[  456.629557] netdevsim netdevsim349 eni349np1: renamed from eth0
[  456.630606] netdevsim netdevsim746 eni746np1: renamed from eth1
[  456.717666] Could not find device with ifindex 2000 in netnsfd 11
[  456.717792] Could not find netns with fd: 2000
[  456.717837] Cannot link a netdevsim to itself
[  456.717887] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).