Forward packets from and to the same port using DOCA-Flow

[pusnow1]

Hi, I’m trying to forward packet from a port to the same port using DOCA-Flow.

By changing following code line to fwd.port_id = port_id; (The original code works perfectly)

However, it resulted in segfault in doca flow library. Is there any way to forward packets from and to the same port?

samples/doca_flow/flow_port_fwd/flow_port_fwd_sample.c

[sribhargavid]

Hello @pusnow1 ,

Thank you for posting your query on our community.

According to the NVIDIA DOCA Flow documentation, a port cannot be paired with itself — which implies that forwarding packets from a port back to the same port is not supported.

You can find the relevant statement under the API documentation for doca_flow_port_pair.

Flow Programming Guide - NVIDIA Docs

Thanks,

Bhargavi