Core router reload in Singapore (SIN1)

Affected:

Network · SIN1, VPS hosts · SIN1

Duration

41 min

Reference

inc-20260520-1

Timeline

1. Resolved20 May 2026, 11:41 UTC

   Resolved. The vendor supplied a fix and both routers are back in the active/active configuration. Impact was limited to TCP session resets for a few seconds.

2. Monitoring20 May 2026, 11:29 UTC

   The affected router is back and synchronised. We are keeping traffic on the redundant path while we watch for a recurrence.

3. Identified20 May 2026, 11:09 UTC

   The reload was triggered by a software bug affecting the route processor. The redundant router is carrying all traffic normally.

4. Investigating20 May 2026, 11:00 UTC

   A core router in Singapore (SIN1) reloaded unexpectedly. Traffic failed over to the redundant router within seconds; some sessions may have been reset.

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