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Partial IP outage

Scheduled on 12/03/2026 02:09:00 Status Finished Estimated finish 12/03/2026 02:30:00

We are currently exoeriencing a partial outage effectng a small number of IP ranges, We are investigsting and wil update this notification soon.

Related servers / services

Date Action
12/03/2026 02:18:00 Ticket Update / Reason for Outage (RFO)

Summary
During the early hours of the morning, a partial IP announcement outage occurred following the loss of connectivity on a Virgin Media network link. Due to existing redundancy within the data centre, this would not normally result in service disruption; however, certain IP ranges were not correctly announced via the Lumen transit path.

Timeline
• 01:44 AM – A partial IP announcement outage was detected.
• 01:47 AM – First-line support carried out initial checks to confirm the issue.
• 01:55 AM – 3rd line network engineers were called to investigate the issue.
• Investigation Findings – It was determined that configuration changes applied during the previous maintenance window on Saturday 7th March had resulted in some IP ranges not being correctly announced to Lumen when the London via Virgin path was unavailable.
• 02:07 AM – Engineers manually added the affected IP ranges to the Arista network configuration to ensure they were announced correctly.
• 02:18 AM – Monitoring confirmed that all IP ranges were being correctly announced directly from the data centre and had remained stable.

Regards
NOC Team
Blynx AIM
12/03/2026 03:20:00 Final Update:

• 03:12 AM – The Virgin Media link was restored. Virgin confirmed the outage was caused by rodent damage, which required repair work on their infrastructure.

Current Status
• All IP ranges are now being correctly announced and have remained stable since remediation.
• The Virgin connectivity has been restored by the provider.

Next Steps

Engineers are continuing to investigate why the IP announcements ceased when the Virgin link disconnected. Additional safeguards will be implemented to ensure all IP ranges continue to be announced correctly in the event of any future Virgin fibre outage.

Regards
NOC Team
Blynx AIM Ltd.