Implementing SRE in a Telco with Reliability Enhancing...
summary
A telco that suffered major outages in 2021 (including a 6 hour emergency‑call failure and a recent 40 minute internet outage) builds nine Reliability Enhancing Procedures as cookbook templates, videos and tooling and applies them across hundreds of services. A structured service modeling creates a service graph and clear boundaries, rep 3 service roasting enumerates risks with impact and probability so top risks become backlog items, and rep 8 runs controlled resilience testing in production (pulling cables, disconnecting a datacenter) to prove fixes and raise team confidence.
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chapters (10)
- 0:00SRE in a Telco intro
- 5:03Reliability priority at Swisscom
- 8:15SRE challenges in large org
- 11:50Introducing REPs
- 13:15Overview of nine REPs
- 21:02Deep dive: REP 1 service modeling
- 27:12Deep dive: REP 3 service roasting
- 31:02Deep dive: REP 8 resilience testing
- 34:13REPs challenges and next steps
- 36:40REPs future and open source
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