At approximately 08:00 UTC our engineers began to investigate a large traffic event impacting performance within our Europe and North America regions. 

Standard traffic engineering practices have been deployed in response to this event, in an effort to reduce the potential impact to our customers within the regions. Customer may continue to see elevated errors and latency as mitigation efforts continue to be deployed.

All other products and services are unaffected by this incident.

Our engineers are implementing adjusted mitigation strategies in our North America and Europe regions to continue to balance traffic and manage performance.

Error rates and latency have improved, although customers may still experience intermittent periods of performance impact as traffic engineering continues to be deployed.

Engineering has implemented mitigation strategies and has confirmed a gradual recovery in our North America and Europe regions. 

We are closely monitoring performance in these regions as a top priority as this event continues and will provide a final update once customer and end user experience has been fully restored.

Engineering has confirmed that Europe and North America regions have been fully restored. Customers may have experienced elevated errors and latency from 08:00 to 16:37 UTC.

This incident is resolved.

Affected customers would have experienced impact to varying degrees and to a shorter duration than as set forth above.

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Fastly Engineers detected a performance impacting event affecting the Dublin (DUB) data center.

All other data centers and services were unaffected. The issue has been resolved and we are monitoring performance closely.

Fastly will be adding capacity at our Dublin (DUB) POP. End-users may observe connection resets as traffic is migrated onto new hardware starting on 07 November 2023 at 01:00 UTC.

Our estimated duration is 4h. 

When this change is applied, customers may observe additional origin traffic as new cache nodes retrieve content from origin. Please verify that your origin access lists allow the full range of Fastly IP addresses (https://docs.fastly.com/en/guides/accessing-fastlys-ip-ranges). Customers with any questions or concerns should contact Fastly’s Support team (support@fastly.com).

The scheduled maintenance has been completed.

Fastly Engineers detected a performance impacting event affecting the Dublin (DUB) data center.

All other data centers and services were unaffected. The issue has been resolved and we are monitoring performance closely.

This incident has been resolved.

We're investigating elevated errors in Dublin (DUB).

All other locations and services are unaffected

A fix has been implemented and we are monitoring the results.

This incident has been resolved.

Traffic in Dublin (DUB) has been temporarily rerouted.

All other locations and services are unaffected.

This incident has been resolved.

We're currently investigating performance impacts in Europe, North America.

All other locations and services are unaffected.

This issue has been identified and a fix is being implemented. 

A fix has been implemented and we are monitoring the results.

This incident has been resolved.

Traffic in Dublin (DUB) has been temporarily rerouted.

All other locations and services are unaffected.

This incident has been resolved.

We are aware of a possible issue and are working to determine the scope and impact.

This issue has been identified and a fix is being implemented. 

A fix has been implemented and we are monitoring the results.

This incident has been resolved.

- Retrospective Update -

Fastly created this post to share that we were aware of previous impact reported by our Customers.

Impacted customers would have experienced timeout errors when attempting to connect to our DUB POP between the hours of 01:35 UTC to 11:44 UTC.

This issue was resolved ~11:44 UTC on June 22 2023, and left in monitoring for a period of time to confirm no additional/recurring impact to our customers.

No other POP locations or services were affected.

Fastly Engineering has conducted a full retrospective of this incident and a copy of the Fastly Service Advisory (or FSA) will be made available for Fastly Customers upon request. Please contact Support with any questions or concerns at https://support.fastlly.com.

We're currently investigating potential impact to performance with our CDN services.

A fix has been implemented and we are monitoring the results.