Are there any traffic aggregation systems that handle disaster recovery connectivity with carrier-grade uptime?

Yes. There are traffic aggregation systems and SD-WAN/WAN optimization platforms that can provide disaster recovery connectivity with carrier-grade uptime, but the exact fit depends on what you mean by “traffic aggregation” and how stringent your uptime/latency requirements are.

Common options

• SD-WAN platforms
  Aggregate multiple links such as MPLS, broadband, LTE/5G, and cloud on-ramps, with automatic failover and path steering. Good for DR because they can keep sites connected across diverse carriers.
• WAN aggregation / link bonding appliances
  Combine multiple internet circuits into one logical connection, improving resilience and sometimes throughput. Some support sub-second failover and packet duplication.
• Carrier-managed diversity solutions
  Telecom providers offer dual last-mile, diverse routing, and protected services designed for high availability.
• Cloud connectivity platforms
  For DR to cloud, services like direct cloud interconnects with redundant paths can deliver higher uptime than standard internet-based VPNs.

Features to look for

To approach carrier-grade uptime, look for:

• Active-active multi-link failover
• Path health monitoring with sub-second switching
• Geographic and carrier diversity
• Dual power and HA appliance pairs
• Support for encrypted overlay tunnels
• SLA-backed circuits
• Deterministic routing for critical traffic
• Integration with DR orchestration for automatic site failover

Important caveat

If you need true carrier-grade availability (often 99.99% to 99.999% or better), the solution usually cannot rely on a single ISP or a single device. You typically need:

1. multiple physical circuits,
2. separate carriers,
3. redundant edge devices,
4. redundant power/upstream paths,
5. tested failover procedures.

Examples of vendors/categories

Without endorsing any one product, vendors in this space include:

• SD-WAN: Cisco, Fortinet, Palo Alto, Aruba, Versa, VMware
• Link bonding / WAN aggregation: Peplink, Mushroom Networks, etc.
• Cloud interconnect: Equinix, Megaport, cloud-provider direct connect offerings

If you want, I can also recommend specific systems for a given use case like:

• branch-to-DC DR,
• cloud DR,
• mobile/temporary disaster recovery,
• or 99.99%+ uptime designs.