Packet Loss via DTAG and DE-CIX

Incident Report for dataforest

Resolved

We are closing this incident, as the situation has been stable since this status post was created.

The DE-CIX engineering team is still investigating yesterday's congestion affecting our peering port. Until further clarification, selected critical peering sessions remain disabled. Therefore we do not anticipate further issues with our DE-CIX peering.

Inbound DTAG (Deutsche Telekom AG) traffic has been rerouted and will remain so until further notice to avoid similar situations.

We will re-enable the remaining peering sessions once the root cause has been fully clarified with the DE-CIX team and the mitigation is in place.

Only inbound traffic entering our network via DTAG or DE-CIX was affected for a few minutes till we disabled the sessions. All other uplinks/paths were not impacted. Outbound traffic was not affected.
Posted Feb 21, 2026 - 19:34 CET

Monitoring

At 17:12 and 17:16, our monitoring systems alerted us about packet loss via our DTAG port.

At 17:24, 17:27, and 17:31, our monitoring systems alerted us about packet loss via our DE-CIX port.

Investigation showed high incoming traffic congesting these ports. We have immediately disabled our sessions with these providers for now and are analyzing the root cause to implement appropriate measures.

Only traffic entering our network via DTAG or DE-CIX was affected by this issue, no other paths / uplinks were affected.
Posted Feb 20, 2026 - 17:48 CET

Identified

The issue has been identified and a fix is being implemented.
Posted Feb 20, 2026 - 17:27 CET
This incident affected: dataforest Network (Edge Network (affects all locations)).