London, Oxford, and Cambridge could be connected via optical fiber;
Each fiber could be equipped with eighty 2.5 Gb/s Lucent WaveStar
DWDM (dense wavelength division multiplexers).
Each central office could be equipped with eighty Cisco 12000 routers each
with twelve 2.5 Gb/s ports.
Each central office could:
Support 200 Gb/s of local traffic. 96 Gb/s of this traffic could be voice
or video. This would be equivalent to 1.5M (64 Kb/s) telephone channels
or 64K (1.5 Mb/s) video channels.
Support 400 Gb/s of remote traffic. 160 Gb/s of this traffic could be
voice or video. This would be equivalent to 2.5M (64Kb/s) telephone
channels or 106K (1.5 Mb/s) video channels.
Survive 5 simultaneous faults while the fiber network could survive a
single fault.
