The L2 switches may collect this information at the time the end user is authenticated, such as by using {HEAD ~ an end user software access client} or a 802.1x port based network access control protocol modified to request {TAIL ~ such security information} 
modified to request
The L2 switches may collect this information at the time the end user is authenticated , such as by using { HEAD ~ an end user software access client } or a 802.1x port based network access control protocol modified to request { TAIL ~ such security information }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL