[  759.199024][T14568] netdevsim netdevsim390 eni390np1: renamed from eth0
[  759.209706][T14570] netdevsim netdevsim613 eni613np1: renamed from eth1
[  759.771921][T14556] Could not find device with ifindex 2000 in netnsfd 11
[  759.772448][T14556] Could not find netns with fd: 2000
[  759.772840][T14556] Cannot link a netdevsim to itself
[  759.773249][T14556] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).