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This conference talk from SREcon25 Americas explores the hidden networking limitations in AWS EC2 instances. Join Steffen Gebert and Miklos Tirpak from emnify as they share hard-earned lessons about what "up to 10 Gbps" really means in practice, especially when dealing with small or fragmented packets. Discover the undocumented network constraints they encountered while running mobile core network functions on AWS. Learn about critical limits like packets-per-second and connection tracking, how these limits impact network traffic when exceeded, and methods to monitor remaining quotas or troubleshoot application issues. The speakers reveal several scenarios where potential incidents might be lurking in documentation footnotes. Gain valuable insights from their real-world horror stories that will help you avoid similar networking challenges in your AWS infrastructure.
