During vcenter 6.7 to 7 upgrade on a vcenter DC with all Hosts with ESXI version 6.7 u3.
1. Phase I , installation of new venter appliance completed.
2.Phase II , precheck failed due to
Source vcenter has lower version network profile on distributed switches. Currently profile upgrade is compatible to 6.6. Whether the above network profile upgrade on distributed switch cause downtime on VM connectivity.