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Display Filter Reference: DOCSIS Upstream Channel Descriptor
Protocol field name: docsis_ucd
Versions: 1.0.0 to 1.6.5
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| Field name | Type | Description | Versions |
|---|---|---|---|
| docsis_ucd.burst.diffenc | Unsigned integer, 1 byte | 2 Differential Encoding | 1.0.0 to 1.6.5 |
| docsis_ucd.burst.fec | Unsigned integer, 1 byte | 5 FEC (T) | 1.0.0 to 1.6.5 |
| docsis_ucd.burst.fec_codeword | Unsigned integer, 1 byte | 6 FEC Codeword Info bytes (k) | 1.0.0 to 1.6.5 |
| docsis_ucd.burst.guardtime | Unsigned integer, 1 byte | 9 Guard Time Size (Symbol Times) | 1.0.0 to 1.6.5 |
| docsis_ucd.burst.last_cw_len | Unsigned integer, 1 byte | 10 Last Codeword Length | 1.0.0 to 1.6.5 |
| docsis_ucd.burst.maxburst | Unsigned integer, 1 byte | 8 Max Burst Size (Minislots) | 1.0.0 to 1.6.5 |
| docsis_ucd.burst.modtype | Unsigned integer, 1 byte | 1 Modulation Type | 1.0.0 to 1.6.5 |
| docsis_ucd.burst.preamble_len | Unsigned integer, 2 bytes | 3 Preamble Length (Bits) | 1.0.0 to 1.6.5 |
| docsis_ucd.burst.preamble_off | Unsigned integer, 2 bytes | 4 Preamble Offset (Bits) | 1.0.0 to 1.6.5 |
| docsis_ucd.burst.preambletype | Unsigned integer, 1 byte | 14 Preamble Type | 1.0.0 to 1.6.5 |
| docsis_ucd.burst.rsintblock | Unsigned integer, 1 byte | 13 RS Interleaver Block Size | 1.0.0 to 1.6.5 |
| docsis_ucd.burst.rsintdepth | Unsigned integer, 1 byte | 12 RS Interleaver Depth | 1.0.0 to 1.6.5 |
| docsis_ucd.burst.scdmacodespersubframe | Unsigned integer, 1 byte | 16 SCDMA Codes per Subframe | 1.0.0 to 1.6.5 |
| docsis_ucd.burst.scdmaframerintstepsize | Unsigned integer, 1 byte | 17 SDMA Framer Int Step Size | 1.0.0 to 1.6.5 |
| docsis_ucd.burst.scdmascrambleronoff | Unsigned integer, 1 byte | 15 SCDMA Scrambler On/Off | 1.0.0 to 1.6.5 |
| docsis_ucd.burst.scrambler_seed | Unsigned integer, 2 bytes | 7 Scrambler Seed | 1.0.0 to 1.6.5 |
| docsis_ucd.burst.scrambleronoff | Unsigned integer, 1 byte | 11 Scrambler On/Off | 1.0.0 to 1.6.5 |
| docsis_ucd.burst.tcmenabled | Unsigned integer, 1 byte | 18 TCM Enable | 1.0.0 to 1.6.5 |
| docsis_ucd.confcngcnt | Unsigned integer, 1 byte | Config Change Count | 1.0.0 to 1.6.5 |
| docsis_ucd.downchid | Unsigned integer, 1 byte | Downstream Channel ID | 1.0.0 to 1.6.5 |
| docsis_ucd.freq | Unsigned integer, 4 bytes | Frequency (Hz) | 1.0.0 to 1.6.5 |
| docsis_ucd.iuc | Unsigned integer, 1 byte | Interval Usage Code | 1.0.0 to 1.6.5 |
| docsis_ucd.length | Unsigned integer, 1 byte | TLV Length | 1.0.0 to 1.6.5 |
| docsis_ucd.mslotsize | Unsigned integer, 1 byte | Mini Slot Size (6.25us TimeTicks) | 1.0.0 to 1.6.5 |
| docsis_ucd.preamble | Sequence of bytes | Preamble Pattern | 1.0.0 to 1.6.5 |
| docsis_ucd.symrate | Unsigned integer, 1 byte | Symbol Rate (ksym/sec) | 1.0.0 to 1.6.5 |
| docsis_ucd.type | Unsigned integer, 1 byte | TLV Type | 1.0.0 to 1.6.5 |
| docsis_ucd.upchid | Unsigned integer, 1 byte | Upstream Channel ID | 1.0.0 to 1.6.5 |