[  517.722872] netdevsim netdevsim334 eni334np1: renamed from eth0
[  517.820733] netdevsim netdevsim742 eni742np1: renamed from eth1
[  518.036195] Could not find device with ifindex 2000 in netnsfd 11
[  518.036406] Could not find netns with fd: 2000
[  518.036509] Cannot link a netdevsim to itself
[  518.036643] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).