[  526.411832] netdevsim netdevsim438 eni438np1: renamed from eth0
[  526.508632] netdevsim netdevsim527 eni527np1: renamed from eth1
[  526.761167] Could not find device with ifindex 2000 in netnsfd 11
[  526.761365] Could not find netns with fd: 2000
[  526.761469] Cannot link a netdevsim to itself
[  526.761576] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).