How to libvirt API and virsh reconnect to another remote hypervisor

We can use "connect" URI command to reconnect to another remote hypervisor

1)Open virsh Terminal
#virsh

2) Connect to Remote VMware ESXi Server
virsh #connect esx://192.168.12.153?no_verify=1
or
virsh #connect esx://root@192.168.12.156?no_verify=1

esx : driver or hypervisor
192.168.12.153 : ESXi Server

3) Connect to Remote VMware vCenter Server
virsh #connect vpx://192.168.12.156/vCenter/Cluster-1/192.168.12.153?no_verify=1
or
virsh #connect vpx://root@192.168.12.156/vCenter/Cluster-1/192.168.12.153?no_verify=1

vpx :  driver or hypervisor
192.168.12.156 : vCenter Server
192.168.12.153 : ESXi Server (host)
vCenter : Name of Datacenter
Cluster-1 : Name of Cluster or Compute Resource

http://libvirt.org/uri.html