Known Issues History
The following sections describe known issues in firmware releases and possible workarounds.
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Internal Ref. |
Issue |
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2057793 |
Description: Congestion profiles in VS-MAD PortProfileSetting support only fixed mode. Percentage mode is not supported. |
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Workaround: N/A |
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Keywords: DCQCN Congestion Control |
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Discovered in Version: 27.2007.0300 |
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2063786 |
Description: Running 2 flows in parallel is currently not functional in SHARP (SAT). |
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Workaround: N/A |
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Keywords: SHARP (SAT), 2 flows |
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Discovered in Version: 27.2000.3276 |
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1959529 |
Description: Occasionally (up to 15% of connections), the link will go down when using ACC cables P/N: MCA1J00-H003E, MCA1J00-H004E and when connecting a Quantum switch vs a Quantum switch. |
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Workaround: N/A |
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Keywords: Cables |
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Discovered in Version: 27.2000.3276 |
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1972573 |
Description: Reading the Serial Number by the MSPS register is not functional on the new Delta PSU model. |
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Workaround: N/A |
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Keywords: Delta PSU model, MSPS register |
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Discovered in Version: 27.2000.2708 |
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1848091 |
Description: Although the effective BER (after FEC) is expected to meet our design targets (e.g. 10e-14 or lower), occasionally it may be higher. |
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Workaround: N/A |
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Keywords: Cables |
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Discovered in Version: 27.2000.2708 |
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1856717 |
Description: High BER may occur when connecting cables of type 0.5/1m DAC to an HDR speed. |
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Workaround: N/A |
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Keywords: Cables |
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Discovered in Version: 27.2000.1886 |
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1563590 |
Description: LR4 modules are currently not supported. |
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Workaround: N/A |
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Keywords: Modules/Cables |
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Discovered in Version: 27.2000.1012 |
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|
- |
Description: The supported length of HDR copper cables is currently up to 2M. |
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Workaround: N/A |
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Keywords: HDR cables |
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Description: Although the effective BER (after FEC) is expected to meet our design targets (e.g. 10e-14 or lower), occasionally it may be higher. |
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Workaround: N/A |
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Keywords: Cables |
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1796936 |
Description: HDR optical cables and Split cables support only HDR speed. |
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Workaround: N/A |
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Keywords: Link Speed, cables, Break-Out cables |
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- |
Description: The following features are currently not supported on Mellanox Quantum™ based systems:
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Workaround: N/A |
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Keywords: Mellanox Quantum |
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1970878 |
Description: When using Mellanox AOC cables longer than 50m use one VL to achieve full wire speed. |
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Workaround: N/A |
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Keywords: Cables |
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955641 |
Description: VL_HIGH_LIMIT is not affecting the VL arbiter as expected. |
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Workaround: Arbitration table should be set using only the low priority VL arbitration table. |
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Keywords: VL Arbitration |
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1249608 |
Description: Configuring weight "0" for VL, results in unexpected behavior. |
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Workaround: Arbitration table should be configured with weights other than "0". |
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Keywords: VL Arbitration |
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- |
Description: Module info page in Diagnostics Data VS-MAD is not supported |
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Workaround: N/A |
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Keywords: Diagnostics Data VS-MAD |