Why Ethernet Switches Need Room for Sudden Traffic Bursts
Why Ethernet Switches Need Room for Sudden Traffic Bursts
Small buffers can absorb momentary congestion, while long queues create delays of their own.
Several devices can send to one destination at once, filling the output queue on a switch. A buffer gives the link time to drain some of that traffic.
When bursts are sustained, a deeper queue can preserve more packets but increase latency. Congestion signaling and traffic pacing can reduce the pressure before the queue fills.
Look at queue depth, loss and delay together. A throughput average taken over a minute can miss short bursts that cause dropped frames, slow storage operations or visible pauses.
