From subscriber port
to IP core — open.
OcNOS-SP delivers carrier-grade broadband aggregation, per-subscriber HQoS, and SR-MPLS middle-mile transport on open hardware — without the proprietary hardware tax.
Every subscriber deserves carrier-grade routing. Not every ISP should pay carrier-grade prices for it.
OcNOS-SP runs the complete broadband routing stack — OLT aggregation, middle-mile SR-MPLS transport, and BGP full-table internet edge — on open whitebox hardware at 60–70% lower CAPEX than proprietary chassis.
Deep-buffer merchant silicon absorbs gigabit PON microbursts without packet drops. Hierarchical QoS shapes per-subscriber SLAs at line rate. SR-MPLS connects edge aggregation to the core. All from one NOS — and one support contract.
Broadband & Access is the subscriber edge.
OcNOS-SP at the access layer hands off to the SP core and metro via the same NOS. Middle-mile traffic can traverse IPoDWDM optical transport on the same platform.
OcNOS-SP stretches every grant dollar further.
Operators building with BEAD or similar federal broadband funding can reduce routing CAPEX by 60–70% on OcNOS-SP versus proprietary chassis — reaching significantly more unserved locations within the same budget envelope.
From internet to subscriber — one platform.
Hover each node for role, protocol, and platform details. Traffic flows right to left: internet peering → middle mile → aggregation → subscriber edge.
Hover nodes for capability and platform details · Scroll or pinch to zoom
Which part of the access network are you building?
Select your deployment scenario to see specific protocol capabilities, platform recommendations, and architecture guidance.
Scale gigabit PON without dropping packets on microbursts.
FTTx networks generate intense burst traffic from OLT uplinks — modern XGS-PON OLTs push 10G uplinks with highly variable burst profiles. Shallow-buffer commodity switches drop packets under these conditions. OcNOS-SP on deep-buffer Broadcom Qumran silicon absorbs those microbursts at line rate, while HQoS enforces per-subscriber SLA agreements across thousands of simultaneous sessions.
Hierarchical QoS (HQoS)
Per-subscriber traffic shaping and scheduling at line rate. Enforce tiered broadband plans (100M, 500M, 1G) without an external policy server — directly on the aggregation router with no performance penalty.
EVPN-VXLAN Aggregation
Multi-tenant L2 ring modernization using EVPN-VXLAN. Isolate residential, business, and wholesale traffic on the same physical aggregation infrastructure — no forklift of existing OLT hardware.
Deep-Buffer Merchant Silicon
Broadcom Qumran-class deep-buffer silicon handles PON microburst profiles without tail-drop. Critical for maintaining SLA compliance across gigabit subscriber plans during peak load.
FTTx Aggregation Platforms
OcNOS-SP on open hardware replaces proprietary BNG and aggregation chassis at 60–70% lower CAPEX. For a 50,000-subscriber FTTx build, that difference in aggregation infrastructure cost alone can reach seven figures.
Dynamic routing built for wireless backhaul variability.
Wireless backhaul introduces capacity variability that wired-only routing designs weren't built for. Link capacity shifts with weather, interference, and modulation adaptation. OcNOS-SP handles WISP aggregation with fast failover BFD, ECMP load balancing across multiple uplinks, and deep buffers that prevent drops when capacity temporarily dips.
BFD Sub-50ms Failure Detection
Bidirectional Forwarding Detection detects link failures in under 50ms — critical when wireless links flap during weather events. Traffic reroutes instantly across ECMP uplinks before subscribers notice.
ECMP Across Multiple Wireless Links
Equal-Cost Multipath distributes traffic across multiple wireless backhaul uplinks, maximising aggregate throughput and providing resilience when individual links degrade.
A typical WISP POP runs OcNOS-SP MPLS license on an Edgecore or UfiSpace compact aggregation platform: BGP to upstream, ECMP across wireless uplinks, HQoS enforcing subscriber plans. Single support contract covering both NOS and hardware.
Connect the access edge to the core — optionally without a standalone DWDM system.
Middle-mile networks bridge aggregation POPs to the IP core or peering point, often over long fiber runs. OcNOS-SP handles this with SR-MPLS traffic engineering for resilient multi-path transport, MPLS L2/L3 VPNs for multi-operator or wholesale connectivity, and optional 400G OpenZR+ coherent optics management for fiber-dark or leased DWDM scenarios — no standalone transponder required.
SR-MPLS Traffic Engineering
Segment Routing over MPLS with Flex-Algo path computation. Run ISP subscriber traffic on low-latency paths and wholesale/backhaul traffic on capacity-optimized paths — over the same physical middle-mile infrastructure.
400G IPoDWDM for Fiber Runs
For middle-mile routes over long fiber, OcNOS-SP manages 400G OpenZR+ coherent optics natively — eliminating a standalone DWDM transponder shelf and its separate management system. The same IPoDWDM capability used in SP metro networks, now accessible to regional ISPs.
For deep coverage of IPoDWDM architecture, platforms, and optical performance management, see the dedicated IPoDWDM solution page.
Explore IPoDWDM Transport →Carrier-grade routing economics for community networks and rural ISPs.
Municipal broadband networks and rural ISPs face the same technical requirements as large carriers — BGP, MPLS, HQoS — but operate on fraction of the CAPEX budget. OcNOS-SP's progressive licensing model lets community networks start at IPBASE (basic L2/L3 routing) and incrementally unlock MPLS and advanced capabilities as subscriber counts grow, without replacing hardware at each step.
Progressive Licensing — Start Small, Scale Without Hardware Changes
Deploy IPBASE for initial L2/L3 routing. Add MPLS when you need VPN services. Upgrade to PLUS for full BGP scale. Each tier is a software license on the same open hardware — no forklift upgrades as the network grows.
2-Week Hardware Lead Times
Open hardware from Edgecore and UfiSpace ships in 2 weeks versus 6+ months for equivalent proprietary platforms. Critical for rural broadband builds with BEAD grant funding tied to construction milestones.
BEAD-funded operators can deploy OcNOS-SP on open hardware and reduce routing CAPEX by 60–70% versus proprietary chassis — extending the reach of grant-funded infrastructure to serve more unserved households within the same budget envelope.
What OcNOS-SP does for broadband operators.
The protocol stack that turns a commodity switch into a carrier-grade broadband aggregation and routing platform.
Hierarchical QoS
Per-subscriber traffic shaping, policing, and scheduling at line rate — no external policy server required. Critical for enforcing gigabit tier-based broadband plans across thousands of simultaneous PON sessions. Deep-buffer silicon prevents microburst-induced drops.
EVPN-VXLAN Aggregation
Modernize legacy L2 aggregation rings with EVPN-VXLAN or MPLS data planes. Multi-tenant traffic isolation — residential, business, and wholesale — on the same physical infrastructure. Migrate from legacy ring topologies without replacing OLT hardware.
SR-MPLS Middle Mile
Segment Routing with Flex-Algo for constraint-based path computation across middle-mile fiber. TI-LFA sub-50ms fast reroute for resilient subscriber connectivity. MPLS L2/L3 VPNs for wholesale and multi-operator transport over shared infrastructure.
BGP at Internet Scale
Full-table BGP on Broadcom Qumran2: 2M+ routes, multi-hop eBGP, RPKI origin validation, BFD sub-second failure detection. For ISPs with IXP or direct upstream transit peering — OcNOS-SP handles the internet edge routing at the same scale as the SP core.
400G IPoDWDM Middle Mile
Manage 400G OpenZR+ coherent optics natively from the OcNOS CLI — eliminating standalone DWDM transponder shelves on middle-mile fiber runs. The same IPoDWDM capability deployed in SP metro networks is available on open hardware economics to regional ISPs.
Single Support Contract
IP Infusion provides a unified support contract covering both the OcNOS-SP software and the validated open hardware platform. No multi-vendor finger-pointing — one escalation path, one SLA, 24/7 carrier-grade coverage for the complete broadband routing stack.
Open platforms. 2-week lead times.
A selection of jointly validated platforms. IP Infusion and the hardware partner co-validate each platform — the full Hardware Compatibility List covers 40+ platforms across aggregation, middle mile, and internet edge roles.
This is a representative selection. The complete OcNOS Hardware Compatibility List includes 40+ validated platforms.
View Full Hardware Compatibility List →Nextlink Internet: 1M+ subscribers on a single open NOS.
"OcNOS-SP gave us a carrier-grade routing platform across our entire footprint. We eliminated the wait times for proprietary chassis, reduced CAPEX drastically, and now operate edge-to-cell site routing from a single, consistent software stack."
— Network Engineering, Nextlink Internet
Your traffic goes somewhere.
OcNOS follows it there.
Broadband aggregation traffic flows upstream through SP core routing and IPoDWDM metro transport to data centers and internet exchange points. All on OcNOS.
SP Networks
Broadband aggregation traffic hands off to the SP core. OcNOS-SP handles both ends — the access aggregation layer and the provider edge — with a consistent routing platform and a single support contract.
IPoDWDM Transport
Middle-mile fiber runs can run 400G OpenZR+ coherent optics managed directly from OcNOS-SP — eliminating standalone transponder shelves. The same IPoDWDM capability from SP metro is available to regional ISPs.
Data Center Fabric
Subscriber traffic ultimately lands in a data center — running OcNOS-DC for EVPN-VXLAN leaf-spine. From broadband edge to DC fabric, one vendor platform, consistent operations.
Questions from ISPs and broadband operators
Broadband briefs & deployment stories.
Architecture and commercial detail for middle mile, access, and cable operator networks.
Middle Mile Broadband
400G metro aggregation for BEAD-funded and competitive broadband: architecture, validated platforms, and deployment timelines.
Download → Solution Brief · PDFRocNet 10G Bundles for Cable SPs
Turnkey 10G networking bundles for cable operators — hardware, OcNOS, and support delivered as one SKU.
Download → Case Study · PDFNextlink — 400G Middle Mile
A regional US broadband operator scales middle mile to 400G on OcNOS and Edgecore hardware.
Download →Build your broadband network on open ground.
Talk to an IP Infusion engineer about your ISP, WISP, or FTTx aggregation architecture. We'll walk through the hardware options, licensing tiers, and CAPEX impact for your specific topology.