Network Architecture Task Force: Advanced Networks

([R] is a router; [MPR] is a multi-port repeater)

Several problems exist with the current building topology:

• It may exceed the ethernet specification for populated segments and repeater count in many cases.
• User-installed repeaters deployed from wall plates are not possible.
• Because of the large number of devices in some buildings, the collision domains are excessively large leading to unstable ethernets.
• Bandwidth requirements within a building and between buildings above 10Mb/sec shared ethernet are difficult to provide.