The Management Network vSwitch is deleted on the ESXi host (1010992)

Purpose

This article provides steps for troubleshooting a situation where the Management Network vSwitch is deleted on the ESXi host.

Resolution

You must restore the network settings to the default settings.

Note: This procedure requires you to re-register virtual machines, recreate VMkernel ports, and vSwitches.

 

To restore your network work settings:

1. Use the Direct Connect UI (DCUI) to connect to ESXi host.
2. Click Reset System Configuration.
3. Reboot the ESXi host.
4. Enter the networking information. For more information, see Configuring the ESXi Management Network from the direct console (1006710).
5. Do a test ping using the DCUI. If successful, you can access the ESXi host using the VI Client.
6. Re-register virtual machines and recreate your vSwitches. For more information see, the ESXi documentation.

Source:-

http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1010992