[  684.691491][T14581] netdevsim netdevsim355 eni355np1: renamed from eth0
[  684.694756][T14583] netdevsim netdevsim552 eni552np1: renamed from eth1
[  685.044907][T14569] Could not find device with ifindex 2000 in netnsfd 11
[  685.045210][T14569] Could not find netns with fd: 2000
[  685.045386][T14569] Cannot link a netdevsim to itself
[  685.045632][T14569] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).