MTBF with retry. For the machine of Exercise 21.1, recompute the MTBF assuming that link-level retry masks all link errors, all routers are self-checked, and end-to-end packet retransmission is...

MTBF with retry. For the machine of Exercise 21.1, recompute the MTBF assuming that link-level retry masks all link errors, all routers are self-checked, and end-to-end packet retransmission is employed.

Exercise 21.1

System MTBF. Consider a 1,024-node, 3-D torus system with 2 logic chips and 8 memory chips per node. Each node is connected to its 6 neighbors via links with 16 Gbits/s of bandwidth each. Compute the MTBF for this system using the numbers in Table 21.1.