[  489.634358] netdevsim netdevsim559 eni559np1: renamed from eth1
[  489.729362] netdevsim netdevsim421 eni421np1: renamed from eth0
[  489.939423] Could not find device with ifindex 2000 in netnsfd 11
[  489.939721] Could not find netns with fd: 2000
[  489.939811] Cannot link a netdevsim to itself
[  489.939908] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).