New ContributorSeeking Intel NIC with Timing Support for GNSS-Synchronized O-RAN Deployment
We are currently testing a commercial-off-the-shelf (COTS) O-RAN Control Plane implementation in our lab. The goal is to fan out both PTP and SyncE to multiple time-dependent components—namely DUs, RUs, and other synchronized applications. We initially started with the Intel Ethernet XXV710-DA2T Dual Port 25G NIC (SFP28 & SMA). However, during evaluation, we discovered it lacks the necessary hardware support for precise time synchronization (PTP/SyncE), particularly the PHY-level timestamping and oscillator tuning required for Grandmaster and boundary clock roles. After further research, we noted references to the Intel E810 series as well as FPGA-based NICs for timing-sensitive applications, but we haven’t found definitive documentation or product guidance.
We are seeking:
A list of Intel NICs that support both PTP (IEEE 1588-2008/2019) and SyncE, ideally with GNSS input capability (e.g., via SMA or PCIe-based solutions)
Recommended NIC models for building a GNSS-disciplined Grandmaster or boundary clock node
User guides or reference implementations (LinuxPTP, phc2sys, hardware configuration, supported kernel versions)
Clarification on E810 variants (e.g., E810-XXVDA2, E810-CQDA2) and their SyncE/PTP feature support
Our lab environment is Linux-based, and we plan to use LinuxPTP, ptp4l, and phc2sys for clock distribution and discipline
Any help identifying a suitable Intel NIC or timing hardware, along with relevant technical resources, would be highly appreciated.
Thank you!
