Zero round trips

Wire 07

Choose

A repeat visitor has a valid TLS resumption ticket on a 90 ms path. The app sends catalog reads and payment writes. Choose the early data rule. Keep read p99 below 130 ms. A replayed packet must not create a second payment.

Goals

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99 of 100 requests finish faster than this.What the servers and services cost each month.
Choose a design
Send reads and payments as early data
Wait for the handshake on every request
Send reads as early data; payments wait