Strategy
The majority of FCR‘s will agree to an identical result in the presents of an arbitrary fault in a FCR
Rules
- Indenticaly results in the majority of FCR‘s can only be obtained, if the input data are identical (input congruency requirement)
- The FCR‘s must be connected by cross-strapped point to point data path (connectivity requirement)
- The FCR‘s must be synchronised by a known skew (synchronisation requirement)
- The Byzantine law with f = number of arbitrary faults to be tolerated:
Redundance (FCR‘s): | R = 3 f + 1 |
Connectivity (Links per FCR): | N = 2 f + 1 |
Distribution rounds: | K = f + 1 |
Synchronisation: | Fault tolerant clock |



