Chaosnet's innovation of a preamble bit string for packets was eventually incorporated into the 10 Mbit / s Ethernet standard.
2.
The standard requires generation of sufficient preamble bits to make sure a frame can be received when operated within specification limits ( i . e . applying the 5-4-3 rule ).
3.
You could create a network with more repeaters if you made sure the total number of lost preamble bits wouldn't exceed the requirements of the receiving hardware and collisions would not pose a problem.
4.
In a lab at DEC they knew how many bits their repeaters would lose and knowing this were able to create an 11 segment, 10 repeater, 3 active segment ( 11-10-3 ) network that maintained a round trip delay of less than 51.2 �s and a sufficient number of preamble bits that all end nodes functioned properly.
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