Known Issues
The following is a list of general limitations and known issues of the various components of this MLNX-NATIVE-ESX release.
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Internal Ref. |
Description |
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2429623 |
Description: Enabling sriov_mc_isolation module parameter may result in vmknic and emulated NICs multicast and IPv6 traffic loss. |
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Workaround: Unset or set the module parameter to 0. |
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Keywords: Multicast, IPv6, SR-IOV |
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Discovered in Version: 4.16.71.1 |
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2139469 |
Description: Setting the "Allow Guest MTU Change" option in vSphere Client is currently not functional. Although guest MTU changes in SR-IOV are allowed, they do not affect the port's MTU and the guest's MTU remains the same as the PF MTU. |
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Workaround: N/A |
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Keywords: MTU, SR-IOV |
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Discovered in Version: 4.16.71.1 |
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1340255 |
Description: ECN statistic counters accumulatorsPeriod and ecnMarkedRocePackets display wrong values and cannot be cleared. |
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Workaround: N/A |
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Keywords: nmlx5 ecn nmlxcli |
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Discovered in Version: 4.16.71.1 |
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1340275 |
Description: ECN tunable parameter initialAlphaValue for the Reaction Point protocol cannot be modified. |
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Workaround: N/A |
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Keywords: nmlx5 ecn nmlxcli |
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Discovered in Version: 4.16.71.1 |
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2430662 |
Description: ConnectX-6 Dx speed remains zero after port goes down and reboot is performed. |
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Workaround: Turn the down and then up again |
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Keywords: ConnectX-6 Dx, link speed |
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Discovered in Version: 4.16.71.1 |
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1446060 |
Description: Although the max_vfs module parameter range is "0-128", due to firmware limitations, the following are the supported VFs per single port devices:
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Workaround: N/A |
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Keywords: SR-IOV, VFs per port |
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Discovered in Version: 4.16.14.2 |
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1340275 |
Description: ECN tunable parameter initialAlphaValue for the Reaction Point protocol cannot be modified. |
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Workaround: N/A |
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Keywords: nmlx5 ecn nmlxcli |
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Discovered in Version: 4.16.13.5 |
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1340255 |
Description: ECN statistic counters accumulatorsPeriod and ecnMarkedRocePackets display wrong values and cannot be cleared. |
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Workaround: N/A |
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Keywords: nmlx5 ecn nmlxcli |
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Discovered in Version: 4.16.13.5 |
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- |
Description: The hardware can offload only up to 256B of headers. |
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Workaround: N/A |
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Keywords: Hardware offload |
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Discovered in Version: 4.16.10.3 |
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685558 |
Description: There is no traffic between PV and SR-IOV VF connected to different ports on the same HCA. This issue is applicable to ESXi 6.5 & ESXi 6.5 UP1. The issue is solved in ESXi 6.5 UP2. |
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Workaround: N/A |
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Keywords: PV, SR-IOV VF, HCA |
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858972 |
Description: Setting the "Allow Guest MTU Change" option in vSphere Client is currently not functional. Although guest MTU changes in SR-IOV are allowed, they do not affect the port's MTU and the guest's MTU remains the same as the PF MTU. |
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Workaround: N/A |
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Keywords: MTU, SR-IOV |
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- |
Description: Geneve options length support is limited to 56B. Received packets with options length bigger than 56B are dropped. |
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WA: N/A |
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Keywords: Geneve |
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910292 |
Description: Running with ConnectX-4/ConnectX-4 Lx older firmware versions, might result in the following internal firmware errors:
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Workaround: Upgrade your firmware to the latest version 12.17.2020/14.17.2020 |
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Keywords: Firmware |
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746100 |
Description: The 'esxcli mellanox uplink link info -u <vmnic_name>' command reports the 'Auto negotiation' capability always as 'true'. |
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Workaround: N/A |
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Keywords: 'Auto negotiation' capability |
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1072640 |
Description: ESXi v4.16.10.3 cannot updated from v4.16.8.8 (GA) or from the Inbox driver using the "esxcli software vib update" command. |
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Workaround: To update it, run the "esxcli software vib install" command. |
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Keywords: Driver update |
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1068621 |
Description: SMP MADs (ibnetdiscover, sminfo, iblinkinfo, smpdump, ibqueryerr, ibdiagnet and smpquery) are not supported on the VFs. |
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Workaround: N/A |
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Keywords: SMP MADs |
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778371 |
Description: Wake-on-LAN does not notify when invalid parameters are provided. |
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Workaround: N/A |
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Keywords: WoL |
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778572 |
Description: Nested ESXi might not function properly. |
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Workaround: N/A |
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Keywords: Nested ESXi |
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765008 |
Description: Device RSS fails to hash traffic to sufficient RX rings with Broadcast traffic. |
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Workaround: N/A |
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Keywords: RSS, RX rings |
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852883 |
Description: In stress condition ‘Watchdog’ may appear, leading to uplink going up and down. |
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Workaround: N/A |
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Keywords: uplink, watchdog |