[  509.193534] netdevsim netdevsim416 eni416np1: renamed from eth0
[  509.194732] netdevsim netdevsim667 eni667np1: renamed from eth0
[  509.288065] Could not find device with ifindex 2000 in netnsfd 11
[  509.288158] Could not find netns with fd: 2000
[  509.288207] Cannot link a netdevsim to itself
[  509.288258] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).