[  481.781116] netdevsim netdevsim667 eni667np1: renamed from eth1
[  481.878117] netdevsim netdevsim377 eni377np1: renamed from eth0
[  482.108944] Could not find device with ifindex 2000 in netnsfd 11
[  482.109130] Could not find netns with fd: 2000
[  482.109221] Cannot link a netdevsim to itself
[  482.109368] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).