9/27/2023 0 Comments Ec2 pricing bandwidth![]() It’s a fully managed service, there was nothing for me to manage myself past the upload, and, as a result, there was nothing for me to misconfigure to screw a test up.Ī few days before I ran the test, AWS helpfully spun up a new me-central-1 region in the United Arab Emirates. Obviously, the solution here was for me to do an experiment or two so that other people wouldn’t have to test it themselves. Even the most aggrieved, bean-counting customer with a grudge against Amazon doesn’t conduct an internal audit of these things because they’re so hard to validate and verify. Very few customers have an on-the-wire level of insight into their traffic volumes. ![]() After all, every AWS customer effectively takes AWS on faith when it tells you how many giga-/tera-/peta-/exabytes of data transfer you had last month. Are customers charged for this? If so, this may add up to something significant at scale for some workloads. Those acknowledgement packets, while small, are definitionally traffic that is egressing from AWS. Should that acknowledgement not arrive, the sender retransmits the packet. Every packet sent via TCP has the receiver send a packet acknowledging its receipt. My question stems from the way Transmission Control Protocol (TCP) works. But I got to wondering just how “free” inbound traffic really is. This generally distills to: Outbound traffic is an inscrutable-yet-probably-unreasonably-large amount of money, and inbound traffic is free. How AWS data transfer pricing worksĪWS’s data transfer pricing is so ludicrously complex that I had to build a diagram to understand it: How I went about validating it, however, might prove slightly more interesting to some folks. On the face of things, that statement is extremely uninteresting. AWS says it charges nothing for data ingress, and it is telling the truth.
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