The following sections describe known issues in firmware releases and possible workarounds.
Internal Ref. | Issue |
3261861 | Description: Connecting an HDR device to an NDR device with Optical cables longer than 30m causes degradation in the bandwidth. |
Keywords: HDR-to-NDR | |
Workaround: N/A | |
Discovered in Version: 31.2010.4102 | |
2974424 | Description: Currently, on cables that perform polarity inversion there is no link up. |
Workaround: N/A | |
Keywords: Cables, Polarity Inversion | |
Discovered in Version: 31.2010.3118 | |
2922333 | Description: In some cases, MMS4X00-NL1.2 may have low BER. |
Workaround: N/A | |
Keywords: Signal Integrity | |
Discovered in Version: 31.2010.2110 | |
2838195 | Description: Using NDR speed with Optical Transceivers causes bandwidth to be 350Gb/s instead of 400Gb/s in small packets. |
Workaround: N/A | |
Keywords: Optical Transceivers | |
Discovered in Version: 31.2010.1310 | |
2834238 | Description: When using Optical Transceiver, toggling a port in a cage may toggle the adjacent port in the cage. |
Workaround: N/A | |
Keywords: Optical Transceivers, Port Toggle | |
Discovered in Version: 31.2010.1310 | |
955641 | Description: VL_HIGH_LIMIT is not affecting the VL arbiter as expected. |
Workaround: Arbitration table should be set using only the low priority VL arbitration table. | |
Keywords: VL Arbitration | |
Discovered in Version: 31.2010.1310 | |
1249608 | Description: Configuring weight "0" for VL, results in unexpected behavior. |
Workaround: Arbitration table should be configured with weights other than "0". | |
Keywords: VL Arbitration | |
Discovered in Version: 31.2010.1310 | |
2057793 | Description: Congestion profiles in VS-MAD PortProfileSetting support only fixed mode. Percentage mode is not supported. |
Workaround: N/A | |
Keywords: InfiniBand Congestion Control | |
Discovered in Version: 31.2010.1310 | |
Unsupported Features | Features that are not yet supported in the NVIDIA Quantum-2 systems:
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