On Tue, Dec 12, 2017 at 10:34 AM, Stephen Hemminger <step...@networkplumber.org> wrote: > Why not add to netdevsim rather than cluttering up a normal driver > with test support. We just pulled a bunch of test stuff out of dummy > for the same reason.
My test setup to trigger an openvswitch conntrack issue (https://marc.info/?l=linux-netdev&m=151309548725627) involves a lot of moving parts: [netns-a: vetha1] - [vetha0] - [ovsbr0] - [vethb0] - [netns-b: vethb1] with nc client and server in netns-a and -b, and tweaks like turning off tcp_timestamps to make sure the packets in the TCP stream are small enough to reproduce the problem. A simpler, less fragile test setup would be valuable, especially if it ends up as an automated regression test. Could netdevsim be useful for that? Are there any existing tests producing TCP traffic that might serve as an example? --Ed
