[  484.331210] netdevsim netdevsim441 eni441np1: renamed from eth0
[  484.432921] netdevsim netdevsim615 eni615np1: renamed from eth1
[  484.770012] Could not find device with ifindex 2000 in netnsfd 11
[  484.770201] Could not find netns with fd: 2000
[  484.770309] Cannot link a netdevsim to itself
[  484.770438] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).