Company access is that in which end systems are connected in connecting end systems in a organization or educational institution into the network.
On corporate and university campuses a local area network (( LAN) is typically used to connect end systems through the edge router. Ethernet technology is currently by far the most prevalent access technology in company networks. Ethernet operates at 10 Mbps or 100Mbps(and now even at 1 Gbps and 10 Gbps) it uses either twisted pair copper wore or coaxial cable to connect a number of end systems with each other and with an edge router. The edge router is responsible for routing packets that have destinations outside the LAN like HFC Ethernet tuxes a shared medium so that end users can there the transmission rate of the LAN. More recently shared Ethernet technology has been migrating toward switched Ethernet technology . Switched Ethernet uses multiple twisted pair Ethernet segments connected at a switch to allow the full transmission rate of an Ethernet to be delivered to different users on the same LAN simultaneously.