MTU overhead calculator

Open MTU overhead calculator on Happytails.ai. This view has the same page content and links, with explicit tool capabilities. Read the processing notes before using a tool.

Tool capabilities

{
  "id": "mtu-overhead-calculator",
  "category": "developer-tools",
  "built": true,
  "requirements": "Process up to 500000 input characters and 20000 records locally. Reports export completely up to 40 million characters and 500000 CSV records. Analysis is local with a 10-second timeout. Preview tables show the first 200 rows; your data is not uploaded.",
  "implementation": {
    "fields": [],
    "presentation": "metrics",
    "inputMaxLength": 500000,
    "inputErrorCode": "NETWORK_DIAGNOSTICS_INPUT",
    "note": "Paste JSON with mtu and layers [{name, bytes}]. Usable payload is MTU minus the supplied encapsulation bytes; defaults, padding and path discovery are not inferred. Process up to 500000 input characters and 20000 records locally. Reports and source text export completely, capped at 40 million characters and 500000 CSV records. Previews show the first 200 rows; analysis stops after 10 seconds. No data is uploaded.",
    "example": {
      "input": "{\n  \"mtu\": 1500,\n  \"layers\": [\n    {\n      \"name\": \"IPv4\",\n      \"bytes\": 20\n    },\n    {\n      \"name\": \"TCP\",\n      \"bytes\": 20\n    }\n  ]\n}",
      "options": {}
    },
    "experience": {
      "automatic": false,
      "single": false,
      "inputMaxLength": 500000,
      "inputMode": "text",
      "label": "Your text",
      "placeholder": "Type or paste your input…",
      "help": "Up to 500,000 characters. Review the settings before running.",
      "helpParts": [
        "Up to 500,000 characters.",
        "Review the settings before running."
      ],
      "action": null
    },
    "mode": "explicit",
    "interactive": false
  },
  "execution": "Browser interface",
  "api": null,
  "browser_agent": {
    "supported": true,
    "name": "run_current_tool",
    "discovery": "WebMCP on the human page in a supporting browser",
    "verification": "See audit/API-AUDIT.md; availability is not verification"
  }
}

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