AbidaNet LLC has a patent pending that describes the construction of networks
with the following characteristics:
- hundreds or even thousands of stations sharing a common medium without the
need for switches and hubs with their associated cost and latencies
- bandwidth utilization is limited only by the propagation delays across the
medium
- new nodes being added to the network quickly and with minimal interference
with existing data traffic
- ad hoc networks being formed and their bandwidth managed
efficiently
- because the network is self-aware, administrators having access at any
station to the state and health of the network without interfering with
existing data traffic, and
- unauthorized stations attempting to join the network being immediately
identified and physically located from the data acquired by existing
authorized stations
The target of the company's efforts is the most difficult, and therefore the most neglected,
arena of communications. This area goes by a number of names in different industries:
- Interconnectivity: ensuring that all sensors, displays and control centers in a complex
command and control environment establish and maintain communications
- Wiring a building: ensuring that there is effective, high-speed network access at every desk
on every floor of the building
- The last mile: connecting remote devices, soldiers or vehicles on the front lines to
their communications center
- From the end of the street to the house: the copper connection from the box at the end of the street to each house
These problems all have common components:
- the need to effectively utilize the bandwidth available on whatever
communication medium is employed
- the need for new nodes to be added to the network quickly and with minimal
interference with existing data traffic
- the need for administrators to determine the state and health of the
network without interfering with existing data traffic
- the need to prevent unauthorized access to the network
The typical solution to most of these problems has been an implementation of the IEEE 802.3
standard usually referred to as "Ethernet." The Ethernet protocol has been
developed and refined since its invention in 1973. However, its fundamental
flaws remain:
- Networks cannot ever successfully use more than 30% of the available
bandwidth.
- Due to the layers of switches, network latencies are usually unacceptable
- There is no effective, non-intrusive administrative access to the network
health or status, and
- There is no effective means of preventing unauthorized access.
When network frequencies rise above the historical 100Mbps, other issues with
the Ethernet protocol make sharing media completely impractical. Networks at
1Gbps and above revert to point-to-point connections between each station and a
hub or switch. A complex collection of hubs and switches then provide the
connectivity between stations on a local network, and to the outside world.
The network performance is then limited not by the media to the stations,
but by the performance of the hubs and switches. Networking companies are then
in the business of selling newer, better, faster hubs and switches attempting to
minimize the performance problems they introduce.