[  456.743063] netdevsim netdevsim351 eni351np1: renamed from eth0
[  456.743716] netdevsim netdevsim554 eni554np1: renamed from eth1
[  456.827518] Could not find device with ifindex 2000 in netnsfd 11
[  456.827636] Could not find netns with fd: 2000
[  456.827680] Cannot link a netdevsim to itself
[  456.827731] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).