BGP routing

Cases, by severity

1. IL-0400 Public sector sites across Wales lost connectivity for over 8 hours as a PE router wrongly advertised a default routePSBA · 2026

   Root cause Configuration change

2. IL-0350 Hosts in an IONOS TXL cluster lost connectivity when an InfiniBand fabric resweep failed on a full multicast tableIONOS Cloud · 2026

   Root cause Capacity exhaustion

3. IL-0394 A Cloudflare router in Miami leaked IPv6 BGP routes to peers and providers for 25 minutes, congesting the backboneCloudflare · 2026

   Root cause Configuration change

4. IL-0564 Linode's Miami, Milan and Sao Paulo data centers had packet loss as traffic moved onto congested alternate pathsLinode · 2025

   Root cause Capacity exhaustion

5. IL-0341 Traffic between Cloudflare and AWS us-east-1 had high latency, packet loss and origin failures for almost four hoursCloudflare · 2025

   Root cause Capacity exhaustion

6. IL-0563 Linode servers lost connectivity in all data centers as route servers built incomplete BGP route tablesLinode · 2025

   Root cause Faulty deployment

7. IL-0233 A VPC control plane release broke IP alias routes in Nebius eu-west1, and Managed Kubernetes pods lost connectivityNebius · 2025

   Root cause Software defect

8. IL-0347 About 25% of Scaleway FR-PAR-1 hypervisors lost VPC connectivity when both VPC BGP route reflectors got stuckScaleway · 2024

   Root cause Software defect

9. IL-0509 SourceHut was down for 170 hours after a DDoS led its upstream network to null-route the PHL datacenter's subnetSourceHut · 2024

   Root cause Dependency failure

10. IL-0342 DigitalOcean's AMS3, LON1 and SFO2 data centers lost Internet connectivity in repeated waves as edge routers failedDigitalOcean · 2023

    Root cause Software defect

11. IL-0225 An IGP purge command made every Microsoft WAN router recompute routes, causing global latency, timeouts and packet lossMicrosoft Azure · 2023

    Root cause Configuration change

12. IL-0267 Wikimedia's eqsin cache site went unreachable when both of its transport links to the core data centers were downWikimedia Foundation · 2023

    Root cause Dependency failure

13. IL-0266 Eqiad routers looped traffic between each other after a BGP MED change and could not reach other sites' public IPsWikimedia Foundation · 2021

    Root cause Configuration change

14. IL-0539 KT's internet service failed nationwide for about 89 minutes as wrong routes spread from one router in BusanKT · 2021

    Root cause Configuration change

15. IL-0228 IPv4 routing across OVHcloud's global network broke after a router change put the full internet routing table into OSPFOVHcloud · 2021

    Root cause Configuration change

16. IL-0221 A backbone maintenance command disconnected all Facebook data centers, and its DNS servers withdrew their BGP routesMeta · 2021

    Root cause Operator error

17. IL-0255 Basecamp's two redundant links between data centers dropped together and a Redis replica resync loop stalled chat37signals · 2020

    Root cause Dependency failure

18. IL-0359 Queries to Gandi LiveDNS timed out when two crashed anycast DNS nodes kept announcing all three name server addressesGandi · 2020

    Root cause Software defect

19. IL-0358 Packet Public Cloud locations had high latency and unreachable paths from routing loops and blackholed trafficPacket · 2019

    Root cause Dependency failure

20. IL-0222 Google Cloud US regions had heavy packet loss and some went unreachable after the network control plane was descheduledGoogle Cloud · 2019

    Root cause Software defect

21. IL-0258 FastMail was unreachable for almost two hours when the GRE tunnels carrying its traffic from Level 3 went downFastmail · 2016

    Root cause Dependency failure