Known Issues
The following sections describe known issues in this firmware release and possible workarounds.
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Internal Ref. |
Issue |
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1886809 |
Description: FDR speed in Quantum-base switches is supported only when using optical cables 10m\15m\30m and only on ports: #7, #9 - #30. |
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Workaround: N/A |
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Keywords: Cables, ports, speed |
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Discovered in Version: 27.2000.2046 |
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1713747 |
Description: When using splitter HDR optical cables, toggling the upper port causes the lower port to be toggled as well. |
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Workaround: N/A |
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Keywords: Cables, port toggling |
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Discovered in Version: 27.2000.2046 |
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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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1761271 |
Description: CWDM4 AOM cable is currently not supported on Quantum switch systems. |
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Workaround: N/A |
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Keywords: Modules/Cables |
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Discovered in Version: 27.2000.1400 |
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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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- |
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 |