Short answer
FirstNet DIA gives you uncontended, symmetric, committed bandwidth with SLA-backed performance and engineered international routing. Business broadband is shared and best-effort, with SLAs set by the last-mile provider.
In detail
Side by side:
- Contention: DIA has dedicated 1:1 contention on local and international traffic; broadband may be contended, although FirstNet business fibre is uncontended on local on-net traffic.
- Bandwidth: DIA is symmetric and committed and does not degrade at peak; broadband throughput can vary with wider internet conditions.
- Performance: DIA is engineered for predictable latency, jitter and packet loss.
- Service levels: DIA has defined SLAs with service credits aligned to the carrier; broadband carries best-effort, last-mile SLAs.
- Delivery: DIA runs over approved fibre as a Layer 3 service into the FirstNet core, with static public IP addressing and enterprise routing.
DIA suits core sites, head offices, data centres and hubs where downtime has material impact. Broadband is ideal for branches and as a cost-effective backup to DIA. Many organisations combine the two: DIA at the head office or SD-WAN hub, broadband at branches, and broadband failover behind the DIA for layered resilience.
Source: FirstNet Dedicated Internet Access service page →
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