[  857.071827][T14554] netdevsim netdevsim400 eni400np1: renamed from eth0
[  857.089517][T14555] netdevsim netdevsim652 eni652np1: renamed from eth1
[  857.909983][T14541] Could not find device with ifindex 2000 in netnsfd 11
[  857.911321][T14541] Could not find netns with fd: 2000
[  857.911962][T14541] Cannot link a netdevsim to itself
[  857.912771][T14541] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).