I recently setup x2 new ESXi 6.7u1 servers without access to each hosts LAN. I needed to configure the correct vSwitch failover setting so that the port channel uplinks would work correctly:

1. Enable SSH console from the management settings > troubleshooting options on the ESXi console.
2. Bring up the CLI console with alt + f1.
3. Enter the following commands to set the vSwitch and Management portgroup failover policy:

esxcli network vswitch standard policy failover set -v vSwitch0 -l iphash
esxcli network vswitch standard portgroup policy failover set -l iphash -p 'Management Network'

4. alt + f2 will switch you back to the vMware DCUI console.

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