5 Messages
CODA56 OFDMA Upstream Overview
I have been experiencing 1% packet loss while gaming on my network. A technician checked my network and indicated that all parameters were within acceptable limits. However, I am not convinced that the technician checked all parameters thoroughly. I am also concerned that upstream channel index 1 is disabled, and I do not understand why this would be the case. Can someone please confirm that the noise ratio is set appropriately?
Status
This menu shows the status of the device
DOCSIS WAN
This menu displays both upstream and downstream signal parameters
| Downstream Overview | ||||||||
|---|---|---|---|---|---|---|---|---|
| Port ID | Frequency (Hz) | Modulation | Signal strength (dBmV) | Signal noise ratio (dB) | Octets | Correcteds | Uncorrectables | Channel ID |
| 1 | 417000000 | 256QAM | 6.600 | 40.946 | 1 * 2e32 + 1095183389 | 0 | 0 | 4 |
| 2 | 465000000 | 256QAM | 6.300 | 43.377 | 1 * 2e32 + 1095183507 | 0 | 0 | 12 |
| 3 | 513000000 | 256QAM | 6.000 | 40.366 | 1 * 2e32 + 1095184084 | 0 | 0 | 20 |
| 4 | 561000000 | 256QAM | 5.100 | 40.946 | 1 * 2e32 + 1095184205 | 0 | 0 | 28 |
| 5 | 399000000 | 256QAM | 6.600 | 43.377 | 1 * 2e32 + 1095184305 | 0 | 0 | 1 |
| 6 | 405000000 | 256QAM | 6.400 | 43.377 | 1 * 2e32 + 1095184413 | 0 | 0 | 2 |
| 7 | 411000000 | 256QAM | 6.500 | 40.946 | 1 * 2e32 + 1095184696 | 0 | 0 | 3 |
| 8 | 423000000 | 256QAM | 6.300 | 43.377 | 1 * 2e32 + 1095184821 | 0 | 0 | 5 |
| 9 | 429000000 | 256QAM | 6.100 | 40.946 | 1 * 2e32 + 1095184952 | 0 | 0 | 6 |
| 10 | 435000000 | 256QAM | 6.100 | 40.946 | 1 * 2e32 + 1095185058 | 0 | 0 | 7 |
| 11 | 441000000 | 256QAM | 6.300 | 43.377 | 1 * 2e32 + 1095185169 | 0 | 0 | 8 |
| 12 | 447000000 | 256QAM | 6.200 | 40.946 | 1 * 2e32 + 1095185270 | 0 | 0 | 9 |
| 13 | 453000000 | 256QAM | 6.000 | 40.946 | 1 * 2e32 + 1095185404 | 0 | 0 | 10 |
| 14 | 459000000 | 256QAM | 6.100 | 43.377 | 1 * 2e32 + 1095185507 | 0 | 0 | 11 |
| 15 | 471000000 | 256QAM | 6.000 | 40.946 | 1 * 2e32 + 1095185617 | 0 | 0 | 13 |
| 16 | 477000000 | 256QAM | 5.800 | 40.946 | 1 * 2e32 + 1095185744 | 0 | 0 | 14 |
| 17 | 483000000 | 256QAM | 6.100 | 40.366 | 1 * 2e32 + 1095185860 | 0 | 0 | 15 |
| 18 | 489000000 | 256QAM | 6.200 | 40.946 | 1 * 2e32 + 1095185963 | 0 | 0 | 16 |
| 19 | 495000000 | 256QAM | 6.100 | 40.366 | 1 * 2e32 + 1095186078 | 0 | 0 | 17 |
| 20 | 501000000 | 256QAM | 5.600 | 40.366 | 1 * 2e32 + 1095186189 | 0 | 0 | 18 |
| 21 | 507000000 | 256QAM | 5.600 | 40.366 | 1 * 2e32 + 1095186309 | 0 | 0 | 19 |
| 22 | 519000000 | 256QAM | 5.700 | 40.946 | 1 * 2e32 + 1095186423 | 0 | 0 | 21 |
| 23 | 525000000 | 256QAM | 5.100 | 40.946 | 1 * 2e32 + 1095186535 | 0 | 0 | 22 |
| 24 | 531000000 | 256QAM | 5.200 | 40.366 | 1 * 2e32 + 1095186635 | 0 | 0 | 23 |
| 25 | 537000000 | 256QAM | 5.400 | 40.946 | 1 * 2e32 + 1095186759 | 0 | 0 | 24 |
| 26 | 543000000 | 256QAM | 4.900 | 40.366 | 1 * 2e32 + 1095186868 | 0 | 0 | 25 |
| 27 | 549000000 | 256QAM | 4.400 | 40.946 | 1 * 2e32 + 1095186984 | 0 | 0 | 26 |
| 28 | 555000000 | 256QAM | 4.600 | 40.946 | 1 * 2e32 + 1095187087 | 0 | 0 | 27 |
| 29 | 567000000 | 256QAM | 4.800 | 40.946 | 1 * 2e32 + 1095187414 | 0 | 0 | 29 |
| 30 | 573000000 | 256QAM | 4.200 | 40.946 | 1 * 2e32 + 1095187530 | 0 | 0 | 30 |
| 31 | 579000000 | 256QAM | 4.600 | 40.366 | 1 * 2e32 + 1095187654 | 0 | 0 | 31 |
| 32 | 585000000 | 256QAM | 4.900 | 40.946 | 1 * 2e32 + 1095187769 | 0 | 0 | 32 |
| Reset FEC Counters | ||||||||
| OFDM Downstream Overview | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Receiver | FFT type | Subcarr 0 Frequency(Hz) | PLC locked | NCP locked | MDC1 locked | PLC power(dBmv) | SNR(dB) | Octets | Correcteds | Uncorrectables |
| 0 | 4K | 632600000 | YES | YES | YES | 4.000000 | 42 | 1868274782 | 1429627181 | 2 |
| 1 | 4K | 803600000 | YES | YES | YES | 0.400002 | 40 | 3733117501 | 3081597837 | 2 |
| Upstream Overview | ||||||
|---|---|---|---|---|---|---|
| Port ID | Frequency (Hz) | BandWidth (Hz) | Modulation Type | DOCSIS Mode | Signal Strength (dBmV) | Channel ID |
| 1 | 22800000 | 6400000 | 64QAM | ATDMA | 37.271 | 18 |
| 2 | 35600000 | 6400000 | 64QAM | ATDMA | 38.521 | 20 |
| 3 | 29200000 | 6400000 | 64QAM | ATDMA | 37.771 | 19 |
| 4 | 16400000 | 6400000 | 64QAM | ATDMA | 37.271 | 17 |
| OFDMA Upstream Overview | ||||||||
|---|---|---|---|---|---|---|---|---|
| Channel Index | State | Subcarr 0 Frequency(Hz) | lin Digital Att | Digital Att | BW (sc's*fft) | Report Power | Report Power1_6 | FFT Size |
| 0 | OPERATE | 36200000 | 0.1760 | 5.5268 | 44.4000 | 48.6826 | 34.2500 | 4K |
| 1 | DISABLED | 0 | 0.0000 | 0.0000 | 0.0000 | 0.0000 | 0.0000 | 2K |
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XfinityGabriel
Official Employee
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1.9K Messages
13 days ago
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EG
Expert
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107.5K Messages
13 days ago
FWIW here. Upstream channel OFDMA is a fairly new modulation scheme. Many, if not most market areas are only offering one channel so far. It's normal. And the downstream channel SNR values are all good / within specs.
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