Suboptimal routing for a subset of prefixes from ZRH

时间线

1. 已解决2026年1月19日 00:01 UTC

   Routing is back to normal from every probe location. Duration: 41 minutes. Latency on the affected path was up to 25 ms above normal; no connectivity was lost.

2. 观察中2026年1月18日 23:48 UTC

   The leaked route has been withdrawn. We are keeping our more specific announcement in place for 13 minutes as a guard.

3. 已确定原因2026年1月18日 23:30 UTC

   A transit provider two hops away leaked a more specific route for one of our /24s. We have announced the same more specific ourselves so that it wins on the shortest path, and we have asked Init7 to filter the leak upstream.

4. 调查中2026年1月18日 23:23 UTC

   A subset of our ZRH prefixes is being reached over an unusually long path from Turkey. We see it in our external probes; users in other regions are not affected.