As the hash values are stored in the first table, they are compared to {TAIL ~ the hash values} stored in {HEAD ~ the second table} to identify new connections 
As the hash values are stored in the first table , they are compared to { TAIL ~ the hash values } stored in { HEAD ~ the second table } to identify new connections
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH