Inside the AWS Networking Lab: Switches, Optics, and Fiber Innovations

This tour of Amazon Web Services' networking lab showcases the custom-built hardware that powers its data center backbone, from multi-terabit switches to long-haul optical systems. It provides a close-up look at how these components are designed, tested, and deployed at scale.

■ AWS Switch Portfolio
- Generational progression from 3.2T and 12.8T platforms to 51.2T and 102.4T designs
- Port platforms moving from 100G QSFP28 to 400G QSFP-DD and 800G/1.6T OSFP with PAM4
- Internal architecture: management processors, SSD storage, I2C monitoring boards, power distribution

■ Management, Timing, and Encryption
- 1G management switch and self-built serial console servers
- Satellite-disciplined timing appliance delivering microsecond-level precision
- Encryption switch (MaxE) supporting 400G ZR optics in a 2RU form factor

■ Optical Transport and Fiber
- DWDM modules carrying up to 64 wavelengths per fiber using 16QAM modulation
- Hollow-core fiber and its latency advantages over traditional single-mode fiber
- MMC connectors and the Firefly multi-fiber test and protection tool

■ Validation and Deployment
- Environmental chamber testing across temperature and humidity cycles

Network engineers, data center professionals, and infrastructure enthusiasts will gain a concrete understanding of the hardware choices behind hyperscale networking and the trends shaping upcoming generations of switches and optics.