Cornelis Networks holds the MA-L block D0:06:6A, registered to "Cornelis Networks, Inc." at 1500 Liberty Ridge Drive, Suite 100, Wayne, PA, US 19087. Unlike a consumer or commodity-Ethernet vendor, every device behind this OUI is high-performance compute hardware: the company builds PCIe fabric adapters and switches for AI and HPC (high-performance computing) interconnects, not phones, laptops, or general-purpose enterprise NICs. Cornelis was formed in 2020 when Intel spun out its Omni-Path interconnect business, and it continues to develop the Omni-Path Architecture (OPA) fabric while expanding into Ethernet-based SuperNICs. Product lines include the CN5000 Omni-Path adapters (400 Gbps), the CN6000 SuperNIC (800 Gbps, multi-protocol across Omni-Path, RoCEv2, and Ultra Ethernet), the Omni-Path 100 Series adapters, and Omni-Path fabric switches. The practical signal for asset classification is strong and narrow: a D0:06:6A address on a network almost certainly marks a high-performance compute node — a server carrying a PCIe fabric adapter — typical of supercomputing clusters, national-laboratory HPC systems, cloud AI-training fabrics, and university research clusters. These devices normally live on isolated high-speed interconnect fabrics rather than internet-facing segments. As with all IEEE OUI work, no registration date is available: IEEE publishes none, and any third-party "date registered" for a MAC prefix is a database artifact, not an IEEE fact.
- IEEE assignment
- D0:06:6A → Cornelis Networks, Inc. [Confirmed] — IEEE MA-L (enrichment/registries/oui.csv line 523; registry confirms org and address)
- Registry / block size
- MA-L (24-bit OUI) [Confirmed] — IEEE MA-L. NOTE: IEEE's public OUI data publishes NO assignment/registration date (oui.csv columns are only Registry, Assignment, Organization Name, Organization Address); any "date registered" on third-party tools is a database artifact, not an IEEE fact.
- HQ / country
- 1500 Liberty Ridge Drive, Suite 100, Wayne, PA, US 19087 (registry address; corporate HQ Wayne, Pennsylvania, USA) [Confirmed] — IEEE MA-L registry; corroborated by zoominfo.com/c/cornelis-networks/512887460
- Company status
- active [Confirmed] — cornelis.com/company/about
- Founded
- 2020 — Intel Omni-Path business spinout; $20M Series A closed September 2020 [Confirmed] — en.wikipedia.org/wiki/Omni-Path, networkworld.com (Cornelis alternative to InfiniBand/Ethernet for HPC and AI)
- Device types
- PCIe HPC/AI network adapters (SuperNICs) and fabric switches — CN5000 Omni-Path adapters (400 Gbps), CN6000 SuperNIC (800 Gbps, multi-protocol Omni-Path / RoCEv2 / Ultra Ethernet), Omni-Path 100 Series adapters, Omni-Path 48-port switches (originally Prairie River ASIC) [Confirmed] — cornelis.com/product/cornelis-cn5000-omni-path-adapters, cornelis.com (CN6000 800 Gbps Ethernet SuperNIC), en.wikipedia.org/wiki/Omni-Path
- Notable products
- Omni-Path Architecture (OPA) fabric; CN5000 / CN6000 adapters; Omni-Path switches
- Typical deployment context
- supercomputing clusters, government/national-laboratory HPC systems, cloud AI-training fabrics, university research clusters, enterprise AI infrastructure. A Cornelis OUI strongly indicates a high-performance compute node (server with a PCIe fabric adapter), not a consumer device. [Confirmed] — cornelis.com/company/about, electronicsforyou.biz (Intel spinout Cornelis lands role in national-lab supercomputing project)
- Security context
- No public CVEs or CISA Known Exploited Vulnerabilities attributed to Cornelis Networks products as of June 2026; no security advisories surfaced in a targeted search. Device class (HPC fabric NICs in closed cluster fabrics) typically sits on isolated high-speed interconnects, not general-purpose internet-facing segments. No elevated risk beyond baseline HPC environment considerations indicated. [Confirmed — targeted search returned no advisories]
- Website
- https://www.cornelis.com (redirects from cornelisnetworks.com) [Confirmed] — cornelis.com/company/about
- Analyst note
- D0:06:6A is a narrow, high-signal classifier — it marks dedicated HPC/AI fabric hardware. Seeing it outside a compute-cluster context is unusual and worth investigating. No registration date is published or inferable.