[{"id":"IL-0478","title":{"en":"A failed GPU network adapter made NCCL silently reroute through GPU 0's adapter and slowed MoE training steps","ko":"GPU 한 개의 네트워크 어댑터가 고장 났는데 NCCL이 알림 없이 통신을 우회시켜 MoE 학습 스텝이 느려졌다"},"org":"Amazon","org_slug":"amazon","date":"2026-05-18","severity":"unknown","root_cause":"hardware-failure","url":"https://benchlet.com/incidentlib/app/cases/IL-0478","shared_components":["network-link"]},{"id":"IL-0586","title":{"en":"Four NIC-to-T0 links flapped in rapid succession and cut a 50K-GPU pretraining job's throughput about 25% for a minute","ko":"T0 스위치 트랜시버의 링크 네 개가 연달아 플래핑해 50K GPU 사전 학습 작업의 처리량이 1분 동안 약 25% 떨어졌다"},"org":"OpenAI","org_slug":"openai","date":"2026-05-05","severity":"unknown","root_cause":"hardware-failure","url":"https://benchlet.com/incidentlib/app/cases/IL-0586","shared_components":["network-link"]},{"id":"IL-0540","title":{"en":"Korea's local government administrative services and Government24 went down as a router port dropped most large packets","ko":"센터 사이를 잇는 라우터의 포트에서 큰 패킷이 유실돼 지방행정전산서비스와 정부24가 하루 넘게 멈췄다"},"org":"Korea Ministry of the Interior and Safety","org_slug":"korea-ministry-of-the-interior-and-safety","date":"2023-11-17","severity":"unknown","root_cause":"hardware-failure","url":"https://benchlet.com/incidentlib/app/cases/IL-0540","shared_components":["network-link"]}]