[  820.480034][T14565] netdevsim netdevsim423 eni423np1: renamed from eth0
[  820.492811][T14567] netdevsim netdevsim523 eni523np1: renamed from eth1
[  821.090603][T14553] Could not find device with ifindex 2000 in netnsfd 11
[  821.091163][T14553] Could not find netns with fd: 2000
[  821.091883][T14553] Cannot link a netdevsim to itself
[  821.092382][T14553] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).