Buying scenario
Data centre capacity refresh: 400G planning without OEM lock-in.
An illustrative UK data centre refresh scenario for compatible optics selection, model review and staged rollout planning.Project environmentdata centre / colocation
Market scopeUnited Kingdom
Buyer profileColocation provider
Buyer context
A staged refresh may involve mixed switch families, limited rollout windows and optics validation before a larger purchase.
Products to review
A staged product path can preserve existing 100G links while model checks and sample validation are completed for selected 400G links.
AP-Q56-400G-DR4Candidate for short single-mode links; confirm host support, coding, reach and documents.
AP-Q28-100G-LR4Candidate for existing 100G links in a staged migration; confirm device and spare-pool requirements.
100G/400G DAC or AOCAlternative for short-reach rack links; compare distance, handling and cabling requirements.
Outcome map
400G spine linkAP-Q56-400G-DR4 - Short singlemode links with clear document and model-check route
100G fallbackAP-Q28-100G-LR4 - Existing 100G path for staged migration and spare pool
Rack interconnect100G/400G DAC or AOC - Lower cost and simpler handling for short-reach rack links
Buyer evidence
Check the details before you shortlist.
Planning a network change?
Send the device estate, migration stage and delivery requirements.