If a connection from {HEAD ~ User PC} 20 to {TAIL ~ Weather Server} 26 is established, the path becomes green 
If a connection from { HEAD ~ User PC } 20 to { TAIL ~ Weather Server } 26 is established , the path becomes green
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH