migrate from old vCenter to new vCenter (V2V)

Gents Hi

We just complete installation the new vCenter Infrastructure (Network+ storage, HA ...etc)

now we are planning to migrate all VMs on the old vCenter and old ESXi to the new infrastructure : vCenter + ESXi + Storage ( note: the network configuration are the same)

what steps we need to do to complete V2V migration.

note: all vCenters (old and new) in the same site.

BR