sends "packets" Packets must be of a certain size (~1500 bytes, 64k max) Only a certain amount of packets are allowed "in flight" Packets are guaranteed delivery, in-order (different than UDP) Starts with a Three-Way handshake. Syn -> Syn Ack -> Ack
in vacuum: 27ms, RTT in fiber: 41.04ms IP and Routes add delay. (Check out Ping and Traceroute) Remember the three way handshake? Latency. Bandwidth may not matter Connections are scarce, precious resources! (Why we have connection pooling)
managing TCP connections. Networking isn't just about a browser and a server. Intra- and inter- data center connections are important! Optimize for throughput: keep data small, reduce latency, reduce connections.
apps? What control do you want or need? Other AWS Services: ElasticCache, R53/ELB, ASG, Search, CloudFormation, OpWorks, Multi-AZ, Multi-Region Cloud Services: Most tech is offered as SaaS NewRelic, Loggly