Cut-through techniques

• ”Cut-through techniques” is a generic name for various techniques designed to drop packet layer routing into data link layer switching when a data stream is detected

• The motivation of various cut-through techniques is based on the following assumptions:

  • Multimedia traffic is stream oriented, has high band-width requirements and will constitute the majority of tomorrow’s internet traffic
  • Routing is slow and switching is fast
  • Future core networks will be ATM-based

=> We can gain an order of magnitude in cost-efficiency by detecting data streams and dropping them to ATM level

• These assumptions are not necessarily true

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