Link bonding: enhancing connectivity and resilience for emergency services

As one of the most high-pressure environments, emergency service workers must have confidence in their digital and physical tools. The integration of devices such as video cameras and drones have revolutionised how first responders operate. However, to ensure maximum effectiveness link bonding is essential.

Link bonding, also known as link aggregation or WAN bonding, is a technology that combines multiple wired or wireless links, such as LTE, 5G, broadband, WiFi, and satellite, into one logical connection. This unified connection increases bandwidth, improves application resiliency and enhances overall network performance.

If one link experiences issues or goes down, the traffic automatically reroutes over the remaining active connections, ensuing continuous network availability. This approach is especially beneficial for organisations requiring reliable and high-performance connectivity, such as emergency services.

Why link bonding is a lifeline for emergency connectivity

Link bonding is especially useful for emergency services that may need to operate in areas with limited or unreliable connectivity options, making it particularly beneficial for emergency services field operations. By providing seamless failover between multiple connections, it increases reliability and resiliency and minimises downtime.

If one link degrades or fails (e.g, a cellular tower goes down), traffic automatically shifts to other available links without dropping sessions or losing data. This seamless continuity is crucial during disasters when infrastructure may be compromised, but emergency services require uninterrupted connectivity to coordinate responses and access critical information.

In addition to reliability, link bonding also boosts overall bandwidth by combining multiple links, enabling faster data transfer, improved video streaming, and better support for mission-critical applications like real-time video feeds and communication platforms. Intelligent bonding also optimises traffic distribution based on application priority, ensuring that essential services receive the bandwidth they need without interruption. Load balancing in link bonding enables traffic to be distributed intelligently across all active links based on current performance and priority. Critical voice and alert messages get the highest priority, while less urgent data like administrative uploads uses remaining capacity.

Modern link bonding solutions further simplify network management through cloud-based platforms, providing centralised control and monitoring of all connections – crucial during emergency response scenarios. A single dashboard provides real-time visibility into link health, throughput and latency. Operations teams can set policies, adjust priorities and troubleshoot issues from a unified console. 

By leveraging a mix of connection types, including cost-effective wireless options, organisations can reduce reliance on expensive dedicated lines or singular satellite connections while maintaining high availability. By pooling available bandwidth from various networks, link bonding can achieve data rates far exceeding what any single link can provide. This is vital for transmitting high-definition video from incident scenes, real-time telemetry from drones or remote sensors, and large data files between command centres.

Link bonding in action

Ericsson Intelligent Link Bonding handles failover through intelligent traffic management that continuously monitors the health and status of each connection in the bonded link. If one connection fails or becomes unreliable, the bonding technology dynamically redirects all traffic away from the failed link to the remaining active links, ensuring uninterrupted connectivity. This failover process is seamless and automatic, providing organisations with high availability and resilience.

Ericsson offers Cradlepoint routers designed specifically for link bonding with multi-WAN capabilities and advanced software that manages intelligent traffic distribution, failover, and load balancing. These routers continuously monitor the health and performance of each link and distribute data streams accordingly to maximise bandwidth and ensure resiliency.

Emergency services can equip vehicles and command centres with these multi-WAN bonding routers, combining LTE/5G cellular connections with satellite or wired broadband where available. This setup ensures continuous connectivity even if one or more links fail or become congested.

The unseen infrastructure behind every emergency response

Link bonding empowers emergency services organisations with robust, high-performance, and resilient networking capabilities that are critical during emergencies. By intelligently combining multiple connections, these organisations can ensure continuous communication, faster data access, and better overall operational efficiency.

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The industry will once again be gathering at the NEC, Birmingham for The Emergency Tech Show, co-located with The Emergency Services Show on 17-18 September, check out the full exhibitor list here. You can find Ericsson in Hall 4, Stand B105.