Migrating Distributed Switch from VMware vsphere 5.5 U3 to new vCenter vsphere 6.5

[omegape]

Good afternoon.

I am trying to migrate my Distributed Switch Version4 from my current vCenter 5.5U3 to my new vCenter 6.5.

The process I perform is to export them in the vCenter 5.5U3 port groups and the distributed switch to a file.

Import that file into the new vcenter 6.5.

This task displays an error:

Import entity task did not return the switch refence!

Could someone help me with this task?

Thank you

[mikejtucker]

You probably need to upgrade your dVS from 4 to 5 or 5.5

vCenter 6.5 does not support dVS below ver 5.0

[omegape]

Thanks for answering mikejtucker.

Update the version to 5.5 vSd and continue the problem.

Now in the new vCenter I have mounted a new switch distributed with the same port group, called in different ways to identify them and VLANs alike.

I disconnect 1 Host with 1VM from the old vCenter and connect it to the new vCenter.

I add the Host to the new vCenter and migrate the Uplink, the port group and MV to the new Port Group.

I eliminate the old distributed switch belonging to the old vCenter.

Problems found:

I ping VM, vmKernel. But answers and loses connection costantly.

Can anyone help me with this problem, or some alternative solution?

Thank you