SC//Connect™ Link Balancer

Standard link balancers operate at Layers 3 or 4, giving them limited capabilities for proactive performance enhancements and business continuity. SC//Connect Link balancer operate at Layer 2, and can intervene on higher Layers as well, all the way to Layer 7 - the Application Layer. This range of action sets the SC//Connect Link Balancer apart as a next generation link balancer. In addition to its firewall and site-to-site VPN features, the SC//Connect Link Balancer can balance inbound traffic, support geographic redundancy deployments, prioritize application traffic, and much more.

The SC//Connect Link Balancer can be deployed without any reconfiguration to your firewall. Connect it between your ISP router and firewall, power it up, and we will do the rest remotely.

You do not have to change your existing router or firewall, but in many cases there is an opportunity to retire obsolete network appliances.

Yes. SC//Connect Link Balancer is built on the proven ELFIQ® platform, delivering the same trusted performance and advanced link balancing capabilities used by Elfiq customers worldwide.

It continues to support demanding use cases like high-bandwidth environments, application hosting, and multi-site network redundancy—leveraging unique capabilities such as inbound traffic management and geographic failover.

As part of Scale Computing’s SC//Connect portfolio, it extends that legacy into modern environments with flexible deployment options and stronger alignment to today’s distributed IT infrastructure—while remaining a powerful, standalone appliance for a wide range of link load balancing scenarios.

For existing Elfiq customers, it’s the same technology you trust—now part of a broader platform designed for the future.

Yes, the SC//Connect Link Balancer provides the flexibility to scale by simply adding additional links to get more speed as it can leverage any inexpensive broadband internet connection.

Based on your current and future bandwidth requirements, and on the types of ports you require, our team will recommend the right appliance for you.

Licenses go from 100Mbps to 40Gbps. Prorated license fees may apply when the additional site bandwidth goes into a higher license tier.

Link balancing distributes WAN/ISP traffic across multiple links to increase capacity and resilience at the network edge, for both outbound and inbound flows. Load balancing (or server load balancing) distributes application traffic across servers inside a data center. They solve different problems and often complement each other.

The SC//Connect Link Balancer increases available bandwidth by adding up multiple links and steering sessions across the best paths. This protects throughput from latency and congestion, improving real-world performance for voice, video, and SaaS—often more effectively than buying extra bandwidth.

Yes, the SC//Connect Link Balancer enhances inbound access with Intelligent DNS and Service Verification. It directs remote users to the best live link, keeping VPN and hosted services responsive even during congestion or outages, without changing your firewall or VPN platform.

Link balancing solves access reliability and capacity; SD-WAN adds centralized overlays. Many start with SC//Connect Link Balancer to stabilize their internet performance, then layer SD-WAN for multi-site control. Both can complement each other for full flexibility.

Size by combined bandwidth, number of links, and peak sessions, but make sure to leave room for growth! SC//Connect LinkBalancer platforms scale easily with high session counts and multiple ISP links, so you can expand without redesigning.

Different types of traffic require different types of networks. While broadband internet is generally the best option for cloud traffic, MPLS is still a tried and true technology when it comes to wide area networks. SC//Connect Link Balancer solutions can support and balance traffic on multiple broadband and MPLS links concurrently.

The SC//Connect Link Balancer can help you facilitate your transition away from MPLS before the end of your contract. Since our Link Load Balancers can handle internet and MPLS simultaneously, you can start deploying your SC//Connect Link Balancer right away, and simply move all your traffic over when the contract ends.

SC//Connect Link Balancer Central provides secure, role-based access to online reports. You can easily track network incidents for each of your links, at every one of your sites, obtain reports on bandwidth consumption, and even see the breakdown by application (option). Monthly email reports provide insight on link uptime, outages prevented, and top applications by bandwidth usage.

Bandwidth is the maximum capacity of a link; throughput is the actual data delivered under real-world conditions. Throughput is affected by latency, jitter, and packet loss. SC//Connect Link Balancer improves real-world throughput by aggregating multiple ISP links and steering sessions across the healthiest path, reacting to live link conditions.

The SC//Connect Link Balancer maintains uptime by failing over sessions to healthy links in real time. It monitors link health and steers sessions away from failing ISPs. New sessions will no longer be sent to a bad link until it’s back online and healthy. High-availability and LAN failsafe add extra resilience, minimizing downtime from outages or brownouts.

In the event that the SC//Connect Link Balancer appliance becomes unresponsive or loses power, it goes into passthrough mode to prevent any interruption to your business.

Note that while the unit is in this mode, optimization features are unavailable.

Yes. Two SC//Connect Link Balancers can be deployed in an Active-Passive configuration. If the Active unit becomes unresponsive, traffic is transferred to the Passive unit to ensure business continuity. Book a live demo to learn more.

All SC//Connect Link Balancers support LTE, 4G, 3G through delivered over USB modems.

SC//Connect Link Balancer identifies thousands of applications and services, and applies QoS, allowing critical services like voice and video to get priority. Low-priority traffic is shaped during congestion, ensuring business apps stay responsive.

The SC//Connect Link Balancer uses session-based steering instead of per-packet bonding, avoiding reordering and slow-link drag. Each session stays on one healthy link, while many sessions spread across all links for aggregate capacity. This ensures consistent performance without packet reassembly.

Yes, SC//Connect Link Balancer is transparent thanks to its Layer-2 design, so you keep your current firewall, IP plan, and routing. It can mix private and public links, letting you evolve to a hybrid network without renumbering or forklift upgrades.