And… tracing can usually be turned on at any of the packet driver input nodes
(i.e. dpdk-input, af-packet-input) and some of the nodes that generate packets
internally, like ping.
The magic to grok from in the code base is:
VLIB_BUFFER_TRACE_TRAJECTORY_INIT (b0);
Indicating that this node can be used in a ‘trace add <NODE> X’ statement.
/neale
-----Original Message-----
From: <vpp-dev-boun...@lists.fd.io> on behalf of "Kinsella, Ray"
<m...@ashroe.eu>
Date: Thursday, 26 October 2017 at 08:10
To: "vpp-dev@lists.fd.io" <vpp-dev@lists.fd.io>
Subject: Re: [vpp-dev] What can be traced?
10 is how many frame to capture in the trace.
Ray K
On 25/10/2017 23:09, John Wei wrote:
>
> *vppctl trace add* af-packet-input 10
> was mentioned in this write up:
> https://wiki.fd.io/view/VPP/Progressive_VPP_Tutorial#Action:_Add_trace
>
> Is there write-up on
> - list of things that we can turn on tracing?
> - what is the number "10" means?
>
> John
>
>
>
>
>
>
> _______________________________________________
> vpp-dev mailing list
> vpp-dev@lists.fd.io
> https://lists.fd.io/mailman/listinfo/vpp-dev
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