Carrier Aggregation
Bond multiple last-mile links — fibre, broadband and LTE/5G from different carriers — into one resilient pipe with sub-second failover. Sessions survive individual carrier failures while aggregated throughput boosts capacity for remote and branch sites.
Overview
Relying on a single ISP for your business internet means accepting carrier maintenance windows, fibre cuts, and congestion patterns as your own. Carrier Aggregation combines two or more independent internet connections — from different ISPs, on different last-mile technologies — into a single, bonded link that delivers combined throughput and automatic failover. If one carrier goes down, traffic shifts to the remaining links without dropping active sessions. Applications see a single, resilient connection with higher aggregate bandwidth than any one circuit provides alone.
Clevertek scopes every engagement to your environment — capacity, sites, compliance and support model — so you get a tailored plan rather than a fixed SKU. Pricing is quote-only, and our solutions architects will work through your requirements before any proposal.
Our approach
We deploy and manage bonded internet solutions that combine multiple carrier circuits into one logical link. Using session-aware load-balancing appliances, we distribute traffic across the available circuits based on real-time latency, utilisation, and application sensitivity. We handle carrier selection, CPE deployment, bonding configuration, and ongoing monitoring — so your business gets carrier-diverse, high-availability internet without managing multiple ISP relationships or complex routing policies.
Why work with us
Carrier-diverse resilience
Two or more ISPs on different physical paths and last-mile technologies — a fibre cut from one carrier does not affect the others.
Session-aware bonding
Active sessions stay active during failover. VoIP calls, VPN tunnels, and cloud application sessions do not drop when a carrier link goes down — stateful failover preserves established connections.
Combined throughput
Bonded links deliver aggregate bandwidth close to the sum of individual circuits — a 100 Mbps DIA + 100 Mbps LTE link delivers ~200 Mbps without per-flow bottlenecks.
Automatic traffic steering
Real-time latency and utilisation metrics steer each flow to the optimal link. Latency-sensitive traffic (voice, video) uses the lowest-latency path; bulk traffic uses the highest-capacity.
Single management interface
All carrier circuits visible in one dashboard — utilisation per link, failover history, per-application traffic distribution.
Compatible with any carrier mix
DIA + LTE/5G, fibre + fixed wireless, or multiple fibre ISPs — bonding works across different technologies and providers.
Key benefits
What this solution delivers for your business.
Near-zero downtime from carrier outages
A single carrier failure drops to zero active sessions — other links absorb the traffic within seconds. Your internet does not depend on any one ISP reliability.
Higher throughput without premium circuits
Combining two mid-tier circuits can deliver more aggregate bandwidth than a single premium circuit at lower total cost.
No maintenance-window downtime
Each carrier has different maintenance windows. Traffic shifts to the other links during one carrier maintenance — your business stays online.
Cost-effective bandwidth growth
Add a second circuit to an existing deployment instead of upgrading to a more expensive single circuit — lower incremental cost for the same capacity gain.
Simplified WAN architecture
One bonded link replaces complex per-ISP routing policies, BGP multi-homing, and separate failover scripts. The appliance handles it automatically.
Measurable SLA improvement
Combined circuit availability regularly exceeds 99.99% — even when individual carriers deliver 99.9% each.
What's included
Part of this managed service.
Multi-carrier bonding
Combines 2-4 independent circuits into one logical link with session-aware traffic distribution.
- 2-4 carrier support
- Session-aware failover
- Per-packet or per-flow bonding
- Stateful connection preservation
Automatic failover
BGP-based or appliance-driven failover with sub-second detection and session preservation.
- <1 second failover detection
- Session preservation
- Automatic re-balance on recovery
- No active session drops
Application-aware steering
Traffic distributed across links based on latency, utilisation, and application sensitivity.
- Real-time latency measurement
- Per-application routing policies
- Voice/video prioritisation
- Bulk transfer scheduling
Unified monitoring dashboard
Single view showing per-link utilisation, latency, failover events, and application traffic distribution.
- Per-link utilisation
- Failover event log
- Latency trending
- Per-application traffic split
Multi-technology support
Works with any combination of DIA, LTE/5G, fixed wireless, satellite, or fibre.
- DIA + LTE/5G
- Fibre + fixed wireless
- Multiple fibre ISPs
- Mix of speeds (10 Mbps - 1 Gbps)
Where it helps
Real-world scenarios where this solution delivers measurable outcomes.
Business-critical office
Combine a fibre DIA circuit with an LTE backup into a single bonded link — double the throughput for normal operations, automatic failover to LTE when fibre drops.
Branch with unreliable connectivity
Deploy dual-carrier aggregation in locations with historically unreliable single-carrier service — two different ISPs on different technologies.
Temporary or event connectivity
Bond multiple LTE/5G connections for pop-up offices, construction sites, or event venues where fibre is not available — combined throughput without carrier dependency.
Cost-sensitive growth
Start with a single DIA circuit, add a second lower-cost LTE link for aggregation when bandwidth needs grow — avoiding a jump to a significantly more expensive single circuit.
Questions buyers actually ask
Does this work with any two internet connections?
Yes — DIA, LTE/5G, fixed wireless, or satellite. The bonding appliance accepts any IP-based circuit regardless of last-mile technology or carrier.
Will my VPN stay connected during failover?
Yes. Session-aware failover preserves established connections, including VPN tunnels, VoIP calls, and cloud application sessions. Active sessions do not drop during a carrier failover.
Do I need special CPE?
Yes. A bonding appliance is deployed at your site to manage traffic distribution and failover. We supply, configure, and manage the appliance as part of the service.
Can I use existing internet circuits or do I need new ones?
Existing circuits can be used. We assess the current setup and integrate existing ISP connections alongside new ones — no need to terminate existing contracts prematurely.
What bandwidth can I achieve?
Aggregate throughput is close to the sum of individual circuit bandwidths, with a small overhead for bonding headers. A 100 Mbps + 100 Mbps bond typically delivers 190-195 Mbps usable throughput.
Ready to scope a solution?
Talk to a Clevertek solutions architect about your requirements — no obligation.