Documentation is wrongly stating that "All nodes must be in the same VLAN" with vSphere UPI installation

Furthermore, it also states the following: "All nodes must be in the same VLAN. You cannot scale the cluster using a second VLAN as a Day 2 operation."

This seems to be a wrong copy/paste coming from IPI documentation, but not sure when this was added, as a refactoring effort wrongly states that [0]  implemented the update.

4.12+

Various customers have already different nodes on different VLANs (especially infra roles) without any impacts over running clusters or when expanding (Day2) nodes, so this is not a thing

    1. Check documentation links [1] [2] [3] [4] [5] - note: content has been moved to different location over different RHOCP versions
    2. Check internal discussion links about the wrong content of this statement(s)
    

Documentation provides wrong statement about the non feasibility of multiple VLANs involved when using RHOCP with vSphere UPI

Documentation should state that this is fine, as long as firewall rules are properly set as per network requirements

[0] https://github.com/openshift/openshift-docs/pull/69913

[1] https://docs.openshift.com/container-platform/4.12/installing/installing_vsphere/installing-vsphere.html

[2] https://docs.openshift.com/container-platform/4.13/installing/installing_vsphere/installing-vsphere.html

[3] https://docs.openshift.com/container-platform/4.14/installing/installing_vsphere/upi/upi-vsphere-installation-
reqs.html

[4] https://docs.openshift.com/container-platform/4.15/installing/installing_vsphere/upi/upi-vsphere-installation-reqs.html

[5] https://docs.openshift.com/container-platform/4.15/installing/installing_vsphere/upi/upi-vsphere-installation-reqs.html