Flock Networks’ core product is Flock Internet Routing Engine（FIRE）, positioned as a next-generation IP routing suite. It is not a general-purpose developer SaaS product, but a low-level software component for network appliances, SD-WAN, carrier routers, and control-plane teams. The official site emphasizes that the source code can be licensed, allowing customers to quickly build customized networking devices on top of it.
FIRE is written entirely in Rust, with memory safety, stability, and performance as its main selling points. According to the official site, it has been running in production for more than four years, deployed on thousands of hardware devices and virtual machines, with no crashes or memory leaks reported. Its architecture uses thread pools and is designed to scale linearly with the number of router CPU cores. One example performance figure claims that with 4 logical CPU cores, it can send 1 billion BGP route updates to 1,000 BGP neighbors within 90 seconds after startup.
FIRE provides platform-independent APIs and allows components to be mixed and matched to build products. Deployment options include hardware, virtual machines, and containers. Supported systems include Linux, SONiC, FreeBSD, Redox, or the customer’s OS of choice; supported hardware architectures include x86, ARM, and RISC-V. Its functional ecosystem covers BGP, BFD, OSPFv2/v3, MPLS, Segment Routing, Telemetry, VPN, Static Routing, and more. It can be used for BGP Route Server, Route Reflector, CPE/P/PE Router, PCE, network monitoring nodes, and similar scenarios.
The official site does not disclose pricing, licensing terms, or SLA details. It only states that the FIRE source code can be licensed, and that production-grade supported software requires contacting the team by email. Documentation includes a brochure, white paper, flockd user guide, and a Debian demo package; the demo is explicitly for sample purposes only and should not be used in production. Overall, the documentation is fairly technical, but the crawled content does not show a complete API reference.
Its strengths include Rust-based safety, multi-platform deployment, source-code licensing, and clearly defined network protocol coverage. Its drawbacks are opaque pricing, unclear closed-source/open-source status, source-code licensing only, and a high learning curve. It is suitable for network equipment vendors, SD-WAN teams, and carrier-grade product teams with networking protocol expertise, but not for ordinary application developers.
Access and payment information for China is not disclosed, and direct connectivity to the official site is unknown. If you need open-source alternatives, consider evaluating FRRouting, BIRD, OpenBGPD, or solutions from the SONiC ecosystem.
⚠ This review is compiled from public sources and does not constitute a purchase recommendation. Verify all facts on the vendor's official site. Verify on flocknetworks.com official site.
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