Re: [PATCH net-next] selftests: mptcp: capture pcap on both sides

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From: Matthieu Baerts <matthieu.baerts@xxxxxxxxxxxx>
Date: Mon,  6 Jul 2020 14:44:08 +0200

> When investigating performance issues that involve latency / loss /
> reordering it is useful to have the pcap from the sender-side as it
> allows to easier infer the state of the sender's congestion-control,
> loss-recovery, etc.
> 
> Allow the selftests to capture a pcap on both sender and receiver so
> that this information is not lost when reproducing.
> 
> This patch also improves the file names. Instead of:
> 
>   ns4-5ee79a56-X4O6gS-ns3-5ee79a56-X4O6gS-MPTCP-MPTCP-10.0.3.1.pcap
> 
> We now have something like for the same test:
> 
>   5ee79a56-X4O6gS-ns3-ns4-MPTCP-MPTCP-10.0.3.1-10030-connector.pcap
>   5ee79a56-X4O6gS-ns3-ns4-MPTCP-MPTCP-10.0.3.1-10030-listener.pcap
> 
> It was a connection from ns3 to ns4, better to start with ns3 then. The
> port is also added, easier to find the trace we want.
> 
> Co-developed-by: Christoph Paasch <cpaasch@xxxxxxxxx>
> Signed-off-by: Christoph Paasch <cpaasch@xxxxxxxxx>
> Signed-off-by: Matthieu Baerts <matthieu.baerts@xxxxxxxxxxxx>

Applied, thank you.



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