #eee; font-size: 13px; }
tr:hover td { background: #f8fff8; }
.code-block { background: #1e1e2e; color: #cdd6f4; padding: 12px 16px; border-radius: 6px; font-family: 'Courier New', monospace; font-size: 13px; overflow-x: auto; white-space: pre; margin: 8px 0; }
@media (max-width: 768px) {
    .input-grid, .result-grid { grid-template-columns: 1fr; }
    .calc-header h2 { font-size: 22px; }
    .data-value { font-size: 16px; }
    .calc-container { padding: 10px; }
}
/* ── END CANONICAL ────────────────────────────────────────────────────────── */

.vlan-tag  { background: #4CAF50; color: white; padding: 3px 8px; border-radius: 12px; font-size: 12px; display: inline-block; margin: 2px; }
.vlan-tags { display: flex; flex-wrap: wrap; gap: 4px; margin-top: 8px; }
/* Labels inside .section-content (not on purple bg) need dark text */
.section-content .input-group label { color: #555; }
.section-content .input-group input,
.section-content .input-group select {
    border: 1px solid #ddd; background: white;
}
.section-content .input-group input:focus,
.section-content .input-group select:focus {
    border-color: #4CAF50; box-shadow: 0 0 0 3px rgba(76,175,80,0.1); background: white;
}
</style>
<div class="calc-container">
<div class="calc-header">
<h2>VLAN اور 802.1Q ٹرنکنگ اینالائزر</h2>
<p>VLAN کی اجازت شدہ فہرستوں کو پارس کریں، ٹیگ اوور ہیڈ کا حساب لگائیں، اور QinQ MTU اثر کی منصوبہ بندی کریں۔</p>
</div>
سیکشن 1: VLAN کی اجازت یافتہ فہرست پارسر
<div class="result-section">
<div class="section-header">VLAN کی اجازت یافتہ فہرست پارسر</div>
<div class="section-content">
<div class="input-grid">
<div class="input-group" style="grid-column:1/-1">
<label>VLAN فہرست (جیسے 1-10,20,100-200,4094)</label>
<input id="vlanList" placeholder="1-10,20,100-200,4094" type="text" value="1-10,20,100-200,4094"/>
</div>
</div>
<div class="button-container" style="justify-content:flex-start;margin-top:12px">
<button class="calc-button" onclick="parseVlanList()">تجزیہ کریں۔</button>
</div>
<div id="vlanResult" style="display:none;margin-top:15px"></div>
</div>
</div>
سیکشن 2: 802.1Q ٹیگ اوور ہیڈ کیلکولیٹر
<div class="result-section">
<div class="section-header">802.1Q ٹیگ اوور ہیڈ کیلکولیٹر</div>
<div class="section-content">
<div class="input-grid">
<div class="input-group">
<label>بیس MTU (بائٹس)</label>
<input id="baseMtu" max="9216" min="64" type="number" value="1500"/>
</div>
<div class="input-group">
<label>ٹیگنگ موڈ</label>
<select id="tagMode">
<option value="untagged">غیر ٹیگ شدہ (کوئی اوور ہیڈ نہیں)</option>
<option selected="" value="dot1q">802.1Q (سنگل ٹیگ، +4 بائٹس)</option>
<option value="qinq">QinQ / 802.1ad (ڈبل ٹیگ، +8 بائٹس)</option>
</select>
</div>
<div class="input-group">
<label>لنک کی رفتار (Gbps)</label>
<select id="linkSpeed">
<option value="1">1 جی بی پی ایس</option>
<option selected="" value="10">10 جی بی پی ایس</option>
<option value="25">25 جی بی پی ایس</option>
<option value="40">40 جی بی پی ایس</option>
<option value="100">100 جی بی پی ایس</option>
<option value="400">400 جی بی پی ایس</option>
</select>
</div>
</div>
<div class="button-container" style="justify-content:flex-start;margin-top:12px">
<button class="calc-button" onclick="calcOverhead()">حساب لگانا</button>
</div>
<div id="overheadResult" style="display:none;margin-top:15px"></div>
</div>
</div>
سیکشن 3: QinQ/802.1ad ٹیگ بائٹ لے آؤٹ حوالہ
<div class="result-section">
<div class="section-header">QinQ/802.1ad ڈبل ٹیگ پلاننگ</div>
<div class="section-content">
<table>
<tr><th>فریم کی قسم</th><th>ٹیگ بائٹس</th><th>ایتھر ٹائپ</th><th>فیلڈز شامل کیے گئے۔</th></tr>
<tr><td>غیر ٹیگ شدہ 802.3</td><td>0</td><td>—</td><td>—</td></tr>
<tr><td>802.1Q (dot1q)</td><td>+4</td><td>0x8100</td><td>TPID (2) + TCI: PCP(3) + DEI(1) + VID(12)</td></tr>
<tr><td>QinQ/802.1ad</td><td>+8</td><td>0x88A8 بیرونی</td><td>بیرونی ٹیگ (4) + اندرونی 802.1Q ٹیگ (4)</td></tr>
</table>
</div>
</div>
</div>
<script>
function expandVlanRange(str) {
    const vlans = new Set();
    str.split(',').forEach(part => {
        part = part.trim();
        if (part.includes('-')) {
            const [start, end] = part.split('-').map(Number);
            if (!isNaN(start) && !isNaN(end) && start <= end && start >= 1 && end <= 4094) {
                for (let v = start; v <= end; v++) vlans.add(v);
            }
        } else {
            const v = parseInt(part);
            if (!isNaN(v) && v >= 1 && v <= 4094) vlans.add(v);
        }
    });
    return Array.from(vlans).sort((a, b) => a - b);
}

function compressVlanList(vlans) {
    if (!vlans.length) return '';
    const ranges = [];
    let start = vlans[0], end = vlans[0];
    for (let i = 1; i < vlans.length; i++) {
        if (vlans[i] === end + 1) { end = vlans[i]; }
        else {
            ranges.push(start === end ? `${start}` : `${start}-${end}`);
            start = end = vlans[i];
        }
    }
    ranges.push(start === end ? `${start}` : `${start}-${end}`);
    return ranges.join(',');
}

function parseVlanList() {
    const input = document.getElementById('vlanList').value;
    const vlans = expandVlanRange(input);
    const div = document.getElementById('vlanResult');
    div.style.display = 'block';
    if (!vlans.length) { div.innerHTML = '<strong style="color:red">No valid VLANs found. Valid range: 1\u20134094.</strong>'; return; }
    const tagsHtml = vlans.slice(0, 100).map(v => `<span class="vlan-tag">${v}</span>`).join('') +
        (vlans.length > 100 ? `<span class="vlan-tag">+${vlans.length - 100} more</span>` : '');
    div.innerHTML = `
        <strong>Count:</strong> ${vlans.length} VLANs<br>
        <strong>Normalized:</strong> <code>${compressVlanList(vlans)}</code><br>
        <strong>Range:</strong> VLAN ${vlans[0]} \u2013 ${vlans[vlans.length - 1]}<br>
        <div class="vlan-tags">${tagsHtml}</div>`;
}

function calcOverhead() {
    const baseMtu = parseInt(document.getElementById('baseMtu').value);
    const div = document.getElementById('overheadResult');
    div.style.display = 'block';
    if (isNaN(baseMtu) || baseMtu < 64 || baseMtu > 9216) {
        div.innerHTML = '<strong style="color:red">Invalid MTU. Enter a value between 64\u20139216 bytes.</strong>';
        return;
    }
    const mode = document.getElementById('tagMode').value;
    const speedGbps = parseFloat(document.getElementById('linkSpeed').value);
    const tagBytes = mode === 'untagged' ? 0 : mode === 'dot1q' ? 4 : 8;
    const effectiveMtu = baseMtu - tagBytes;
    const overheadPct = tagBytes > 0 ? (tagBytes / (baseMtu + tagBytes + 18) * 100).toFixed(3) : 0;
    const throughputLoss = tagBytes > 0
        ? ((tagBytes / (baseMtu + 18 + tagBytes)) * speedGbps).toFixed(4)
        : 0;
    div.innerHTML = `
        <strong>Tag overhead:</strong> ${tagBytes} bytes per frame<br>
        <strong>Effective payload MTU:</strong> ${effectiveMtu} bytes (set this on routed sub-interfaces)<br>
        <strong>Frame overhead:</strong> ${overheadPct}% of wire bandwidth consumed by tag bytes<br>
        <strong>Throughput lost at ${speedGbps} Gbps:</strong> ~${throughputLoss} Gbps<br>
        ${tagBytes > 0 ? `<br><em>Recommendation: If running IP over this trunk, set interface MTU to ${effectiveMtu} to avoid fragmentation, or increase the physical MTU to ${baseMtu + tagBytes} if the switch supports jumbo frames.</em>` : ''}`;
}
</script>