Description
Require flowLabel in 0-1048575 and format it as exactly five hexadecimal digits.
Packet headers encode several meanings in fixed-width fields. Bit positions, network byte order, and reserved values must be distinguished from validation of an entire message.
Require flowLabel in 0-1048575 and format it as exactly five hexadecimal digits.
When to use this tool
Use Network: IPv6 Flow Label Fixed Width when you need to decode or encode one explicit packet field.
How to use the tool and how it works
- Enter flowLabel. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read result. Expand result to inspect the returned fields.
Require flowLabel in 0-1048575 and format it as exactly five hexadecimal digits.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| flowLabel | Flow Label | Required. Safe integer. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| result | Result | Required. Object. |
| result.hexadecimal | Hexadecimal | Calculated result member: string. |
json
{
"input": {
"flowLabel": 1
},
"output": {
"result": {
"hexadecimal": "00001"
}
}
}Limitations and assumptions
- This is field formatting, not flow assignment, uniqueness checking, or a complete IPv6 header.
- Outputs are nested inside result. Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
- Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.
Alternative or Complementary methods
Inspect the complete captured header and apply the relevant protocol's structural and state rules.
References
Similar or alternative tools
- Network: Arp Opcode Single Field Label
Label opcodes 1-4 as ARP-request, ARP-reply, RARP-request, and RARP-reply.
- Network: Ethernet Ethertype Hex Label
Format field as 0x plus four hexadecimal digits.