[  522.456437] netdevsim netdevsim596 eni596np1: renamed from eth1
[  522.552729] netdevsim netdevsim374 eni374np1: renamed from eth0
[  522.807117] Could not find device with ifindex 2000 in netnsfd 11
[  522.807366] Could not find netns with fd: 2000
[  522.807458] Cannot link a netdevsim to itself
[  522.807572] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).