Switch stack failover in Frankfurt (FRA1)

Affected:

Network · FRA1, VPS hosts · FRA1, Dedicated servers · FRA1

Duration

2 h 05

Reference

inc-20250723-1

Timeline

1. Resolved23 Jul 2025, 09:58 UTC

   Resolved. The stack is back to full redundancy. Total customer-visible impact: a 4 to 8 second connectivity gap on one rack.

2. Monitoring23 Jul 2025, 09:31 UTC

   The power supply has been replaced from the on-site spare pool and the stack is re-forming.

3. Identified23 Jul 2025, 08:15 UTC

   The primary switch member has a failed power supply. Servers are running on the peer at full bandwidth.

4. Investigating23 Jul 2025, 07:53 UTC

   A top-of-rack switch in Frankfurt (FRA1) failed over to its stack peer. Affected servers lost connectivity for a few seconds.

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