CRQ12430695-M247-Singapore-SAF-Uplink Migration AS02/AS04/AS06
Start: Wed, Jul 15th 2026, 01:00
End: Wed, Jul 15th 2026, 07:00
Maintenance Details
• ID Change Request: CRQ12430695
• Title: Migration of as02.wco1.sg, as04.wco1.sg, as06-10g.wco1.sg
• Maintenance Type: M1
• Responsible Team: NOC L2
• Scheduled Date: 15.07.2026
• Time Window: 22:00 UTC – 04:00 UTC
• Estimated Duration: 5 hours
Targeted Equipment – agg1v – as02; as04; as06
Purpose of the Activity Migration of the mentioned access switches to the new agg1v aggregator, as part of the POP capacity upgrade process.
Potential Impact
• Impact type: total downtime per switch
• Estimated duration: ~10 minutes per device
• Affected services: all services transiting or delivered through these devices
• Impacted customers: all customers whose services depend on the mentioned nodes
Mitigation Measures Gradual migration of links to the new aggregator. The migration will be performed sequentially, one device at a time, to avoid cumulative impact. • Real time monitoring of reconvergence • Immediate intervention in case of any post migration instability
Identified Risks
Worst case scenario: total downtime for the services of each switch during its migration Rollback trigger conditions: post upgrade instability or abnormal reconvergence > 5 minutes
Rollback Plan
• Reverting the devices back to the previous aggregator (old agg1v)
• Estimated duration: ~20 minutes per switch
Regards
M247 Support