Display Filter Reference: DOCSIS Upstream Channel Descriptor

Protocol field name: docsis_ucd

Versions: 1.0.0 to 2.6.3

Back to Display Filter Reference

Field name Description Type Versions
docsis_ucd.burst.diffenc Differential Encoding Unsigned integer, 1 byte 1.0.0 to 2.2.17
docsis_ucd.burst.fec FEC (T) Unsigned integer, 1 byte 1.0.0 to 2.2.17
docsis_ucd.burst.fec_codeword FEC Codeword Info bytes (k) Unsigned integer, 1 byte 1.0.0 to 2.2.17
docsis_ucd.burst.guardtime Guard Time Size (Symbol Times) Unsigned integer, 1 byte 1.0.0 to 2.2.17
docsis_ucd.burst.last_cw_len Last Codeword Length Unsigned integer, 1 byte 1.0.0 to 2.2.17
docsis_ucd.burst.maxburst Max Burst Size (Minislots) Unsigned integer, 1 byte 1.0.0 to 2.2.17
docsis_ucd.burst.modtype Modulation Type Unsigned integer, 1 byte 1.0.0 to 2.2.17
docsis_ucd.burst.preamble_len Preamble Length (Bits) Unsigned integer, 2 bytes 1.0.0 to 2.2.17
docsis_ucd.burst.preamble_off Preamble Offset (Bits) Unsigned integer, 2 bytes 1.0.0 to 2.2.17
docsis_ucd.burst.preambletype Preamble Type Unsigned integer, 1 byte 1.0.0 to 2.2.17
docsis_ucd.burst.rsintblock RS Interleaver Block Size Unsigned integer, 1 byte 1.0.0 to 2.2.17
docsis_ucd.burst.rsintdepth RS Interleaver Depth Unsigned integer, 1 byte 1.0.0 to 2.2.17
docsis_ucd.burst.scdmacodespersubframe 16 SCDMA Codes per Subframe Unsigned integer, 1 byte 1.0.0 to 1.12.13
docsis_ucd.burst.scdmaframerintstepsize 17 SDMA Framer Int Step Size Unsigned integer, 1 byte 1.0.0 to 1.12.13
docsis_ucd.burst.scdmascrambleronoff 15 SCDMA Scrambler On/Off Unsigned integer, 1 byte 1.0.0 to 1.12.13
docsis_ucd.burst.scrambler_seed Scrambler Seed Unsigned integer, 2 bytes 1.0.0 to 2.2.17
docsis_ucd.burst.scrambleronoff Scrambler On/Off Unsigned integer, 1 byte 1.0.0 to 2.2.17
docsis_ucd.burst.tcmenabled 18 TCM Enable Unsigned integer, 1 byte 1.0.0 to 1.12.13
docsis_ucd.burst.tlvlen Length Unsigned integer, 1 byte 2.2.0 to 2.2.17
docsis_ucd.burst.tlvtype Type Unsigned integer, 1 byte 2.2.0 to 2.2.17
docsis_ucd.classidcm Channel Class ID (CM) Unsigned integer, 4 bytes 2.0.0 to 2.2.17
docsis_ucd.classidemta Channel Class ID (eMTA or EDVA) Unsigned integer, 4 bytes 2.0.0 to 2.2.17
docsis_ucd.classiderouter Channel Class ID (eRouter) Unsigned integer, 4 bytes 2.0.0 to 2.2.17
docsis_ucd.classidestb Channel Class ID (DSG/eSTB) Unsigned integer, 4 bytes 2.0.0 to 2.2.17
docsis_ucd.classidext CM Ranging Class ID Extension Unsigned integer, 4 bytes 2.0.0 to 2.2.17
docsis_ucd.classidrsvd Reserved [0x000000] Unsigned integer, 4 bytes 2.0.0 to 2.2.17
docsis_ucd.confcngcnt Config Change Count Unsigned integer, 1 byte 1.0.0 to 2.2.17
docsis_ucd.downchid Downstream Channel ID Unsigned integer, 1 byte 1.0.0 to 2.2.17
docsis_ucd.extpreamble Extended Preamble Pattern Sequence of bytes 2.0.0 to 2.2.17
docsis_ucd.freq Frequency (Hz) Unsigned integer, 4 bytes 1.0.0 to 2.2.17
docsis_ucd.iuc Interval Usage Code Unsigned integer, 1 byte 1.0.0 to 2.2.17
docsis_ucd.length Length Unsigned integer, 1 byte 1.0.0 to 2.2.17
docsis_ucd.maintpower Maintain Power Spectral Density Unsigned integer, 1 byte 2.0.0 to 2.2.17
docsis_ucd.mslotsize Mini Slot Size (6.25us TimeTicks) Unsigned integer, 1 byte 1.0.0 to 2.2.17
docsis_ucd.preamble Preamble Pattern Sequence of bytes 1.0.0 to 2.2.17
docsis_ucd.rangingreq Ranging Required Unsigned integer, 1 byte 2.0.0 to 2.2.17
docsis_ucd.rnghoffcm Ranging Hold-Off (CM) Unsigned integer, 4 bytes 2.0.0 to 2.2.17
docsis_ucd.rnghoffemta Ranging Hold-Off (eMTA or EDVA) Unsigned integer, 4 bytes 2.0.0 to 2.2.17
docsis_ucd.rnghofferouter Ranging Hold-Off (eRouter) Unsigned integer, 4 bytes 2.0.0 to 2.2.17
docsis_ucd.rnghoffestb Ranging Hold-Off (DSG/eSTB) Unsigned integer, 4 bytes 2.0.0 to 2.2.17
docsis_ucd.rnghoffrsvd Reserved [0x000000] Unsigned integer, 4 bytes 2.0.0 to 2.2.17
docsis_ucd.rngidext CM Ranging Class ID Extension Unsigned integer, 4 bytes 2.0.0 to 2.2.17
docsis_ucd.scdma S-CDMA Mode Enabled Unsigned integer, 1 byte 2.0.0 to 2.2.17
docsis_ucd.symrate Symbol Rate (ksym/sec) Unsigned integer, 1 byte 1.0.0 to 2.2.17
docsis_ucd.tlvlen.bad Expert Info Label 2.0.0 to 2.0.16
docsis_ucd.tlvlenbad Expert Info Label 2.2.0 to 2.2.17
docsis_ucd.type Type Unsigned integer, 1 byte 1.0.0 to 2.2.17
docsis_ucd.upchid Upstream Channel ID Unsigned integer, 1 byte 1.0.0 to 2.2.17
Go Beyond with Riverbed Technology

Riverbed is Wireshark's primary sponsor and provides our funding. They also make great products that fully integrate with Wireshark.

I have a lot of traffic...

ANSWER: SteelCentral™ Packet Analyzer PE
  • • Visually rich, powerful LAN analyzer
  • • Quickly access very large pcap files
  • • Professional, customizable reports
  • • Advanced triggers and alerts
Learn More

Buy Now

No, really, I have a LOT of traffic…

ANSWER: SteelCentral™ AppResponse 11
  • • Full stack analysis – from packets to pages
  • • Rich performance metrics & pre-defined insights for fast problem identification/resolution
  • • Modular, flexible solution for deeply-analyzing network & application performance
Learn More