// Tool
Bandwidth-Delay Product
The data "in flight" on a link at any moment. For TCP to keep a high-bandwidth, high-latency link saturated, the receive window must be at least the BDP. Long Fat Networks (LFNs) need RFC 1323 window scaling.
Common: LAN 1–5 ms · US coast-to-coast ~70 ms · transcontinental 100–250 ms · satellite 600+ ms
Quick presets:
