Intermittent packet drops for VMs on NSX overlay networks (VXLAN or Geneve) using Broadcom BCM5741x NetXtreme-E Network Adapters during high traffic load
Article ID: 343762
Updated On:
Products
VMware Cloud Foundation
VMware NSX Networking
VMware vSphere ESXi
Issue/Introduction
This article describes a known issue found in Broadcom network adapters running 214.0.xxx.x firmware versions.
Symptoms:
Symptoms:
- The network adapters are Broadcom BCM57412, BCM57414 or BCM57416 with firmware version 214.0.166.0, 214.0.188.0, 214.0.190.0, 214.0.191.0 or other 214.0.xxx.x firmware
- Network traffic on NSX-V or NSX-T logical switches (VXLAN or Geneve) is dropped intermittently
- Packet drops can occur during periods of high network load
- In NSX-T environments, the BFD channel used to monitor the health of Geneve Tunnels between transport nodes may go down as reported in the Transport Nodes section of the NSX UI or as verified from the following command:
nsxdp-cli bfd sessions list
Remote Local local_disc remote_disc recvd sent local_state local_diag client flaps
192.168.1.151 192.168.1.152 5c7ff9cb 0 251 296 down Control Detection Time Expiredvdl2 2
192.168.1.153 192.168.1.152 19ad9cd9 0 237 298 down Control Detection Time Expiredvdl2 2
192.168.1.154 192.168.1.152 7c11ce76 0 248 297 down Control Detection Time Expiredvdl2 2
Environment
VMware vSphere ESXi 6.5
VMware NSX-T Data Center
VMware vSphere ESXi 6.0
VMware vSphere ESXi 6.7
VMware NSX-T Data Center
VMware vSphere ESXi 6.0
VMware vSphere ESXi 6.7
Cause
Packet drops occur on NSX overlay networks (VXLAN or Geneve) due to incorrect filter setup logic in the NIC firmware.
Resolution
To resolve this issue upgrade the NIC firmware:
- For Dell branded adapters, upgrade to firmware version 214.0.222.1
- For other hardware vendors, please refer to the vendor to obtain the appropriate release
Feedback
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