[  522.340201] netdevsim netdevsim438 eni438np1: renamed from eth0
[  522.437454] netdevsim netdevsim717 eni717np1: renamed from eth1
[  522.657037] Could not find device with ifindex 2000 in netnsfd 11
[  522.657280] Could not find netns with fd: 2000
[  522.657393] Cannot link a netdevsim to itself
[  522.657532] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).