ConnectX-7 has the same feature set and limitations as ConnectX-6 adapter card. For the list of ConnectX-6 Known Issues, please go to https://docs.nvidia.com/networking/category/connectx6fw.
The below are limitations related to ConnectX-7 only.
| Internal Ref. | Issue |
|---|---|
3110297 | Description: When ConnectX-7 adapter card is configured to use the Auto-Negotiation mode, 400G_8x linkup cannot be raised. |
Workaround: Configure the adapter card to use Force mode. | |
| Keywords: 400G_8x, linkup | |
Discovered in Version: 28.34.4000 | |
3033910 | Description: BAR misses caused by a memory write/read actions are not reported in the AER and the device status. |
Workaround: N/A | |
| Keywords: BAR miss, AER | |
Discovered in Version: 28.34.4000 | |
3140645 | Description: 3rd party servers may hang after warm reboot due to the PCIe switch. |
Workaround: N/A | |
| Keywords: PCIe, 3rd party servers | |
Discovered in Version: 28.34.4000 | |
3147207 | Description: The SPDM challenge command returns the hash of all the measurements without their headers. |
Workaround: N/A | |
| Keywords: SPDM | |
Discovered in Version: 28.34.4000 | |
3147219 | Description: SPDM Get Measurements might return an invalid signature while executed without the included measurements (request param2 = 0). |
Workaround: N/A | |
| Keywords: SPDM | |
Discovered in Version: 28.34.4000 | |
3200779 | Description: Changing dynamic PCIe link width is not supported. |
Workaround: N/A | |
| Keywords: PCIe | |
Discovered in Version: 28.34.1002 | |
2169950 | Description: When decapsulation on a packet occurs, the FCS indication is not calculated correctly. |
Workaround: N/A | |
| Keywords: FCS | |
Discovered in Version: 28.34.1002 | |
3174038 | Description: SPDM requests received while CPLD burn flow is in progress may be answered with incorrect responses. |
Workaround: Avoid activation of the two flows in tandem. | |
| Keywords: SPDM | |
Discovered in Version: 28.34.1002 | |
3141072 | Description: The "max_shaper_rate" configuration query via QEEC mlxreg returns a value translated to hardware granularity. |
Workaround: N/A | |
| Keywords: RX Rate-Limiter, Multi-host | |
Discovered in Version: 28.34.1002 | |
3106146 | Description: Live migration of MPV affiliated function pair is not supported when port numbers are changed. Each function should stay on the same port number as before migration. |
Workaround: N/A | |
| Keywords: MPV live migration | |
Discovered in Version: 28.34.1002 | |
3077026 | Description: When connecting a ConnectX-7 adapter card to ConnectX-7 adapter card and one side is configured to RM Loopback, and the port is toggled, link flap maybe experienced. |
Workaround: N/A | |
| Keywords: Link flap | |
Discovered in Version: 28.34.1002 | |
3077026 | Description: When connecting with MMS4X00-NL400 transceiver at 200Gb/s, instability may be experienced upon link up. |
Workaround: Wait approximately 30 seconds for stabilization. | |
| Keywords: Transceiver, Link Up | |
Discovered in Version: 28.34.1002 | |
2870970 | Description: GTP encapsulation (flex parser profile 3) is limited to the NIC domain. Encapsulating in the FDB domain will render a 0-size length in GTP header. |
Workaround: N/A | |
| Keywords: GTP encapsulation | |
Discovered in Version: 28.34.1002 | |
| 3081264 | Description: 10G/40G speeds are not supported on MFS1S00-XXXX modules (200G optics) in ConnectX-7 adapter cards. |
Workaround: N/A | |
| Keywords: Optical cables | |
Discovered in Version: 28.33.4030 | |
| 3070590 | Description: PLL modules are not supported in ConnectX-7 ethernet adapter cards. |
Workaround: N/A | |
| Keywords: PLL | |
Discovered in Version: 28.33.4030 | |
| 3073517 | Description: When connecting a ConnectX-7 adapter card to a ConnectX-5 or an NVIDIA Spectrum switch and trying to raise 10G/40G over 100G optics cable is not supported. |
Workaround: N/A | |
| Keywords: Optical cables, ConnectX-5, NVIDIA Spectrum | |
Discovered in Version: 28.33.4030 | |
| 3073517 | Description: When connecting a ConnectX-7 adapter card to a ConnectX-5 or an NVIDIA Spectrum switch, configuring first 10G/40G and then configuring back 100G we result in linkup failure. |
Workaround: Toggle both ConnectX-7 and ConnectX-5 or the NVIDIA Spectrum switch | |
| Keywords: ConnectX-5, NVIDIA Spectrum, linkup | |
Discovered in Version: 28.33.4030 | |
| 3070409 | Description: When connecting a ConnectX-7 adapter card to a ConnectX-6 Dx or an NVIDIA Spectrum-3 switch, NRZ speeds are not raised when using 200GbE optical cable. |
Workaround: Configure PHY_FEC_OVERRIDE on the ConnectX-7 side for the requested speed. | |
| Keywords: Optical cables, NRZ, ConnectX-6 Dx, NVIDIA Spectrum-3, 200GbE optical cable | |
Discovered in Version: 28.33.4030 | |
| 2993531 | Description: PML1 is disabled by default. Enabling it might result in server hanging. |
Workaround: N/A | |
| Keywords: PML1 | |
Discovered in Version: 28.33.2028 | |
| 2824427 | Description: Running with a debug firmware reduces security as if token was applied. |
Workaround: N/A | |
| Keywords: Debug Firmware | |
Discovered in Version: 28.33.2028 | |
| - | Description: Upgrading to firmware 28.33.2028 from any previous Engineering Sample (earlier than version 28.98.2406) must be done before installing WinOF-2 v2.90 driver and requires going through the following steps:
|
| Workaround: N/A | |
| Keywords: Firmware upgrade | |
Discovered in Version: 28.33.2028 | |
| - | Description: Downgrading from firmware 28.33.2028 to any previous Engineering Sample firmware is not supported. |
| Workaround: N/A | |
| Keywords: Firmware downgrade | |
Discovered in Version: 28.33.2028 |
