data centre functions

11. The data center of claim 9, wherein the switching fabric is configured to use a routing strategy that routes a message to avoid suboptimal-performing computing units in the data center.

12. The data center of claim 9, wherein the switching fabric is configured to use a cut-through routing strategy.

13. The data center of claim 9, wherein the switching fabric is configured to use a first subset of computing units for transmitting payload data in a first direction and a second subset of computing units for transmitting payload data in a second direction.

14. The data center of claim 1, wherein said at least three computing units are configured to communicate with each other via wireless communication using a media access protocol that addresses a hidden terminal phenomenon.

15. The data center of claim 1, wherein said at least three computing units are configured to communicate with each other by transmitting control data and payload data, a ratio of control data to payload data being selected to provide a target latency-related and capacity-related performance.