[  822.883092][T15699] netdevsim netdevsim423 eni423np1: renamed from eth0
[  822.895831][T15698] netdevsim netdevsim531 eni531np1: renamed from eth1
[  823.565350][T15686] Could not find device with ifindex 2000 in netnsfd 11
[  823.566035][T15686] Could not find netns with fd: 2000
[  823.566504][T15686] Cannot link a netdevsim to itself
[  823.567069][T15686] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).