Networking ConnectX-9 Firmware Release Notes
Networking ConnectX-9 Firmware Release Notes
Breadcrumbs

Known Issues

ConnectX-9 has the same feature set and limitations as the ConnectX-8 SuperNIC. For the list of ConnectX-8 known issues, refer to: https://docs.nvidia.com/networking/software/adapter-firmware/index.html#connectx-8.

The limitations listed below apply to ConnectX-9 only.

Internal Ref.

Issue

4835832

Description: In rare cases, certain module types may experience link-up failures.

Workaround: Configure the requested speed using the following commands:

mlxconfig -d <device> set PHY_RATE_MASK_OVERRIDE_P<port>=1
mlxfwreset -d <device> r -y --no_mst
mlxconfig -d <device> set PHY_RATE_MASK_P<port>=<PTYS.speed_mask> (speed mask is defined in PRM)
mlxfwreset -d <device> r -y --no_mst

Keywords: Cables

Detected in version:

82.48.1000

4809493 / 4804815 / 4884845

Description: Running lane margin tests may disrupt traffic, cause connection drops, or degrade performance.

Workaround: 

  1. Disable the drivers before starting the Lane Margin test.

  2. Set an error threshold of 2. 

  3. If the connection drops or performance degrades, re-run the process.

Keywords: Lane Margin

Detected in version:

82.48.1000

4806964 / 48293338 / 4843305 / 4857738

Description: When bringing up 800G_8x on ConnectX-9 with Spectrum-4 switch systems, switch firmware version xx.201.3916-020 or later is required; earlier versions may fail to link up at 800G_8x.

Workaround: N/A

Keywords: Linkup, cables, Spectrum-4, 800G_8x

Detected in version:

82.48.1000


Description: 200GbE per lane protocol is currently not supported.

Workaround: N/A

Keywords: 200GbE per lane

Detected in version:

82.48.1000

Last updated: