vBNG is a carrier-grade, software-defined broadband network gateway. Powered by userspace packet processing, it delivers wire-speed subscriber management on commodity hardware — at a fraction of the cost of legacy chassis systems.
Proprietary hardware BNGs are expensive, inflexible, and weren't designed for today's subscriber density. vBNG was built from the ground up to change that.
Run on any x86 server with standard NICs. Choose your own hardware, swap it when you want, and stop paying license fees for features that should be standard.
A single commodity server running vBNG replaces chassis-based systems that cost 10–20x more. Reduce CapEx dramatically and eliminate per-port licensing.
Deploy updates in minutes, not maintenance windows. Roll out new features, adjust policies, and scale capacity without touching hardware or scheduling downtime.
vBNG covers the full BNG feature set — subscriber management, traffic engineering, and operational visibility — in a single platform.
Full PPPoE lifecycle — sub-second session establishment, graceful teardown, and robust keepalive. Handles tens of thousands of concurrent sessions with minimal resource overhead.
Hierarchical traffic shaping with per-subscriber rate limiting and service plan enforcement. Assign, modify, and enforce QoS policies in real time without session disruption.
Deterministic NAT with policy-driven IP pool assignment per subscriber group. Supports dynamic pool management, port allocation tracking, and full logging for regulatory compliance.
Live dashboards with per-interface and per-subscriber statistics, throughput graphs, session health indicators, and configurable alerting for proactive network management.
Full-featured web UI for session management, service plan configuration, user provisioning, and network operations. Manage your entire BNG without touching the CLI.
Fair Queuing with Controlled Delay to eliminate bufferbloat at the subscriber edge. Ensures low-latency, equitable bandwidth distribution even under heavy load conditions.
vBNG bypasses the kernel networking stack entirely. Packets are processed in userspace with DPDK-accelerated I/O, dedicating every CPU cycle to forwarding — not fighting the OS.
vBNG integrates with the protocols and systems your network already depends on. No rip-and-replace — just plug it in.
Standard RADIUS authentication, authorization, and accounting. Works with FreeRADIUS, Cisco ISE, or any RFC 2865/2866 compliant server.
SNMP v2c/v3 support for integration with existing NMS platforms like LibreNMS, PRTG, Zabbix, and Nagios.
Export traffic flow data for analytics, capacity planning, billing verification, and security forensics.
Comprehensive API for provisioning, session management, and automation. Integrate with your OSS/BSS, billing, or custom tooling.
Structured logging with configurable severity levels. Ship logs to your SIEM, ELK stack, or any syslog-compatible collector.
Event-driven notifications for session state changes, threshold alerts, and system events. Trigger automated workflows on any event.
vBNG is built around one goal: deliver consistent Quality of Experience under real load. Stable latency, low jitter, and predictable throughput during peak hours — even when the network is busy and flows compete aggressively.
That's why vBNG's traffic management isn't just rate limiting. It's queue-aware, congestion-aware, and subscriber-aware — designed to keep interactive traffic responsive while maintaining fairness across subscribers and tiers.
vBNG uses AQM to control congestion before it turns into bufferbloat and user complaints.
vBNG enforces service quality using hierarchical shaping and intelligent queueing at the broadband edge — where subscriber behavior and service tiers are known.
Traffic is classified by subscriber and session, so policies apply per-user or per service group — not just per-interface. This is what enables real fairness at scale. Every subscriber gets their own QoS context, even at 80K sessions.
Policies are enforced through a strict hierarchy: parent capacity (uplink or service group limit), per-tier shaping (package rates and burst behavior), and per-subscriber fairness — so heavy users don't distort everyone else's experience. Tiers remain tiers, and growth doesn't create chaos.
Instead of letting buffers fill until latency explodes, vBNG actively manages queues so the network stays responsive. AQM keeps queues short under load, minimizes bufferbloat, and improves interactive performance without starving bulk traffic.
vBNG avoids "blind policing" as the default because it creates retransmissions and unpredictable application behavior. Instead, shaping + AQM provides smoother outcomes and better QoE when bandwidth is contested. Policing is available where needed, but shaping is the default.
vBNG QoS is built around Classifiers — named destination groups that represent real-world traffic categories like CDNs, platforms, on-net caches, and critical services.
Each Classifier is defined by an Address List — a set of IP prefixes (/18, /24, etc.) that match specific destinations. A subscriber's Plan then applies a Default Rate for all unmatched traffic, plus optional per-Classifier rate overrides for traffic matching those destination lists.
This lets you express business intent cleanly — not just bandwidth caps, but differentiated service based on traffic destination.
"Premium users get normal speed for general internet, but much higher speed to YouTube and Google CDNs."
"Local on-net cache traffic should not be bottlenecked by the subscriber's plan."
"Critical services get guaranteed headroom even when general traffic is capped."
Everything else stays at 10 Mbps — traffic to matched destinations can shape up to 50 Mbps.
See how a modern software-defined approach stacks up against traditional chassis-based systems.
| Legacy Hardware BNG | vBNG ✦ | |
|---|---|---|
| Deployment Model | Proprietary chassis + line cards | ✓ Any x86 server |
| Subscriber Scale | Depends on chassis / license tier | ✓ 80K+ per node |
| Throughput | ASIC-dependent, fixed capacity | ✓ 800G line-rate |
| Per-Subscriber QoS | Limited by hardware queues | ✓ Software-defined, unlimited |
| Policy Updates | Maintenance windows required | ✓ Real-time, hitless |
| Vendor Lock-In | Full stack proprietary | ✓ Open, commodity hardware |
| Cost Model | High CapEx + per-port license | ✓ Software subscription |
| Management | CLI-centric, vendor-specific | ✓ Web UI + REST API |
| Feature Updates | Major release cycles (6–12 months) | ✓ Continuous delivery |
| Capacity Expansion | New line cards / chassis | ✓ Add CPU cores or nodes |
Switching from legacy hardware BNG to vBNG isn't just a technical upgrade — it's a financial one. Here's where the savings come from.
Replace purpose-built chassis systems with commodity x86 servers. A single 1RU server running vBNG handles what used to require a multi-slot chassis with proprietary line cards.
Legacy BNG vendors charge per-port and per-feature licenses that scale with your subscriber base. vBNG uses a simple software subscription with no per-subscriber penalties.
Web-based management, automated provisioning, and real-time monitoring mean fewer engineer-hours spent on routine BNG operations and maintenance windows.
When you need more capacity, add CPU cores or deploy another node. No new chassis purchases, no re-cabling, no multi-week lead times.
Getting started with vBNG is straightforward. No months-long integration projects, no professional services required.
Set up a standard x86 server with DPDK-compatible NICs. Any server vendor works — Dell, HPE, Supermicro, or white-box. Install the base OS and vBNG packages.
Define your subscriber-facing and upstream interfaces through the web UI or API. Configure VLANs, IP pools, and NAT policies. Import your existing service plans.
Point vBNG at your existing RADIUS server for authentication and accounting. Standard RFC 2865/2866 — no custom attributes required for basic operation.
Migrate subscribers gradually or all at once. vBNG handles PPPoE discovery immediately. Monitor session health and throughput in real time from the dashboard.
Whether you serve a town or a region, vBNG grows with you. Add CPU cores for more sessions. Add nodes for redundancy. No forklift upgrades, no re-licensing.
From regional fiber operators to large-scale broadband providers, vBNG adapts to your topology and subscriber base.
Manage dense subscriber populations with per-user QoS, real-time traffic shaping, and instant service plan provisioning. Handle peak-hour traffic without overprovisioning hardware.
Consolidate multiple legacy BNGs into a single vBNG node. Reduce operational complexity and CapEx while gaining centralized management and real-time monitoring.
Deploy vBNG at the network edge for PPPoE termination over wireless last-mile links. Lightweight enough for distributed WISP architectures, powerful enough for growing subscriber bases.
Replace aging Cisco, Juniper, or Huawei BNG chassis with a software-first approach. vBNG supports standard PPPoE and RADIUS workflows for seamless cutover with minimal disruption.
The numbers and protocols that matter to your engineering team.
vBNG runs on standard x86 servers. Here's what we recommend for optimal performance.
Purpose-built, production-ready servers optimized and validated for vBNG. Pre-loaded with vBNG software, tested under load, and shipped ready to deploy — just rack, connect, and go live.
vEngine was founded by ISP operators who spent years wrestling with legacy networking equipment. We got tired of paying six-figure license fees for features that should be standard — so we built the alternative ourselves.
We understand the operational realities of running a broadband network because we've done it. vBNG isn't designed in a vacuum — every feature exists because we needed it in production. That's why vBNG handles the things that matter to ISPs: subscriber scale, traffic control, operational simplicity, and cost efficiency.
Technical depth over marketing polish. We solve real networking problems.
Every feature is battle-tested on live subscriber traffic before release.
Talk to the engineers who built vBNG — not a call center script.
Standard protocols, commodity hardware, no proprietary lock-in.
High-performance networking software for internet service providers.
Common questions from ISP engineers and network architects evaluating vBNG.
vBNG supports PPPoE for subscriber access. PPPoE is the industry standard for broadband subscriber authentication and session management, covering the vast majority of FTTH, DSL, and fixed wireless deployments.
vBNG doesn't replace your RADIUS server — it works with it. vBNG acts as a RADIUS client, authenticating subscribers against your existing RADIUS infrastructure (FreeRADIUS, Cisco ISE, etc.) using standard RFC 2865/2866. Your existing RADIUS setup, user databases, and accounting workflows stay exactly as they are.
vBNG supports active-standby redundancy at the node level. Session state can be replicated to a standby node for fast failover. Additionally, the control plane supports hot restart for maintenance scenarios — the data plane continues forwarding traffic while the control plane reinitializes.
vBNG implements hierarchical QoS entirely in software, using efficient data structures for token bucket and AQM. Because there are no hardware queue limitations, every subscriber gets their own QoS context — even at 80K sessions. Policies can be updated per-subscriber in real time without affecting other sessions.
You need a DPDK-compatible NIC, which includes most modern Intel and Mellanox network adapters. We recommend Intel X710/XXV710 or Mellanox ConnectX-5 and above for production deployments. No proprietary ASICs, FPGAs, or smart NICs required.
Absolutely. vBNG uses standard PPPoE and RADIUS — the same protocols your current BNG uses. You can migrate subscribers in batches by re-pointing access network VLANs to the vBNG node. Many customers start with a subset of subscribers and expand once they're comfortable with the platform.
All vBNG subscriptions include direct engineering support. You'll talk to the engineers who built the product — not a tiered support center. We offer onboarding assistance, deployment planning, and ongoing technical support tailored to ISP operations.
Get a personalized demo from the engineering team behind vBNG. We'll walk through your network, size the deployment, and answer every technical question.