OcNOS: the brain inside the box.
OcNOS is the carrier-grade software that turns open merchant-silicon hardware into a production router or switch. It comes in two families, OcNOS-SP and OcNOS-DC, each sold in editions, with a shared CLI, plus OcNOS for OEMs. In production with 900+ operators across 60+ countries.
Open hardware becomes a router or switch only when a NOS runs on it.
A network operating system forwards every packet, runs BGP with the rest of the internet, programs the merchant-silicon ASIC, exposes APIs for automation, and keeps the network up around the clock.
Open hardware, before a NOS.
An open switch from Edgecore or UfiSpace ships as merchant-silicon hardware with no networking software on it: no BGP, no EVPN, no CLI, no telemetry, and no way to push config or fail over a link until a NOS is installed.
The same box becomes a carrier-grade router or switch.
Boot OcNOS and the same box becomes carrier-grade infrastructure. BGP holds the full internet table, SR-MPLS computes Flex-Algo paths, EVPN-VXLAN builds the leaf-spine fabric, and RoCEv2 keeps the AI cluster lossless. It runs an industry-standard CLI and the APIs orchestrators already speak, and as an OcNOS System it puts hardware, software and RMA on one support contract.
The OcNOS stack, layer by layer.
Open hardware at the bottom, ZebOS routing daemons in the middle, and NETCONF and gNMI on top. Six layers; select any one to see what it does.
IP Maestro automates an OcNOS fleet from Day 0 to Day 2.
Day-0 zero-touch provisioning, Day-1 golden-config templates, Day-2 drift detection, gNMI telemetry to your dashboards. It is optional, and it sits alongside the official Ansible collection.
Open APIs and standard models.
An industry-standard CLI for engineers, and NETCONF/YANG, gNMI and OpenConfig for automation. BGP-LS for controllers. Streaming telemetry, dial-in and dial-out telemetry to your existing collector.
The ZebOS stack: routing in production since 1999.
Multi-protocol routing daemons: BGP, OSPF, IS-IS, PIM, BFD, LDP, RSVP-TE, SR-MPLS with Flex-Algo and TI-LFA, EVPN-VXLAN, the DCB stack for lossless RoCEv2, IEEE 1588v2 timing, Carrier Ethernet, and ZR and OpenZR+ coherent optics. One control plane under every OcNOS-SP and OcNOS-DC edition.
One control plane across the qualified Broadcom silicon.
The Hardware Abstraction Layer translates control-plane intent into ASIC programming on Tomahawk, Trident, Qumran and Jericho 2C+. The CLI and the automation stay the same whichever silicon is in the box.
ONIE installs OcNOS on a Linux base.
The Open Network Install Environment loads OcNOS the way open network software is installed: load the image from the ONIE prompt and reboot. Upgrades run from the OcNOS shell, and engineers keep the Linux tools they already know.
40+ qualified platforms. Buy the box that fits the build.
Compact cell-site routers through 14.4 Tbps SP core routers and 51.2 Tbps 800G AI-fabric spines, from Edgecore, UfiSpace and Celestica, all on Broadcom merchant silicon: 26 qualified for OcNOS-SP and 18 for OcNOS-DC.
One OcNOS family, from carrier core to embedded OEM.
Service-provider routing, data-center fabric, and AI fabric, each with a full feature set. Plus OEM, where the same routing stack ships embedded inside vendor products.
See where OcNOS runs across the network
Carrier-grade SR-MPLS, IPoDWDM, and 5G backhaul timing on open hardware.
OcNOS-SP routers at every tier, from the cell site to the IP core, each running the edition its role needs: IPBASE, MPLS, CSR or PLUS. In production with 900+ operators across 60+ countries, including NTT, DIGI and Uniti.
- SR-MPLS, Flex-Algo, TI-LFA fast reroute, BGP-LU
- Carrier Ethernet E-Line, E-LAN, E-Tree, Y.1731 OAM
- 400G ZR and OpenZR+ IPoDWDM on 7 qualified routers
- IEEE 1588v2 G.8275.1/.2 and SyncE for 5G backhaul
EVPN-VXLAN leaf-spine on Broadcom Tomahawk and Trident.
Every switch runs OcNOS-DC, in the edition that fits its role: IPBASE, PLUS or DC-MGMT. eBGP unnumbered underlay, EVPN overlays, ZTP rack onboarding, gNMI streaming telemetry. OcNOS-DC shares one CLI and one automation model with OcNOS-SP, so one team runs both.
- EVPN-VXLAN overlays with multi-homing & ARP/ND flood control
- ZTP zero-touch provisioning over IPv4 & IPv6
- gNMI streaming telemetry, dial-in and dial-out
- DCI: 400G ZR and OpenZR+ on selected switches
Lossless 800G networking for GPU clusters.
OcNOS-DC brings the DCB stack for RoCEv2 RDMA, PFC over L3, ECN, ETS, DCBX and Dynamic Load Balancing, to Broadcom Tomahawk 5 800G spines (Edgecore AIS800-64D, UfiSpace S9321-64E) with Tomahawk 4 400G leaves. As an OcNOS System, the fabric comes with one support contract for software, hardware and RMA.
- PFC over L3, ECN and ETS for lossless RDMA queues
- Dynamic Load Balancing moves flows off congested links
- eBGP unnumbered underlay, ZTP, DCBX automation
- PFC deadlock detection and recovery
Building hardware? Use a routing stack first shipped in 1999.
Hardware vendors do not have to write a routing stack from scratch. License OcNOS CP, the control-plane source code formerly known as ZebOS, to compile into your own OS or appliance, or OcNOS Flex, a complete binary NOS image that IP Infusion ports to your hardware. ZebOS and OcNOS CP have a lineage spanning 300+ OEMs.
- Flex: complete binary NOS, ported by IP Infusion
- CP: control-plane source code, compiled into your OS
- ZebOS lineage: first shipped to OEMs in 1999
- CP: license fee plus per-unit royalty; Flex: per-box license
One OcNOS family, from the metro edge to the AI fabric.
The OcNOS family that runs carrier and transport networks in production also builds the AI Ethernet fabric. You do not trade carrier-grade routing to get a modern data-center fabric, and you do not run a data-center-only NOS that cannot carry your transport. OcNOS-SP and OcNOS-DC share the same industry-standard CLI and operational model, and pre-integrated OcNOS Systems add one support contract and one RMA path.
| Capability | What OcNOS delivers | Qualified Broadcom silicon and platforms |
|---|---|---|
| Service provider, transport, and broadband | ||
| IP/MPLS core routing | BGP, IS-IS, OSPF, LDP, RSVP-TE, and a 1/2/3 level queuing hierarchy. | Jericho 2C+ (up to 14.4 Tbps), Qumran 2C |
| Segment routing | SR-MPLS, Flex-Algo, TI-LFA fast reroute, BGP-LU. Initial SRv6 support on selected routers, with more in development. | SR-MPLS on all 26 qualified OcNOS-SP routers (Qumran, Jericho 2C+) |
| Carrier Ethernet | E-Line, E-LAN, E-Tree services, a 1/2/3 level queuing hierarchy, Y.1731 and CFM OAM. | Qumran 2A, Qumran 2U, Qumran 2C |
| IP over DWDM (IPoDWDM) | 400G ZR and OpenZR+ coherent pluggables driven from the routing CLI, with no separate transponder shelf. | 7 OcNOS-SP routers (Jericho 2C+, Qumran 2C, Qumran 2A; 18 ZR+ capable ports on the S9610-36D), Trident 4 and Tomahawk 4 switches |
| Timing and sync for 5G backhaul | IEEE 1588v2 PTP with the G.8275.1 and G.8275.2 telecom profiles, boundary and transparent clocks, SyncE. | Qumran 2A, Qumran 2U cell site gateway |
| Broadband and subscriber edge | Carrier-grade ISP aggregation and edge routing; vBNG supplied by an ecosystem partner. | Qumran 2A, Qumran 2C |
| Data center and AI Ethernet fabric | ||
| Leaf-spine fabric | EVPN-VXLAN overlays, EVPN multi-homing, ARP/ND flood control, eBGP unnumbered underlay, ZTP. | Trident 3, Trident 4, Tomahawk 4 |
| Lossless RoCEv2 for GPU and AI | PFC over L3, ECN, ETS, DCBX, and PFC deadlock detection and recovery. | Tomahawk 5 (51.2 Tbps, 64x800G), Tomahawk 4 |
| Dynamic load balancing | DLB moves flows off congested ECMP paths, with reactive path rebalance on selected platforms. | Tomahawk 4 and Tomahawk 5 |
| 800G and 400G switching | 64x800G OSFP spines with 400G leaves for GPU back-end fabrics. | Edgecore AIS800-64D, AS9817-64D; UfiSpace S9321-64E, S9321-64EO |
| AI fabric scale | Two tiers reach 4,096 GPUs at 800G per GPU on Tomahawk 5; three tiers reach 16,384. These are reference-design ceilings based on Clos radix calculations, not measured figures. | Tomahawk 5 leaves and spines |
| Data center interconnect | 400G ZR and OpenZR+ coherent optics to a remote data center, from the same switch. | Trident 4, Tomahawk 4; 800G ZR on two Tomahawk 5 platforms |
| Shared across both families | ||
| Model-driven management | OpenConfig and native YANG over NETCONF, gNMI streaming telemetry, plus SNMP for existing NOC tooling. | All qualified platforms; gNMI per platform |
| Automation, Day 0 to Day 2 | ZTP and the official Ansible collection (ipinfusion.ocnos). | All qualified platforms |
| Support and delivery | One industry-standard CLI across both families. OcNOS Systems add one purchase order, one 24/7 TAC SLA, and one RMA path across software and qualified hardware. | 40+ qualified platforms |
Feature support is per platform and per OcNOS edition. The Feature Matrix and Hardware Compatibility List below are the authoritative, per-platform source of truth. AI-fabric GPU counts are reference-design ceilings, not measured figures.
Every qualified switch, router, and cell-site gateway.
Edgecore, UfiSpace and Celestica. Filter by ASIC family, port speed, form factor, or SKU tier. Each platform shows its SR-MPLS, EVPN, RoCEv2, timing, and coherent-optics support.
Every feature tracked, per platform, per SKU.
The complete feature grid: which routing protocol, which DCB feature, which timing profile, which optic transceiver, supported on which qualified box, in which OcNOS edition. Filter, compare and export for RFP work.
In production from Tier-1 carriers to regional broadband.
In production with 900+ operators across 60+ countries: Tier-1 IOWN transport, sovereign MPLS, regional broadband and open fiber transport, each on the OcNOS edition its role needs.
Why pick OcNOS over a proprietary chassis?
OcNOS brings carrier-grade routing to qualified open hardware, and as an OcNOS System it comes with one accountable vendor for software, hardware, and RMA.
Also an alternative to a self-integrated open-source NOS. IP Infusion qualifies each platform per model and ASIC stepping and supports OcNOS with 24/7 TAC, on a routing stack first shipped in 1999. Read a detailed comparison with a proprietary router NOS.
Frequently asked questions
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OcNOS 7.0 SP Datasheet
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OcNOS 7.0 DC Datasheet
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