[  696.783512][T13044] netdevsim netdevsim491 eni491np1: renamed from eth0
[  696.805615][T13046] netdevsim netdevsim627 eni627np1: renamed from eth1
[  697.442499][T13031] Could not find device with ifindex 2000 in netnsfd 11
[  697.443351][T13031] Could not find netns with fd: 2000
[  697.443740][T13031] Cannot link a netdevsim to itself
[  697.444218][T13031] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).