[  838.451148][T14804] netdevsim netdevsim350 eni350np1: renamed from eth0
[  838.459811][T14806] netdevsim netdevsim673 eni673np1: renamed from eth1
[  839.076174][T14792] Could not find device with ifindex 2000 in netnsfd 11
[  839.076972][T14792] Could not find netns with fd: 2000
[  839.077409][T14792] Cannot link a netdevsim to itself
[  839.077827][T14792] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).