[  757.053783][T14448] netdevsim netdevsim498 eni498np1: renamed from eth0
[  757.072074][T14450] netdevsim netdevsim512 eni512np1: renamed from eth1
[  757.664704][T14436] Could not find device with ifindex 2000 in netnsfd 11
[  757.665226][T14436] Could not find netns with fd: 2000
[  757.665592][T14436] Cannot link a netdevsim to itself
[  757.666090][T14436] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).