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Key performance parameters of the switch
Release time:
2025-04-15
When purchasing a switch, you need to pay attention to the following parameters:
need to pay attention to the following parameters when purchasing a switch:
- Backplane bandwidth: determines the data processing capacity, calculated as Number of ports×Port rate×2 (full-duplex)".
- Packet forwarding rate: measures the number of packets processed per second, measured in Mpps (million packets per second);
- Port type and rate: support RJ-45 (network cable), SFP/QSFP (optical fiber) and other interfaces, with a rate covering 10Mbps to 100Gbps;
- Cache size: Handle burst traffic and avoid packet loss;
- Switching modes: store-and-forward (high reliability), pass-through forwarding (low latency), and fragment drop (balanced performance).
For example, data center switches need to have high backplane bandwidth and low latency to support large-scale AI training tasks.
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