Does migrating from RtBrick BNG mean changing my RADIUS, billing or access network?

No. GridM BNG drops into the same position in the topology, uses the same RADIUS and billing stack (with CoA), and interoperates with your existing OLTs, DSLAMs, switches and wireless access. Migrations run in parallel with the incumbent and move subscribers in slices.

How does GridM licensing compare with RtBrick BNG?

GridM BNG is one plan with every feature included, priced per subscriber: a flat ₹2 per subscriber per month in India, or US$0.10 per subscriber per month elsewhere, with no hardware markup. RtBrick licensing varies by platform and typically involves the model described in the table above; verify current terms with the vendor for your configuration.

How long does a migration from RtBrick BNG take?

Typical parallel-run migrations complete in weeks: stand up the cluster, validate a test VLAN against production traffic, then move subscribers VLAN by VLAN or POP by POP in normal maintenance windows. The incumbent stays as rollback until you decommission it.

Honest comparison · 2026

GridM BNG vs RtBrick BNG

RtBrick Full Stack (RBFS) is a disaggregated network operating system productized as a BNG that runs as a container on Open Network Linux on white-box switches with Broadcom merchant silicon. Both GridM and RtBrick reject the proprietary chassis; this comparison looks at the very different paths they take, x86 servers versus switch hardware, and what each includes in the price.

GridM BNG

Cloud-native software BNG

RtBrick BNG

Incumbent platform

Side by side

GridM BNG vs RtBrick BNG: the decision factors

Factor

GridM BNG

RtBrick BNG

Architecture

Disaggregated software BNG on commodity x86

Disaggregated BNG (RBFS) as a container on ONL white-box switches with Broadcom ASICs

Hardware

Any OEM or white-box server, merchant NICs

OCP-compliant 1RU/2RU ODM switches (for example UfiSpace, Edgecore); not general x86 servers

Scaling model

Horizontal scale-out, add nodes with ECMP

Scale by adding switches; ASIC line-rate forwarding per device

Licensing

One plan, all features; ₹2/sub in India, $0.10/sub globally

Per subscriber network-wide plus a base license per switch; Essentials or Benefits tiers; CGNAT licensed per subscriber as an add-on

Deployment options

Bare metal, VM, containers or Kubernetes

Bare-metal white-box switches, on-prem

Upgrades

In-service software upgrades, canary per node

Container image upgrades with redundancy designs for continuity

Management & APIs

One central web console, cluster-wide, plus a REST API for billing

API-driven with the RBMS management system and CLI, built for telco automation

Observability

Real-time per-subscriber analytics, built into the console

Telemetry exported to an external monitoring stack; per-subscriber analytics depth varies

CGNAT and IPv6

Integrated CGNAT + native dual-stack IPv6, included

CGNAT as a separately licensed function; IPv6 supported

Cost model

Pay as you grow on commodity hardware

Switch hardware plus per-switch and per-subscriber licenses and tier upgrades

Vendor information is indicative, compiled from publicly available sources, and may change without notice. Product capabilities, licensing models and pricing vary by platform, software release and region. Verify current details with the respective vendor. Cisco, Juniper, Nokia, MikroTik, BISON Router, 6WIND, IPACCT, netElastic, VAS Experts, Accel-PPP, DANDY NETWORK and RtBrick are trademarks or project names of their respective owners; GridM is not affiliated with or endorsed by them.

Why operators choose GridM

Runs on any x86 server from any OEM; no dependence on specific white-box switch ODMs or ASIC platforms
One plan with every feature: no Essentials/Benefits tiers, no per-switch base license, CGNAT never an add-on
One central web console for the whole cluster, with DDoS protection, flow analytics and IPDR compliance built in
Session-synced N+1 failover and flat per-subscriber pricing

Where RtBrick shines

RtBrick is a pioneer of telco-scale BNG disaggregation on merchant-silicon switches, with a microservices architecture, strong automation and API pedigree, the ability to run BNG, CGNAT and a full-table IP/MPLS router on one device, and proven deployments at large carriers.

We believe in honest comparisons. Pick what fits your network; when the criteria are cost per subscriber, automation and freedom from lock-in, we are confident in GridM.

The verdict

RtBrick is the right fit for carriers standardizing on merchant-silicon white-box switches and API-driven automation at very large scale, especially where one device must also be an MPLS router. GridM BNG is the simpler path for operators who want a carrier-grade BNG on ordinary servers they already know how to buy, with everything included in one per-subscriber plan and the whole cluster run from one console.

Request a demo Explore GridM BNG

FAQ

Switching from RtBrick BNG: your questions

For the BNG/BRAS role, yes. GridM BNG terminates PPPoE and IPoE subscribers, enforces per-plan QoS, speaks RADIUS with CoA and provides CGNAT and dual-stack IPv6, the functions operators deploy RtBrick BNG for at the broadband edge. Routing and other roles RtBrick platforms may also serve are evaluated separately in your design.

Compare GridM BNG with others

vs Cisco BNG vs Juniper MX BNG vs Nokia 7750 BNG vs MikroTik vs Legacy hardware BRAS vs BISON Router vs 6WIND vBNG vs IPACCT vs netElastic vBNG vs VAS Experts Stingray SG vs Accel-PPP vs Dandy vBNG

Planning a move from RtBrick?

Bring your topology to a demo. We will map the migration path, the hardware bill and the payback period with you.

Request a demo Talk to sales

Runs on your hardware · One plan, every feature · Migrate in slices