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Document Version Release Date Details 2 09/19/2018 Description section has been updated with a better explanation about this issue. 1 08/20/2018 Original Document Release. On any HPE ProLiant server running VMware ESXi 6.5 and configured with any of the Emulex chipset based network adapters listed in the Scope section below, one or more Virtual Machines may lose or intermittently lose network communication. When this issue occurs, packets are getting dropped in the driver receive path where the packets transition to the Host virtual networks (for example, networks between the physical driver and Virtual Machines). The packets are dropped because the receive queue transition to a quiesced state; and by default, the driver is supposed to remove the MAC filter associated with the quiesced queue. As a result, the quiesced queue and driver are not in sync, and the packets are getting dropped for this network queue. The following conditions may be experienced when this issue occurs: One or more virtual machines may lose communication, but not necessarily all the Virtual Machines hosted by the server. Network queues are opened between the driver and a single Virtual Machine. If a queue goes into a quiesced state, and the driver and queue are not functioning as expected; then the network queue for the designated Virtual Machine may not function correctly. Thus one Virtual Machine may lose communication, when the other Virtual Machines continue to transmit and receive packets as expected. An analysis of the operating system log captures may show a one-to-one correlation between the number of packets dropped and the number of packets received when the virtual network queue is in a quiesced state. The virtual machine's network communication is restored if the Virtual Machine is rebooted. When rebooted, all network queues, including the quiesced queues where the driver and queue are not working properly, associated with the Virtual Machines are closed. After a reboot, new network queues are created for the Virtual Machines as needed. Note: VMkernel LoadBalancer utility and other components may legitimately quiesce a network queue for any number of reasons.
Any HPE ProLiant server running VMware ESX 6.5 and configured with any of the following HPE Emulex network adapters: HPE Ethernet 10Gb 2-port 557SFP+ Adapter HPE FlexFabric 10Gb 2-port 556FLR-SFP+ Adapter HPE FlexFabric 10Gb 2-port 556FLR-T Adapter HPE FlexFabric 20Gb 2-port 650FLB Adapter HPE FlexFabric 20Gb 2-port 650M Adapter HPE StoreFabric CN1200E 10Gb Converged Network Adapter HPE StoreFabric CN1200E 10GBASE-T Dual Port Converged Network Adapter
To fix this issue, download and install driver version 12.0.1115.0 included in the HPE Emulex 10/20 GbE Driver for VMware vSphere 6.5 Version 2018.06.04, available at the following URL: https://support.hpe.com/hpsc/swd/public/detail?sp4ts.oid=1009535656&swItemId=MTX_85f5df7f12524f7caa2c1fea1a&swEnvOid=4184 Important: HPE recommends updating both the driver and firmware, to ensure the system is using a valid HPE network adapter recipe. To update the network adapter firmware, download and install the HPE Firmware Flash for Emulex Converged Network Adapters for VMware vSphere 6.5 Version 2018.06.01, available at the following URL: https://support.hpe.com/hpsc/swd/public/detail?sp4ts.oid=1009535656&swItemId=MTX_fff893e5faae4d6cb5b11b3ea0&swEnvOid=4184 NOTE: Products sold prior to the November 1, 2015 separation of Hewlett-Packard Company into Hewlett Packard Enterprise Company and HP Inc. may have older product names and model numbers that differ from current models. RECEIVE PROACTIVE UPDATES : Receive support alerts (such as Customer Advisories), as well as updates on drivers, software, firmware, and customer replaceable components, proactively via e-mail through HPE Subscriber's Choice. Sign up for Subscriber's Choice at the following URL: Proactive Updates Subscription Form. NAVIGATION TIP : For hints on navigating HPE.com to locate the latest drivers, patches, and other support software downloads for ProLiant servers and Options, refer to the Navigation Tips document . SEARCH TIP : For hints on locating similar documents on HPE.com, refer to the Search Tips Document .