OPERATIONAL DEFECT DATABASE
...
...
An ESXi host is experiencing full traffic lossAll Virtual Machine traffic using a Mellanox adapter stopsTraffic is not passing over a Mellanox adapter but the link status shows as activeBoth the vmkernel and VMs go unresponsive on the network.vmkping through vmk interface using CX3 uplink will fail.
This issue is observed only on rare conditions, when you are using Mellanox adapter driver nmlx4_en 3.19.16.3 and older. Additionally, you might see this issue only on Mellanox ConnectX-3 MT27500 Network Card. Note: This issue is not seen with Mellanox ConnectX-3 Pro cards.
All network traffic can be lost when using this adapter
This is a known issue.Currently, there is no resolution.
To workaround this issue, Reboot the host.
Click on a version to see all relevant bugs
VMware Integration
Learn more about where this data comes from
Bug Scrub Advisor
Streamline upgrades with automated vendor bug scrubs
BugZero Enterprise
Wish you caught this bug sooner? Get proactive today.
