Does migrating from Accel-PPP 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 Accel-PPP?

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. Accel-PPP 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 Accel-PPP 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 Accel-PPP

Accel-PPP is the open-source PPPoE, IPoE, L2TP, PPTP and SSTP server that many ISPs start with on Linux. It is free, well understood and battle-tested. This comparison looks at what a purpose-built, commercially supported software BNG adds when a network outgrows a do-it-yourself Linux BRAS.

GridM BNG

Cloud-native software BNG

Accel-PPP

Incumbent platform

Side by side

GridM BNG vs Accel-PPP: the decision factors

Factor

GridM BNG

Accel-PPP

Architecture

Disaggregated software BNG on commodity x86

Open-source PPP/IPoE server using Linux kernel networking

Hardware

Any OEM or white-box server, merchant NICs

Any Linux server

Scaling model

Horizontal scale-out, add nodes with ECMP

Scale up per server within kernel forwarding limits; multi-server designs are do-it-yourself

Licensing

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

Free and open source (GPL); support is community or self-provided

Deployment options

Bare metal, VM, containers or Kubernetes

Linux, bare metal or VM

Upgrades

In-service software upgrades, canary per node

Package or source upgrades with a service restart

Management & APIs

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

Configuration file plus a telnet-style CLI; scripting is do-it-yourself

Observability

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

Session logs (file, remote or PostgreSQL); per-subscriber analytics need external tools

CGNAT and IPv6

Integrated CGNAT + native dual-stack IPv6, included

IPv6 supported; CGNAT via a separate Linux netfilter/nftables setup and logging

Cost model

Pay as you grow on commodity hardware

Zero license cost; operations, HA and tooling are engineering time

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

A kernel-bypass data plane that forwards at line rate on commodity NICs
CGNAT with deterministic port blocks and IPDR logging built in, no netfilter engineering
N+1 clusters with session sync and hitless failover instead of single-server BRAS boxes
One central web console with DDoS protection, flow analytics and compliance workflows, commercially supported

Where Accel-PPP shines

Accel-PPP costs nothing to license, has a large community and years of production use, supports PPPoE (with TR-101), IPoE, L2TP, PPTP and SSTP with RADIUS authentication, accounting and CoA, and ships a built-in tbf/htb shaper. For a small network with Linux skills in-house, it is hard to beat on price.

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

Accel-PPP is the right tool for a small ISP with Linux skills and a tight budget, and many good networks were built on it. When subscriber counts, throughput, uptime and lawful-compliance expectations rise, GridM BNG replaces the do-it-yourself stack with a supported product: line-rate forwarding, clustering, built-in CGNAT, DDoS, analytics and compliance, on a simple per-subscriber plan. Migration is straightforward because both speak standard RADIUS.

Request a demo Explore GridM BNG

FAQ

Switching from Accel-PPP: 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 Accel-PPP for at the broadband edge. Routing and other roles Accel-PPP 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 Dandy vBNG vs RtBrick BNG

Planning a move from Accel-PPP?

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