[  489.474137] netdevsim netdevsim530 eni530np1: renamed from eth1
[  489.575441] netdevsim netdevsim270 eni270np1: renamed from eth0
[  489.961787] Could not find device with ifindex 2000 in netnsfd 11
[  489.961923] Could not find netns with fd: 2000
[  489.961991] Cannot link a netdevsim to itself
[  489.962078] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).