[  522.906639] netdevsim netdevsim270 eni270np1: renamed from eth0
[  523.003941] netdevsim netdevsim692 eni692np1: renamed from eth1
[  523.267016] Could not find device with ifindex 2000 in netnsfd 11
[  523.267246] Could not find netns with fd: 2000
[  523.267333] Cannot link a netdevsim to itself
[  523.267458] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).