Lecture 9 - Åbo Akademi

Switching strategies
• Allocating one buffer per physical link
• virtual circuits are time multiplexed with a single buffer per link
• uses time division multiplexing (TDM) to statically schedule the usage of
links among virtual circuits
• flits are typically buffered at the NIs and sent into the NoC according to
the TDM schedule
• global scheduling with TDM makes it easier to achieve end-to-end
bandwidth and latency guarantees
• less expensive router implementation, with fewer buffers