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5G rollout: when does it actually become an SD-WAN underlay?

5G coverage in Nigerian commercial hubs is no longer a press release, it's a practical SD-WAN underlay for the right use cases. Here's how to know when it's ready for yours.

4 Mar 20263 min read

5G has been progressing from Nigerian operator press releases into actual real-world coverage across Lagos, Abuja, and several state capitals. For SD-WAN architects, the question isn't 'is 5G real?' anymore, it's 'is it real enough at this specific site to bond into the WAN?'

When 5G earns a slot in the underlay mix

  • Strong, stable signal verified by site survey, not by coverage map.
  • An enterprise SIM/data plan with predictable pricing (not consumer overage cliffs).
  • Tested failover behaviour during peak-hour congestion at the actual site.
  • Latency profile that holds up for the application class you'll route over it.

What we typically see

5G as a third underlay, bonded with fibre and broadband, is increasingly common in our designs for hospitality, financial branches, and federal MDAs in major cities. It's particularly strong as a fast-failover path for VoIP and video conferencing when fibre flaps. We're more cautious about 5G as a primary path; the variability between sites within the same city block is still significant.

What this means for you

5G isn't a coverage-map question anymore, it's a per-site engineering question. We survey before we commit it to the underlay mix, and we instrument it after deployment.

Related capabilitySD-WAN Deployment