Open5GS and eBPF/XDP-based OAI-CN5G-UPF

[s5uishida]

Hi community,

I wrote a simple configuration that works with Open5GS and eBPF/XDP-based OAI-CN5G-UPF.

https://github.com/s5uishida/open5gs_5gc_ueransim_oai_upf_sample_config

In addition, the OAI-CN5G-UPF v2.2.0 released last month was not able to work with Open5GS SMF as is.
The reason is that OAI-CN5G-UPF needs to recognize 3GPP Interface Type IE in the following IE, so I created a patch for this purpose.

3GPP TS 29.244 Table 7.5.2.2-2: PDI IE within PFCP Session Establishment Request
3GPP TS 29.244 Table 7.5.4.3-2: Update Forwarding Parameters IE in the Update FAR IE
3GPP TS 29.244 Table 7.5.2.3-2: Forwarding Parameters IE in FAR

https://github.com/s5uishida/install_oai_upf/blob/main/patches/common-src_3gpp_interface_type.patch

I am currently requesting that this patch be merged into OAI-CN5G-UPF.
In addition to this, I applied some patches to OAI-CN5G-UPF and performed a simple operation check, as shown in the URL below.

https://github.com/s5uishida/install_oai_upf/tree/main#get_patch

The results of simple comparative measurements of throughput and latency with other OSS UPFs are shown below.

https://github.com/s5uishida/simple_measurement_of_upf_performance_10

For your reference.

[s5uishida]

Since there was already code committed to the fix_upf_qos_missing_ie branch, I decided to apply the code below instead of my common-src_3gpp_interface_type.patch.

• Fix: fix missing ie for QoS

Therefore, I changed the following description.

https://github.com/s5uishida/install_oai_upf/tree/main#get_patch

[s5uishida]

I simply confirmed the operation of Framed Routing by combining Open5GS C-Plane and OAI-CN5G-UPF(Simple Switch mode).

https://github.com/s5uishida/open5gs_5gc_ueransim_oai_upf_framed_routing_sample_config

And added simple performance measurements for OAI-CN5G-UPF(Simple Switch) below.

https://github.com/s5uishida/simple_measurement_of_upf_performance_10