VM lose network connectivity after upgrade to NSX-V 6.3.0 with ESXi 6.0.x and LACP uplink
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VM lose network connectivity after upgrade to NSX-V 6.3.0 with ESXi 6.0.x and LACP uplink

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Article ID: 344914

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Updated On:

Products

VMware NSX Networking VMware vSphere ESXi

Issue/Introduction

Symptoms:
After upgrading to NSX-V 6.3.0 with ESXi 6.0.x with LACP configured, virtual machines lose network connectivity.

Note: For additional symptoms and log entries, see the Additional Information section.


Environment

VMware vSphere ESXi 6.0
VMware NSX for vSphere 6.3.x

Cause

This issue occurs due to uplink name mismatch when doing LAG port check causing a mismatch with the VXLAN Endpoint ID and VMKNIC ID and as a result, VTEP and MAC table from host is not synced with the NSX controllers causing the outage.

Resolution

This issue is resolved in VMware NSX for vSphere 6.3.1, available at VMware Downloads.

A workaround is available. To work around this issue if you are not able to upgrade, contact VMware Support and note this Knowledge Base article ID (2149210) in the problem description. To contact VMware support, see Filing a Support Request in Customer Connect (2006985) or How to Submit a Support Request.


Additional Information

You experience these additional symptoms:
  • Virtual machines in different VXLAN on the same ESXi host lose network connectivity.
  • Both East-West and North-South connectivity is impacted.
  • In the /var/log/vmkernel.log file of the affected ESXi host, you see entries relating to failure in getting the uplink names similar to:

    2017-02-22--14.04//var/run/log/vmkernel.log:2351:2017-02-22T13:00:32.411Z cpu4:37011 opID=27db9719)vxlan: VDL2GetlEndpointAndSetUplink:333: Failed to get uplnk device by name LACP-Net*
    2017-02-22--14.04//var/run/log/vmkernel.log:2585:2017-02-22T13:06:38.962Z cpu46:38447)vxlan: VDL2GetlEndpointAndSetUplink:333: Failed to get uplnk device by name LACP-Net*

Note: The preceding log excerpts are only examples. Date, time, and environmental variables may vary depending on your environment.


虚拟机在升级到 6.3.0 后失去与 ESXi 6.0.x 和 LACP 上行链路的网络连接
ESXi 6.0.x および LACP アップリンクで NSX-V 6.3.0 にアップグレードすると仮想マシンがネットワークから切断される