[  514.751577] netdevsim netdevsim634 eni634np1: renamed from eth1
[  514.848597] netdevsim netdevsim411 eni411np1: renamed from eth0
[  515.095077] Could not find device with ifindex 2000 in netnsfd 11
[  515.095299] Could not find netns with fd: 2000
[  515.095376] Cannot link a netdevsim to itself
[  515.095475] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).