Hi Murthy, There is no way to get the source node. However, if you are debugging and you want to see the full history of the graph through which a packet has passed, you can turn on trajectory tracing. #define VLIB_BUFFER_TRACE_TRAJECTORY 1 In vlib/buffer.h
/neale From: <vpp-dev@lists.fd.io> on behalf of Satya Murthy <satyamurthy1...@gmail.com> Date: Tuesday 24 March 2020 at 06:44 To: "vpp-dev@lists.fd.io" <vpp-dev@lists.fd.io> Subject: [vpp-dev] How to get source node of a buffer Hi , Is there any way to find the source node of a buffer. Basically, I want to know from which node this buffer came. I understand that each graph node shall have a design which is independant of the source node. However, the source node information may be useful in case of debugging some crashes while processing a buffer. Any inputs on this pls. -- Thanks & Regards, Murthy
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