Hey everyone, I’m working on a 5G NR research project requiring SCTP support for the F1 interface in OpenAirInterface (OAI), and I’ve run into a blocker with Jetson/Tegra Linux. The Problem The Tegra Linux kernel (used on Jetson boards) lacks native SCTP module support. The SCTP kernel module (sctp.ko) is either: Not compiled into the kernel Not available as a loadable module Not included in the standard Jetson kernel builds This is a hard blocker for OAI’s F1 interface, which uses F1AP over SCTP/IP for CU/DU communication. What I’ve Tried Check kernel config: SCTP wasn’t enabled in the default kernel config Build from source: Attempted to recompile the kernel with SCTP enabled, but hit toolchain issues (see below) Module not available: modprobe sctp returns “Module not found” Why Kernel Recompilation Failed I tried building a custom kernel with SCTP enabled, but ran into: Proprietary Nvidia toolchain constraints: the Jetson uses a custom/toolchain that’s difficult to replicate Build environment issues: even with L4T sources, the kernel build process is non-trivial No out-of-the-box SCTP: unlike desktop/server Linux distros, Jetson doesn’t ship with SCTP support The Workaround (For Now) I ended up migrating to an x86 mini PC (Intel-based) which has native, out-of-the-box SCTP support and works perfectly. Questions Is there an official or community kernel module for SCTP on Jetson? Has anyone successfully built SCTP into the Tegra kernel? Any guides? Are there pre-built kernel images with SCTP enabled for Jetson? Is there a userspace SCTP library (like usrsctp) that could work as a permanent alternative? Is this on Nvidia’s roadmap to include in future L4T releases? System Info Board: Jetson (testing on Nano/AGX Xavier/Orin) JetPack/L4T Version: Latest (5.x/6.x) Kernel: Tegra Linux Use case: 5G NR CU/DU split with OpenAirInterface Any insights, workarounds, or existing solutions would be greatly appreciated!

SCTP (Stream Control Transmission Protocol) module missing on Jetson - any solutions?

DaneLLL June 1, 2026, 2:47am 5

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