NVIDIA Quantum Firmware v27.2008.1300 Release Notes
NVIDIA Quantum Firmware v27.2008.1300 Release Notes

Bug Fixes History

Internal Ref.

Issues

2169355

Description: TCA port (ports 41/81) counter returns non-zero value since the TCA counters were not supported.

Keywords: SHARP, TCA, Port Counters

Discovered in Version: 27.2007.0618

Fixed in Release: 27.2008.0232

2136877

Description: Port Counters with "all_ports" attribute returns wrong values since the TCA counters were not supported.

Keywords: TCA, Port Counters

Discovered in Version: 27.2007.0618

Fixed in Release: 27.2008.0232

2133393

Description: On rare occasions when link is flapping or toggle by the user, the switch may hang.

Keywords: Link Flapping

Discovered in Version: 27.2007.0618

Fixed in Release: 27.2008.0232

2122186

Description: Traffic loss may be experienced during a spine failover, when two SHARP (SAT) flows are enabled.

Keywords: InfiniBand; SHARP (SAT)

Discovered in Version: 27.2007.0618

Fixed in Release: 27.2008.0232

2063786

Description: Running 2 flows in parallel is currently not functional in SHARP (SAT).

Keywords: SHARP (SAT), 2 flows

Discovered in Version: 27.2000.3276

Fixed in Release: 27.2007.0618

1972573

Description: Reading the Serial Number by the MSPS register is not functional on the new Delta PSU model.

Keywords: Delta PSU model, MSPS register

Discovered in Version: 27.2000.2708

Fixed in Release: 27.2007.0618

1970878

Description: When using Mellanox AOC cables longer than 50m use one VL to achieve full wire speed.

Keywords: Cables

Fixed in Release: 27.2007.0618

2022524

Description: As the switch does not send auto-negotiation indication, after resetting/power cycling a ConnectX-6 HCA, some HCAs get stuck in "polling" state.

Keywords: Auto-negotiation, HCA, switch

Discovered in Version: 27.2000.2708

Fixed in Release: 27.2007.0300

1996051

Description: After performing a software reset on the switch while using an Active Copper Cable or Optics Cable, the link gets high BER and is not available for traffic forwarding.

Keywords: Cables, BER

Discovered in Version: 27.2000.2708

Fixed in Release: 27.2007.0300

2036930

Description: Degradation in throughput might be experienced when using HDR100 cables with a length of 30m and above.

Keywords: Cables, Bandwidth

Discovered in Version: 27.2000.2708

Fixed in Release: 27.2000.3276

1946287

Description: Fixed an issue that resulted in SHARP jobs getting stuck after stopping a job during SAT operation.

Keywords: SHARP

Discovered in Version: 27.2000.2306

Fixed in Release: 27.2000.2626

1778566

Description: Fixed an issue that caused the Rx buffers allocation after running OpenSM to be based on the default VLCap configuration instead of the Operational Vl configuration.

Keywords: Rx buffers allocation, OpenSM

Discovered in Version: 27.2000.2306

Fixed in Release: 27.2000.2626

1930686

Description: Fixed an issue that caused a multicast packet to be forwarded to a wrong port when the switch was configured to use the Split mode.

Keywords: Switch multicast forwarding

Discovered in Version: 27.2000.2182

Fixed in Release: 27.2000.2626

1761271

Description: CWDM4 AOM cable is currently not supported on Quantum switch systems.

Keywords: Modules/Cables

Discovered in Version: 27.2000.1400

Fixed in Release: 27.2000.2626

1713747

Description: When using splitter HDR optical cables, toggling the upper port causes the lower port to be toggled as well.

Keywords: Cables, port toggling

Discovered in Version: 27.2000.2046

Fixed in Release: 27.2000.2626

1834740

Description: Fixed an issue that resulted in high BER when using optical module with module firmware older than 37.50.316.

Keywords: Optical cables, BER, cables firmware

Discovered in Version: 27.2000.2182

Fixed in Release: 27.2000.2306

1899441

Description: Fixed an issue that caused the packets to be transmitted from a wrong output port due to a wrong configuration of the packet classification decision in the switch forwarding database cache key, that caused both AR eligible packets and AR ineligible packets to hit the same cache entry.

Keywords: Switch forwarding, Adaptive Routing

Discovered in Version: 27.2000.2046

Fixed in Release: 27.2000.2182

1885460

Description: On rare occasions, and under high SHARP load, switch SHARP operation might get stuck.

Keywords: SHARP

Discovered in Version: 27.2000.2046

Fixed in Release: 27.2000.2182

1859715

Description: The bandwidth on MFS1S00-H050E cables is 99G/s and on MFS1S00-H100E cables is 67Gb/s when connecting at HDR speed to an HDR switch.

Keywords: Cables

Discovered in Version: 27.2000.1886

Fixed in Release: 27.2000.2046

1797452

Description: A port may hang while Link-Maintenance runs on it and the second port’s link is toggled.

Keywords: Link-Maintenance, port toggling

Discovered in Version: 27.2000.1600

Fixed in Release: 27.2000.1886

1698990

Description: HDR link up time when using optical cables may take 6 minutes or more (up to 20 minutes).

Keywords: HDR, optical cables, link up times

Discovered in Version: 27.2000.1100

Fixed in Release: 27.2000.1886

1718734/

1723236/

1718645/

1710631

Description: On rare occasions, HDR link may not raise properly when using optical cables.

Keywords: HDR link

Discovered in Version: 27.2000.1012

Fixed in Release: 27.2000.1600

1774870

Description: Link flapping and packet loss during High/Low temperature changes.

Keywords: Link

Discovered in Version: 27.2000.1400

Fixed in Release: 27.2000.1600

1778837

Description: When using a copper splitter cable up to 2m length in HDR100 mode, traffic may drop.

Keywords: Cable, HDR100

Discovered in Version: 27.2000.1400

Fixed in Release: 27.2000.1600

1534459

Description: When working with 8 VLs, TP does not function due to buffers’ configuration.

Keywords: VLs, latency, performance

Discovered in Version: 27.2000.1100

Fixed in Release: 27.2000.1400

1605587

Description: Fixed an issue that cause the green port LED to blink in the same frequency regardless of the link speed rate set.

Keywords: Port LED

Discovered in Version: 27.1910.0618

Fixed in Release: 27.2000.1142

1598550

Description: Fixed an issue that prevented the port from being split when the request (command) was sent from the NV config tool.

Keywords: Split Port

Discovered in Version: 27.1910.0618

Fixed in Release: 27.1910.0620

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