[  474.456691] netdevsim netdevsim325 eni325np1: renamed from eth0
[  474.457675] netdevsim netdevsim623 eni623np1: renamed from eth1
[  474.540606] Could not find device with ifindex 2000 in netnsfd 11
[  474.540692] Could not find netns with fd: 2000
[  474.540734] Cannot link a netdevsim to itself
[  474.540784] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).